Whipple 15-17 Mustang GT Gen 4 W175FF (2.9L) Stage 2 SC Kit / Intercooled / 10-11psi / Black

Customer Reviews 1 item(s)

OEM quality fit and finish with OUTSTANDING performace!: Fit - Outstanding. Everything is direct bolt on with every piece you need in the kit.

Finish - Outstanding. Every piece is perfectly machined and painted. There wasn't so much as a single milling burr in sight. Every hose was excellent and pretty dang clean for being hoses.

Quality - Outstanding. Goes along with the finish. It's really a shame to cover up some of the smaller pieces because it's all really beautiful.

Instructions - While I ordered and installed in early 2016, I've watched every recommended step to be added or clarified get added to a new revision of the install manual. Whipple really goes above and beyond to ensure that your install goes well. I wouldn't say a total novice can do this EASILY, but if you can identify basic tools and have installed a few of your own modifications, this is within your grasp of doability. Especially with so many helpful folks on Facebook and forums.

Performance - What's above outstanding? I'm not sure, but that's the word. This kit will put you into the 600's as is. The kick in the pants is great. The driveability on Whipple's tune is fantastic. If you can imagine driving off the lot with a brand new car, but at 600+ horsepower, this is like that.

All in all, I highly recommend this kit. I've personally taken over a half-dozen people for rides and then been told they purchased their own that same week. This is the game changer for S550 Mustangs. Do yourself a favor and buy one. Review by Rob_teh_builder / (Posted on 8/29/2017)