Yes just one pulley down. Never ran the 3.875 still have it but I assume pulley and boostane are good for 40ish rwhp as most stage 1 completely stock down to 91 I'm seeing 670's
I have a Stage 1 kit in my car. It is completely stock: exhaust, headers, everything. During the install, I chose to go with a 3.75 pulley and a bottle of boost. I put down 713 rwhp. No issues or errors; the car runs great.
My last car was a 2020 GT500 that I sold two years ago. My previous car was a 2018 Mustang GT with the Stage 2 Whipple 10-speed automatic. The previous car before that was a 2016 Mustang GT with a 6-speed and a Roush supercharger. I've had my current car (a 6-speed Tremec) for a couple of months...
Called Ford Performance’s 800 number today, and as long as it’s installed by an ASE-certified technician (and their number is on the invoice), it will be warrantied through Ford. Same goes for installations by a Ford Master Technician. Musta be registered withing 30 days. Thank you all for your...
Has anyone self-installed a Stage 1 warrantied Whipple kit and registered it with Ford? I will be using an ASE Certified Technician not a Ford shop. Also, how did you register it if you did?
I recently purchased a Dark Horse Handling Pack replica spoiler for my standard Dark Horse. I peeled off my spoiler, but after putting this other spoiler together, I am not a fan of it. It has too many imperfections and is nowhere near the quality of the factory spoiler. What I'm looking for...