Detroit Tuned Supercharger Bypass Valve

OTS-AC706-NQ0

Detroit Tuned

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Eliminate the "Yo-Yo" with the Detroit Tuned Bypass Valve

Tired of the "yo-yo" feeling in your MINI Cooper S? The Detroit Tuned Bypass Valve (BPV) is a re-engineered OEM valve specifically modified to eliminate the annoying on-again, off-again sensation that plagues many 2002-2006/7 MINI Cooper S models, especially those from 2002-2004. This "yo-yo" effect, where the valve rapidly opens and closes around 2500 RPM, makes it feel like you're constantly tapping the gas, even when you're not.

We've solved this problem by installing a stronger spring in our BPV. This allows it to overcome the vacuum conditions that cause the erratic opening and closing. Unlike the factory valve, which closes at 0" of vacuum, our BPV closes at 6" of vacuum , ensuring smoother, more consistent performance. While MINI attempted to address this with an ECU tweak in 2005-2006 models, it often fell short. Our BPV offers a true, reliable fix.

Stiffer, Quicker, and More Boost

Beyond eliminating the "yo-yo," the Detroit Tuned BPV offers significant performance benefits:

  • Quicker Boost Generation: The stiffer return spring leads to faster boost build-up, giving you quicker throttle response and smoother transitions.
  • Increased Boost: Most cars see approximately 1 psi more total boost at redline .
  • Maximum Boost Retention: We precisely adjust and center the butterfly assembly to ensure it closes fully, maximizing boost.

This makes our BPV perfect for aggressive drivers and racers seeking improved throttle resolution and a smoother power delivery. While a very minor loss in fuel economy is possible, the enhanced driving experience is well worth it.

Easy Installation and No Core Charge

The Detroit Tuned BPV is designed for a straightforward installation. It comes with detailed instructions and all the necessary hardware . Plus, there's no core charge , so you don't need to return your old valve.

Fitment Note: This bypass valve is only compatible with the first-generation (2002-2006/7) MINI Cooper S models equipped with the Tritec engine.

side view of the Detroit Tuned Supercharger Bypass Valve for the R53 MINI Cooper S

Free Domestic Shipping

We ship orders every weekday. All orders placed by 2:00 pm PT will ship the same day. You will receive a shipping notification when we print the label for your order. The tracking will not indicate that the order has been shipped until it is picked up and scanned in by the carrier. Orders placed after 2:00 pm PT on Friday will ship on Monday.

Our Team is comprised of a small group of dedicated individuals who each pride themselves on providing their best work to our customers every day. We are all willing to go above and beyond for our customers to make sure they are happy with their entire shopping experience. If you need anything, please drop us a line at support@cravenspeed.com and we'd be happy to help you out. Our customer service team will usually get back to you within the hour during business hours.

Click here to meet the team!