Just as the title says. Installed product to test 3 weeks ago. It works as advertised. $125 new; I'll sell for $90.
SOLD

 

Don, What does it do? What does it bypass?

 

From the Detroit Tuned web site:
The Detroit tuned Bypass Valve is a re-worked brand new OEM valve that is modified to eliminate the "Yo-Yo" in early year ('02-'04) Cooper S's, but is available for all year Cooper S's. This BPV uses a stiffer return spring, resulting in quicker boost generation, and thus quicker throttle response and transitions. The butterfly assembly is also adjusted to close fully, allowing for maximum boost. Perfect for the aggressive driver or racer. Expect a minor loss in fuel economy, and a great improvement in throttle resolution and smoothness.

 

PM sent

 

And another!

 

You haven't gotten back to me. Do you want it? Please let me know either way.

 

Sorry, it was a beautiful night and I was out motoring. Payment has been made.

 

Sold.