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Roush R2300 475 HP Supercharger Kit - Phase 1 (05-09 GT w/ Manual Transmission)

Item 42154
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    Features, Video & Details

    • Phase 1 Kit - 475 HP and 435 lb-ft at the Flywheel
    • 2.3L TVS® Ford Mustang Supercharger
    • Single Belt Phase 1 Kit
    • ROUSH® Cold Air Intake System
    • Dual 60mm Electronic Throttle Body
    • Unique Fuel Rail with 52 Lb/Hr Fuel Injectors
    • 1 Year / 12,000 Mile Warranty on Components
    • Plug-And-Play Wiring Harness for Quick Connecting
    • Stock Fuel Pump Can Be Used
    • Fits 2005-2009 GT Mustangs with a Manual Transmission

    Review & Installation Video

    Review & Install Video

    Unleash The Horses - Phase 1 Kit. The new ROUSCHcharger R2300 Phase 1 Kit kicks your 2005-2009 4.6L 3V Mustangs power up to a whopping 475 HP and 435 lb-ft at the flywheel.

    Monstrous Blower Kit; Roush Style. This complete package transforms your GT into a track-shredding beast. Comes with a 2.3L TVS® supercharger with black finish, upper and lower intake manifolds, an intercooler, a low temp radiator, the ROUSH® cold air intake system, a dual 60mm electronic throttle body, a 105mm bolt-on pulley and a unique fuel rail with 52 lb/hr fuel injectors.

    New High-Flow Technology. The ROUSHcharger R2300 uses Eaton’s new Twin Vortices Series® technology. This supercharger design sports a four-lobe rotor and high-flow inlet to greatly enhance thermal efficiency, higher volume capacity, and higher operational speeds.

    Dramatically Easier and Faster to Install. A new feature for 2005-2010: the plug-and-play jumper harness. What does it mean for you? No wire splicing - simply connect with user friendly jacks. All hardware, brackets, fasteners and instructions are included.

    Upgraded ROUSH PCM Calibration. ROUSH® PCM calibration is a success of engineering that maximizes the power of the system. ROUSHcharger owners will receive a ROUSH® PCM Flash Voucher Card, which is used to obtain the specific calibration needed for your Mustang and requires ROUSH Diagnostic Tool (RDT) software and a J2534 Pass-Through device to upgrade your PCM (software and pass-through device not included). This kit also features the ROUSH® logo, showing that serious performance lies within when you raise your hood.

    Roush Performance Quality - Guaranteed. Roush is known for a rich tradition of excellent racing performance engineering at the highest level of OEM quality and design. This supercharger kit has a warranty of 1 year/12,000 miles on components only.

    Application. This Roush R2300 475 HP Phase 1 Supercharger Kit is specifically designed for use on 2005-2009 GT Mustangs equipped with the 4.6L 3V Modular V8 engine. Fits manual transmissions only. NOT approved for sale or installation in the state of California.

    Please Note. Roush Supercharger Systems are built to order for our customers and because of this, there can be a 2 to 4 week lead time on orders once your information is received.

    Fitment: 2005 2006 2007 2008 2009 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • TVS2300 Supercharger
    • Upper Intake Manifold
    • Lower Intake Manifold
    • Low temp radiator
    • Intercooler
    • ROUSH cold air intake system
    • Dual 60mm electronic throttle body
    • Fuel rail with 52 lb/hr fuel injectors
    • 105mm bolt-on pulley
    • ROUSH PCM Flash Voucher Card
    • All necessary hardware
    • Installation Instructions
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (26) Submit Your Photo

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        Questions & Answers (74)

        5 Top Rated Questions

        will stock bottom end work with this? will i need to get a rebuild kit for the bottom end or will the stock internals hold up the the HP produced by the super?

        • Yeah keep the at 8-10 p s I

        Helpful (22) Show 2 more answers

        Will I get a whine from the 8-10 lbs of boost?

        • The Roush R2300 475HP Supercharger will allow for wine at stock boost levels, however it will not wine as loud as higher boost superchargers.

        Helpful (4)

        Headers A question and a comment. I read a review saying this will not work if you have headers without a custom tune. Is that true? If so I will probably find a different supercharger since places around here that can provide decent tunes are few and far between. It's hard to believe Roush has never encountered a car with headers before with one of their superchargers. Ugh!

        • Roush ONLY writes tunes for stock engines. I wrote the review you're talking about, and before I bought this blower I specifically asked Roush this question. After extensive research, I discovered that the best option is to contact JDM Engineering, as they can write you a custom tune for whatever combo you have. According to them, Roush writes their tunes to be as safe as possible, so there's a lot of power left on the table. JDM has extensive experience with tuning RoushCharged vehicles, as 1. they helped Roush develop their first tunes for these blowers and 2. they have a 4.6 3v RoushCharged Stang that runs 8s! Also according to JDM, RoushCharger plus headers plus their tune will equal around 500 REAR WHEEL horsepower! Oh yeah, one last thing: if you go the headers/JDM tune route, make darn sure you have a GT500 fuel pump installed. Good luck!!!

        Helpful (4) Show 1 more answer

        Can you use Ford Hot Rod Performance Cam Shafts with this Roush Super Charger? Also, can you use the ford valve covers as well? Looking at doing some upgrades and saving up to get the Roush Supercharger.

        • Any tune included with a supercharger kit like this would not be compatible with the Hot Rod cams. You'd either need a custom tune from someone like VMP for a supercharged setup, or a custom dyno tune from a nearby shop. Cams with a lope like Hot Rod cams do not provide the best gains for a supercharged setup. You'll want cams with less overlap. You'll often hear cams like this called blower cams.

        Helpful (3)

        Will this kit fit under the Ford Racing Strut connector on a 2009 Bullitt I am looking to add this to my 2009 Bullitt. Does this charger need an additional fuel pump? Any dyno results? O.K. to add to a car that has 50,000 miles?

        • There are a few things you need to know before moving forward. 1) Has the car been modified from stock configuration? i.e... does it have headers? The Roush system is FANTASTIC if you have a stock car. When you send the PCM to Roush they assume the car is factory. If you have added headers you will need a GT 500 Fuel pump kit, and a tune on a dyno. The best thing to do is to weight the options. I had to get a tune since I have Kooks headers; it needs the GT 500 Fuel pump kit and a retune. I also was able to us the GT 500 strut bar. The kit is mainly Ford Racing GT 500 parts with an Eaton 2300 SC and a Roush intake. I love it and would go and do it again if I had too, just would be a little wiser with the other parts needed. Oh, and if it is modified.... Don't send the PCM to Roush get it tuned on a dyno...

        Helpful (3) Show 1 more answer
        10 More Questions
        Can you hear this one whine? 1 answer
        Will u still be able to use ur old BBK 62 throttle body with the supercharger? I have a 62 BBK throttle body and don't want to wast it is it possible to still use it with the R2300 supercharger 3 answers
        So is it Ok, safe, to eliminate the strut bar if I install the Roush R2300 into my 2010 GT convertible? Also, what do I look for in replacing the clutch/pressure plate? 1 answer
        Can this Supercharger be ported and will i get significant HP gains if i do port it? like ive seen some Eaton superchargers on Cobras get ported and become different beasts, I feel like I'd like to get 500 hp like the FRPP whipple S/C but cant afford it, so I figured buy this one and maybe get it ported? thks 3 answers
        So yours site says this wont fit my 2010 gt yet the video and description says it does. So which is it? Is your site just confuse cause you changed the 05-09 and 10-14? even though the 10 has the same 4.6 as the 05-09? 0 answer
        will it fit a 2010 mustang GT with automatic transmission?i saw some review says it work with 2010 mustang,but im not sure it work with automatic transmissio 1 answer
        It says this supercharger will not fit my 2010 GT,even though its the same 4.6 Liter 3 valve engine with a manual transmission. How come? 1 answer
        Where could I buy just the lower intake manifold? 1 answer
        I have the Saleen S281 under drive pulley set on my 2005 GT. Can Roush supply the correct diameter blower pulley to provide the proper boost PSI with my UDP set? 1 answer
        If I upgrade the fuel pump will that affect the Roush tune that is provided? 1 answer

          Customer Reviews (16) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Weekend

          Installation Cost:$1000+

          • Performance Gain 4.692307 4.7
          • Fit 5 5

          • 5/5

            February 14, 2019

            2007 GT - Rocks!

            Purchased a 2007 Mustang GT with 101,000 miles. Clean car and ran good. Only mods were larger tires and a muffler delete exhaust. Wanted a project for my 16 year old to learn how to do some wrenching. Considered having a shop install the supercharger. However, we committed to doing it ourselves after reading the reviews on this site. Couldn’t have been happier with our choice to do it ourselves! Ran into a challenge out of the gate as 6 of the 8 plugs snapped off. Bought an extraction tool and it worked great to pull them out without issue. We worked a few hours for several weekends and had a great time following the very complete and detailed instructions. Found an install video on YouTube which was also great to reference. Ended up going with the Roush tune. The only other challenge was filling the coolant system, realizing a tool to pull a vacuum was needed to eliminate air in the system. Tried to burp it with a funnel and wouldn’t do enough to get the air out at the water pump. Bought a $100 vacuum tool online and worked like a charm. Finished up and put it back together and had a break in our winter weather where the roads were clear and dry. Talk about a great new ride! Stock gearing and first gear breaks loose without much effort, 2nd and 3rd gear has awesome pull! We will be stalling a new clutch as a couple third gear hard hits resulted in some slight slippage. Kinda anticipated this with the mileage we started with. I wasn’t easy on it and tried to make something fail and didn’t! Really pleased with how this runs! With less than $15k invested this was a great experience to share with my son. He was thankful, gained some new skills and confidence to tackle projects like this without fear of failure. Appreciate the ease of the entire setup! If you are considering tackling this yourself, don’t hesitate. There is nothing tough about this you can’t handle without having any special tools other than what I mentioned along with a torque wrench. Very satisfied as this gave our car the power this car was meant to have! New clutch, ford aluminum driveshaft and a lowering kit is the next part of the project before spring hits!


            Year: 2007 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Full Day

            June 15, 2018


            Had my local Ford Dealer install the Roush R2300 475 HP Supercharger on my 2007 GT ,,my car has only 25,000 easy miles on it,,I punched it one time on the way back home ,,just to see what it had,,,1st and 2nd gear ,was all the test I needed,,,,,one bad behind add on,,,,,best $7500.00 I spent,,,who needs one of those ugly cat fish looking 2018 GT 5.0 Mustangs,,,,,,I love My 2007 GT,,,,Best looking Mustang ,that Ford has ever made


            Year: 2007 Submodel: GT

            Helpful (48)

          • 5/5

            Installation Time: Full Day

            June 22, 2017

            Roush stage 1

            Brought the roush stage 1 kit for my 08 GT nice product much more kick


            Year: 2008 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $1000+

            June 07, 2017

            Only way to get POWER!!

            Don't bother with a stupid waste of money tuner thinking you're all that because you have a "custom tune" The only way you're going to get real power is by a supercharger or a turbo. "Hey bro, I got a custom tune on my stock mustang. Feel how much faster it is?" Don't been that guy...


            Year: 2007 Submodel: GT

            Helpful (15)

          • 4/5

            Installation Time: Full Day

            February 01, 2017

            Rough R2300 supercharger

            I have had my new Rousch supercharger installed for one week now, my mustang was already a rousch stage 2 2005, it has really brought to life the engine Dyno tested at 430 hp at the rear wheels, very smooth acceleration and can really cruise on highway


            Year: 2005 Submodel: GT

            Helpful (11)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $1000+

            November 16, 2016

            Great fit and performance

            Went in easily and the instructions were well done. Very high quality and looking forward to a lot of great years with it.


            Year: 2008 Submodel: GT

            Helpful (9)

          • 5/5

            August 26, 2016


            By far the best decision I've made. Took about a year of saving and begging the wife to let me but well worth it. All kinds of tire shredding power


            Year: 2010 Submodel: GT

            Helpful (17)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $1000+

            June 27, 2016

            2008 GT with Roush 2300 Super Charger upgrade

            I am disappointed that after paying $56xx. for the unit that I had to pay for FEDEX shipping and return shipping my PCM to Roush for programming plus I had to pay $100 for that programming. After these add on epxenses the Edelbrock E series might have been a more reasonable choice.... Beyond this I am extremely pleased with my 2300, my 3v GT really responds to the new HP upgrade. The quality of the product and the fitment is great. AM needs to change out the product picture on their website because, my unit anyway did not come as pictured with the carbon fiber air inlet.


            Year: 2008 Submodel: GT

            Helpful (12)

          • 5/5

            Installation Time: Weekend

            December 25, 2015

            Roush Performance!

            Kit is shipped in three big boxes. Quality packing materials are used to keep everything secure. I installed this kit mostly by myself. I had a buddy come over on the last day to help finish up. I wanted to take my time and enjoy the installation. Took me 7 days total. I had under drive pulleys so I had to re-install my original crank balancer. And I took my time with the wiring. You have to unwrap the wiring looms, being careful not to cut the wires inside the bundles. I soldered all connections and re-wrapped everything tidy and neat - factory looking. The kit instructions are very good. Could they be better? Yes, absolutely. There are a few steps that are very incomplete, or missing, but patience will get you through it. There are extra parts included to cover the different years, don't freak out. I have an automatic. The kit installs the same as a manual car. Roush did not spend the time to offer an automatic car tune, that's all. I am running an after market tune since Roush doesn't support automatics. Fitment and part quality are exceptional, it's a first class kit. I did have to modify one wrong style fuel injector clip. I also have BBK shorty headers. There is a passenger side heater bracket that is mounted with a large bolt. By cutting this bolt I was able to mount the bracket and keep my headers. The install is straight forward if you take your chill pill, don't get excited or get in a hurry to finish. There are a lot of steps. Be sure you have a couple of tables to lay your parts on, both the new ones and the ones you take off - super important! Keep your work area organized. Use a shop vacuum to keep engine area clean and coolant free. Be sure to use lots of zip ties, electrical tape, install a boost gauge, buy quality coolant, use Vaseline on rubber gaskets and hoses. Use a tuner who will tweak it using data logs - no one size fits all tunes. Removing the bottom radiator hoses is no fun. And dealing with the hose clamps will drive you to drink heavily. I found a perfect long nosed vice grip as my savior for them. Don't use screw hose clamps. You'll need a hack saw and file for a couple of steps. Car is amazing afterwards. Only WOT at the track for me. Oh and you'll need big wheel and tires!


            Year: 2006 Submodel: GT Kahului, HI

            Helpful (18)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $1000+

            December 01, 2014

            Great product

            Had this super charger professionally installed by a mechanic. After talking to the mechanic he was very impressed on how complete the kit was and how easy the instructions were to follow.


            Year: 2008 Submodel: GT Cody, Wy

            Helpful (9)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $500-$1000

            July 26, 2014

            No other mods compare

            Had this installed and chose a custom dyno tune rather than the included conservative roush tune. Total for install and tune was about 1200. If you are considering a mod to make your mustang faster other than this blower I would say if at all possible wait save and get your car supercharged. My car had no go fast mods at all. I focused on the exterior and waited. I couldn't be happier that I did. Car is like the exact same car. Unaltered under stop and go conditions. When you want boost though it's there instantly and the car pulls like an absolute monster. Put down 452 RWHP and 417 RWTQ. That was with the included phase 1 105mm pulley at a max of 6lbs of boost.


            Year: 2006 Submodel: GT Columbia, SC, USA

            Helpful (18)

          • 5/5

            Installation Time: Weekend

            July 03, 2013

            Roush Power and OEM Quality

            After suffering a humiliating defeat to my buddy's Coyote-powered '12 GT/CS, I decided to do something about it. After considering many options, I settled on a Roush supercharger. I have stock internals, so I figured the Whipple would be a bit, what Ford guy doesn't like Roush? I had a tough time deciding between the safer (less boost) M-90 Roushcharger and the R2300, so I called Roush's tech line. The tech told me that while I would like the performance of the M-90, the first time I encountered a Coyote 5.0 with cold air and a tuner, I would be upset because I would lose to it. Further, the tech told me that there was nothing else that could be done to the M-90 to upgrade it. Meanwhile the R2300 could be upgraded to Stage 2, 550 hp 500 lb-ft if I decided to get forged internals down the road. Well, alright then. R2300 it is. Things to be aware of with this kit: 1. You have to send your PCM (computer) to Roush to be tuned. An overnight box comes in the kit. I got my supercharger kit in on Wednesday morning. sent the computer off Wednesday afternoon, and had the computer back from Roush Friday morning. The computer comes back with a set of colder heat range olugs to prevent detonation. 2. You cannot have any aftermarket parts. Underdrive pulleys kill boost and prevent proper belt tension. Headers will lead to a Check Engine light and dangerous conditions for your engine. Any non-stock parts other than upgraded coil packs and catback exhaust will require a custom dyno tune. 3. You will need a grinder, band saw or chop saw to cut metal, and a good jack with jackstands for installation, as well as some good torque wrenches. The alternator's upper bolt tabs have to be cut off for repositioning the alternator. A small tab on the passenger cylinder head has to be ground down for belt clearance. 4. You will probably need some extra hose to more easily mount and route the intercooler, as well as some plastic body clips to replace all the ones in the radiator cover and fender liners you will invariably break during installation. 5. Personal installation can be done, but it WILL take a while. I installed this supercharger kit myself with some off-and-on help from friends. it took probably a total of 30 hours for us to install the supercharger. It's a very involved process, and there's a lot of wiring and hose modifications necessary that many people will find too tedious. My ONE complaint about the R2300 is the hardware packaging. Hardware for several different parts is packaged together, and it is VERY hard to figure our which bolts go where. Having a better organized hardware packaging system would have probably cut our install time by a third. One thing I was really impressed by is how comprehensive the R2300 kit is. It even comes with a new belt tensioner and a GT500 throttle body, among other things. Very few stock parts are reused. The instructions are very thorough, I just wish they had a bolt chart in them. Now for the fun stuff...this blower will give your Stang quite a major boost in power, no pun intended. Even better, if you did not know a blower was on your car, you would never suspect it. Even at WOT the supercharger is pretty quiet, with almost none of the blower whine Terminator Cobras are famous for. Since the supercharger install, my car runs like a's FAST, it's even easier to just cruise around town in than stock, and I'm still averaging between 24-27 mpg on the highway. Hard to beat that. If you are considering a positive-displacement supercharger, the Roush R2300 is a very good buy. I wish the supercharger had been the first thing I bought instead of messing with bolt-ons. You will NOT be disappointed.


            Year: 2007 Submodel: GT Texas

            Helpful (58)

          • 4/5

            Installation Time: Weekend

            May 10, 2013

            Plug and play?

            The kit is great! Needs better packaging, it's somewhat organized but screw/bolt/nuts are mixed. Someone needs to contact Roush and tell them to add a few more bands around the intercooler box, UPS tore to side of box up and almost lost the intercooler during shipping. Now about the "plug and play" feature. You have to cut 7 wires and solder on the extensions Roush supplies. Sorry, but that's not "plug and play"! The longer bumper bolts for the low temp radiator need to be about 5 mm longer. The kit is a good kit but could be better with a little more thought on installation hardware. The large bolt that holds the two cooling lines along the passenger valve cover will not fit if you have the BBK tuned shorty headers, go figure. And finally, if you have to buy solder to complete the wiring, make sure you get solder with some "lead" content! It will save you a bunch of time, do NOT use crimp extensions.


            Year: 2008 Submodel: GT Bowie, MD

            Helpful (17)

          • 5/5

            Installation Time: Shop Install

            October 18, 2011


            Great product, put that extra boost in that I was looking for. The mechanic i had install it reccomended to get and upgraded fuel pump so i ended up doing that which made the install cost pricey but well worth it. Absolutely reccomemded if your looking for some extra power.


            Year: 2006 Submodel: GT Reading, PA

            Helpful (20)

          • 5/5

            April 01, 2011

            R2300 supercharger

            The supercharger put that extra horsepower that I was looking for in my engine. It's a tire burner! I liked the installation instructions and how everything plugged right into my wiring harness!


            Year: 2010 Submodel: GT

            Helpful (47)

          • 5/5

            October 05, 2009

            TOO MUCH FUN

            WHAT A RUSH


            Helpful (29)

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