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Metco Motorsports Supercharger Pulley - 2.60 in. (07-12 GT500)

Market Price $156.99 You Save 17% ($26.50)
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  • Item 49701
  • MPN# MSP-2.60

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Features, Videos & Details

  • Boost Increase of 3-4 PSI
  • 2.6” Pulley
  • Two Piece Hub and Ring Design
  • CNC-Machined Aluminum Pulley
  • Black Anodized Finish
  • Fits 2007-2012 Shelby GT500

Review & Installation Video

Justin: Hey, I'm Justin with and this is the Stage 2 Power Pack Bolt-On Build-Up for all 2007-2009 GT500s. This Power Pack is for the GT500 owners who have already taken care of some of the basic bolt-ons; your cold air intakes, your tunes, and are looking for more power out of your supercharged 5.4 liter. Now if you guys are looking for more power out of your Mustang, whether it's a GT500, a GT, or a V6, be sure to check out some of our other Bolt-On Build-Ups by subscribing to our YouTube channel if you haven't done so already. This entire pack is centered around a very popular supercharger mod that's going to increase our boost and therefore increase the horsepower on our GT500. However, just like anything else in the forced induction world, you can't just add more boost without addressing other key areas of your ride to ensure you're getting the most out of each mod, but more importantly to ensure the safety of your motor. So first, let's get to everybody's favorite topic, more boost. The first mod in our Power Pack consists of the Metco Motorsports 2.6 Inch Upper Pulley. Now a smaller pulley like the Metco here is always a very popular choice with supercharged applications because what it's going to allow you to do is spin that stock blower much faster, resulting in more boost. In fact, we should be looking at three to four pounds of additional boost compared to the stock three inch pulley. The Metco itself is a very nice piece and is actually very popular with other GT500 owners here on the site. In fact, if you want, you can just click on the link below to read up on some of the reviews. Now the design is a two piece design, so you have a hub that presses onto the blower shaft first, and then the actual pulley bolts to the hub using the included hardware. This is just basically going to make any future pulley swaps a complete piece of cake. I really can't wait to see what a few extra pounds of boost are going to do to our power number, and best of all, that factory Eaton blower should really be screaming. With the pulley out of the way, let's talk about some of those other supplementary mods that I told you guys about at the beginning of the Pack. Now again, you can't just bolt up a pulley and go without addressing some other areas. Case in point, that smaller pulley has now created some excess slack in our belt which basically our factory idler will not be able to keep up with. What this is going to result in is dreaded boost and power robbing belt slippage. Enter the Metco Double-Bearing Auxiliary Idler Pulley Kit which we also installed on our '08 here. Now this is going to take up the extra slack created by the smaller 2.6 inch pulley and just create plenty of belt wrap to prevent any belt slippage, and more importantly it's going to ensure that those boost levels stay rock solid all the way through the upper RPM range. On top of that, the double bearing construction will ensure a little bit more durability over time, it might actually be a little quieter, and for a few bucks more it's really a no brainer. Finally there's one more part to go over before we bring in Mike J from Bama to tweak the tune a little bit for us, and of course turn the rollers one more time. With that pulley in place, we're really going to be spinning our blower a lot faster than we were before which of course will lead to more boost meaning we had to address our spark plugs. So we installed the NGK TR6 Plugs which really are the go-to spark plug for any Shelby owner who is upping their boost. They're a one heat range colder plug compared to our stock plugs which will help avoid any possible detonation. An important note, just make sure they're gapped correctly before install to avoid any spark blowout. Definitely recommend doing these plugs or something similar whenever you really start cranking up the boost like we are here with the '08. Alright, well with all the new parts in place, we have Mike J from the Bama Performance Team in here working on the new tune for us for all increased boost that we're going to be seeing thanks to that smaller pulley. Now Mike, obviously the car's going to be seeing a lot more boost than we were before. How does that affect things on your end? Mike J: Well basically with the higher boost levels, we're going to be seeing right around 12 to 13 pounds. I've already gone ahead and made adjustments to the ignition timing tables to make sure that we're not going to see any detonation at all. I'm then basically just looking at air-fuel ratio to make sure we're in that sweet spot. Justin: Awesome man, I know those colder plugs should definitely help with that detonation too. Mike J: Absolutely. Justin: Very cool, man. Well if you're all finished up, I want you to hop on out of there because I think it's my turn. I get to hop in, do another pull, and see what the numbers are. [engine noise] At the end of the Stage 1 Power Pack featuring our 2008 GT500, the car was making 508 horsepower and 479 pound feet of torque at the rear wheels. With all the Stage 2 modifications in the Power Pack installed, we were now putting down 548 horsepower and 545 pound feet of torque making for a gain of 40 horsepower over our Stage 1 numbers, and gains of 66 horsepower and 71 pound feet of torque throughout the curve. The Stage 2 Power Pack with pulley and supporting mods is always a favorite of GT500 owners, and I think it's pretty easy to see why. Honestly, there's nothing that compares to swapping those upper pulleys and really cranking up the boost. Hey, that's going to do it for the Stage 2 Power Pack Bolt-On Build-Up for all '07-'09 GT500's. Be sure to check out the other Power Packs for the GT500s and don't forget to subscribe to our YouTube channel if you haven't already. Thanks again for watching, and for everything Mustang, keep it right here at

More Power. The Metco 2.6" Supercharger Pulley will add an additional 3-4 PSI of boost (compared to the stock 3" pulley) to your Shelby GT500 for even more tire shredding power.

Two Piece Design. The Metco kit includes a hub that presses directly onto the blower shaft and a Pulley that bolts onto the hub using the supplied fasteners. This two-piece design makes subsequent pulley ring changes a snap.

Superior Materials. CNC-machined from billet aluminum the Pulley is hard-coat anodized in black for impressive good looks and to resist surface wear. The hub is machined from high-grade steel and is nickel-plated for long lasting surface protection.

Recommended Upgrade. To realize the full power potential that this pulley has to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. This Metco 2.6" Supercharger Pulley specifically designed for use on the 2007 to 2012 Shelby GT500 Mustangs equipped with the 5.4L Supercharged V8 engine.Technical Note. When this 2.6" Supercharger pulley is paired with Metco's MSI-90 auxiliary idler kit, the original factory supercharger belt can be retained with no belt slippage.

Fitment: 2007 2008 2009 2010 2011 2012 Details

What's in the Box
  • (1) Supercharger Pulley
  • (1) Hub
  • (5) Stainless steel bolts
Installation Info
Will it fit my Mustang?
  • GT500 - 07, 08, 09, 10, 11, 12

People Who Bought This Item Also Bought

Most Helpful Reviews


I installed the Metco 2.6 Inch pulley on my 2009 GT500 along with the Ford Racing 65mm throttle body and the tune on my JLT Tuner last week . All I can say is WOW ! These items along with the JLT cold ...

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Helpful (1)

A must have and easy install

This is a must have to give added boost. I'm pushing 15psi after install along with Cobra Jet Throttle Body and JLT CAI. Must use install/removal tool referenced in the ad. It's worth the money.

Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 13 Reviews

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1 Questions / 1 Answers

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when i install the 2.6 pully do i have to change spark plugs?


Helpful (0)
  • Depending on your spark plug now I would recommend upgrading the spark plugs when adding more boost with the Metco Motorsports Supercharger Pulley - 2.60 in. (07-12 GT500).


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Customer Reviews (13) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Performance Gain 4.8 4.8
  • Fit 4.7 4.7

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    February 22, 2017

    Definite performance boost GT500 2008

    Larry Day Performance Shop in Woodstock installed the Metco 2.6 and Auxillary idler pulley on my 2008 GT 500. Along with other bolt on mods the dynatune completed the upgrade. Very pleased !


    Year: 2008 Submodel: GT500

    Helpful (1)

  • 5/5

    September 09, 2016

    WOW !

    I installed the Metco 2.6 Inch pulley on my 2009 GT500 along with the Ford Racing 65mm throttle body and the tune on my JLT Tuner last week . All I can say is WOW ! These items along with the JLT cold air unit which was already installed , turned my quick GT500 into a real tire spinning , fire breathing , neck snapping , top end MONSTER !


    Year: 2009 Submodel: GT500

    Helpful (1)

  • 5/5

    August 25, 2016

    A must have and easy install

    This is a must have to give added boost. I'm pushing 15psi after install along with Cobra Jet Throttle Body and JLT CAI. Must use install/removal tool referenced in the ad. It's worth the money.


    Year: 2010 Submodel: GT500

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    November 18, 2014

    very nice boost in rwhp

    Purchased this pulley and tensioner for my 2011 Shelby GT Convertible, as well as off road x pipe and sct tuner. Had a local mustang shop, that also does a ton of dyno work, install these items today. Wow what a difference!!!! When all was said and done(fine tuned) it made 583.52 rwhp with 581 ft lb torque!!!! Needless to say I am very pleased. At the advice of the mustang shop owner I did keep the factory gt 500 mufflers on the car. Again I am very pleased. Very nice growl now. Not obnoxious but definitely will get you noticed but quiet as stock at cruising speed and not a drop of drone!!! And the blower whine is noticeably louder!! Bonus Bonus!!!!!! I guess the next step is the lower balancer/pulley......should put it over the 600 rwhp mark......then of course we are gonna want 700 rwhp......!!!


    Year: 2011 Submodel: GT500 Hendersonville, NC, USA 28792

    Helpful (1)

  • 5/5

    September 22, 2014

    Worth the money

    If you plan to do this install yourself, save the time and order the install tool at the same time. This reduced pulley definitely helps the car be more lively along with the tune (not required but I'm sure to see the most out of the performance of this pulley it is required) the car is definitely more powerful.


    Year: 2010 Submodel: GT500 Virginia, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    April 16, 2014

    09 GT500 Supercharger 2.60 Pulley

    Sure like the extra boost I got over the factory pulley. Recommend buying the Pulley Puller, took my Ford dealer 3 hours to install without the puller. Must have for sure.


    Year: 2009 Submodel: GT500 MN

    Helpful (1)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    March 16, 2014

    Pulley performance

    I like this product because it allows the whine from the supercharger to come through. It took my Ford dealer 4 hours to install. You can definitely feel the increases in power!


    Year: 2009 Submodel: GT500 Orange, CA, USA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 21, 2013

    Power gain and great sound

    Combine with JLT 127mm air intake kit the sound is GREAT, now i can listen the great sound of the supercharger!


    Year: 2012 Submodel: GT500 Quebec City, QC, Canada

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    September 09, 2013


    Awesome pulley! Biggest job is getting the stock pulley off. You definitely need a pulley removal tool for the swap but a fairly easy job to do. Took about three hours for the swap and idler install and thats only because I had to run to the store for another tool. Paired with the metco idler this pulley looks great under the hood and adds a significant amount of boost to the car. Before the swap the supercharger wasn't really that loud but now you can really hear it whine. Very pleased!


    Year: 2012 Submodel: GT500 El Paso, TX, USA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 23, 2014

    3-4psi of boost sounds godzilla

    Gets boost and looks good under the hood Has double bearing so it will last longer the stock if correctly installed


    Year: 2009 Submodel: GT500

    Helpful (0)

  • 5/5

    Installation Time: Less than 1 Hour

    April 11, 2014

    2.60in Pulley

    This Metco pulley was easy to install. The performance gain was exactly as advertized with a gain of 4 PSIs of boost. The whining on the supercharger is noticeable of course is combined with the Big JLT CAI. Installation was under an hour with an extra set of hands. I will recommend this product to all owners of Shelbys 2012 and earlier.


    Year: 2012 Submodel: GT500 Cache, OK 73527, USA

    Helpful (0)

  • 5/5

    August 01, 2016


    This pulley looks great and works great I installed with exhaust, cold air, 65mm throttle body and jms throttle response delay eliminater. and the Shelby just pulls and pulls and pulls. So detail on one mod is tuff but I'm a very happy costumer!


    Year: 2007 Submodel: GT500

    Helpful (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    March 25, 2017

    Awesome part

    Purchase this Metco pulley and also the tensioner had them installed and retuned the car it made a huge increase in power I would recommend these parts for any Shelby owner worth the money and RWHP gains.


    Year: 2015 Submodel: Other

    Helpful (0)

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