Name: Roush R2300 475 HP Supercharger Kit; Phase 1 (05-09 GT w/ Manual Transmission)
Brand: Roush
SKU: 42154
Price: 6116.99 USD
Availability: InStock
Rating: 4.9 (16 reviews)

Product Information

Features, Description, Reviews, Q&A, Specs & Installation

Features

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

Description

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

Roush 421099

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

4.9

Customer Reviews (16)

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Ratings Summary

4.9 out of 5 overall rating from 16 customers

Installation Time: Weekend

Installation Cost: $1000+

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February 14, 2019

5 2007 GT - 2007GT

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!
Helpful (20) Thanks for your input!
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June 15, 2018

5 2007 GT - MikeR Installation Time: Full Day

Wow,,Wow,,Wow,,

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
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June 22, 2017

5 2008 GT - 2008 Installation Time: Full Day

Roush stage 1

Brought the roush stage 1 kit for my 08 GT nice product much more kick
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June 07, 2017

5 2007 GT - FangGT Installation Time: Shop Install Installation Cost: $1000+

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...
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February 01, 2017

4 2005 GT - Russ Installation Time: Full Day

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
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November 16, 2016

5 2008 GT - Pal Installation Time: Shop Install Installation Cost: $1000+

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.
Helpful (10) Thanks for your input!
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August 26, 2016

5 2010 GT - 2010Stang

Awesome!

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
Helpful (20) Thanks for your input!
June 27, 2016

5 2008 GT - IRDW Installation Time: Shop Install Installation Cost: $1000+

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.
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December 25, 2015

5 2006 GT - KahuluiTom Installation Time: Weekend

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!
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December 01, 2014

5 2008 GT - JALEX Installation Time: Shop Install Installation Cost: $1000+

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.
Helpful (13) Thanks for your input!
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Questions & Answers (76 answers)

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
You are safe with this kit. Now if you upgrade the pulley and start pushing more boost, you will start to push the line on breaking something. You would need to upgrade the fuel pump setup for anything over this kit.
Stock internals will work fine as long as you don't try to change pullies or otherwise run more boost than what the kit produces. I do, however, recommend adding a GT-500 dual fuel pump for added insurance. Run a forced induction engine lean, and you're looking at a rebuild at best and a new block at worst.

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 (5)

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...
First, NO, this supercharger will not fit under a cross brace. Hood clearance once installed is VERY slim. Roush says you don't need to upgrade the fuel pump, but $750 for a GT-500 dual pump for extra insurance is a lot cheaper than $3-5K for a new motor. Plus, the GT-500 pump will readily support just about any other upgrades you can throw at it. My Mustang had 65K miles at time of Roushcharger install. Granted, it hasn't been on my car long but I have made a few 400 mile trips with it already, with no problems. I will try to get you some dyno results when I get my car custom tuned so I can add headers.

Helpful (5) Show 1 more answer

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!!!
Its has nothing to do with the supercharger... ROUSH provides a tune with this supercharger kit and it is designed to work with a stock motor. ROUSH does not do one-off custom tunes. They are OEM. Since you have headers, you should be running a custom tune. All you need is to have your current tune revised for the supercharger. There are a lot of changes, new injectors, new MAF housing, etc... New tune is required!!

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.

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10 More Questions

Can you hear this one whine? 1 answer

Hi, This supercharger will produce a very nice wine.

Helpful (2)

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

No, the ROUSH TVS includes a GT500 throttle body. This supercharger only accepts GT500 sized throttle bodies.
Your throttle body would become obsolete with this super charger.
Nope, sorry!

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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

It is safe to remove the strut bar yes. As for the clutch will you want to find a clutch that can handle the amount of torque you will be making.

Helpful (1)

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

Yes they can be ported but not like the old eatons, the TVS are much more efficient and by just swapping the pulley to get more boost is enough to get higher horsepower levels without the need to "port" the blower...
I have a 2008 roush stage 2 Auto trans will the phase 1 kit fit my my pony
I was told YES. The R2300 is an upgrade to the stock GT500 supercharger. There is a company that buys this supercharger then ports and polishes it.

Helpful (1) Show 2 more answers

Could I request a Bama tune for this? 0 answer

Could I request a Bama tune for this supercharger kit? 0 answer

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

This will not fit 2010 models, nor will it fit automatic transmissions.

Helpful (0)

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

The reason this won't fit is due to the different engine bay design of the 2010+ GT's causing clearance issues with the blower and different cold air intake design.

Helpful (0)

Where could I buy just the lower intake manifold? 1 answer