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Putting a fuel system in the car and moving to e85. Currently on 93 with the 3.875 pulley ~11psi and right at 700 to the tire with my stage 2 kit. I know there are gains to be had just by making the fuel change. I'd like to take advantage of some holiday sales and buy the right pulley (chart...

I’m selling my Lethal Performance LPXHD twin disc clutch with lightened steel flywheel out of my 2017 Mustang GT. The clutch has 525 gentle street miles (lots of stop and go in Chicagoland) and only 6 passes at the track. It’s perfectly broken in and ready to go! Only reason I’m selling is...

Selling my QA1 Rev Series Carbon Fiber Driveshaft - SFI rated for 2015-2017 manual cars. QA1 part number JJ-21207. 1000 street miles on the driveshaft and only 6 passes at the track. Only reason I’m selling is because I put a Magnum XL in my car and could no longer use it. This is THE BEST...

Last fall I noticed a strange noise under the hood while the car was idling. I took the main drive belt off and it went away. I checked all the pulleys and found one of the provided Whipple smooth idlers had a lot of play in it. I sent Whipple a video of the noise and showing the play with the...

I had Gen5 Whipple stage 2 kit put on my car a month ago and finished my clutch break-in last week. Went back to the shop this afternoon to put it on the rollers. It completely exceeded my expectations!! This Whipple is insane! The pull was done in 5th gear and stopped just shy of 7500rpms to...

Did some searching, but still wasn't clear. I know they need to be 14x1.5. Curious how deep they need to be? I think one of these two will work. What is everyone using? Amazon has a lot of options, but I don't want to buy junk.