I've been working with www.quicktimeperformance.com
A well known american and now import company. They have a bunch of good write-ups in magazines and currently have the fastest stock turbo'd wrx (12.78 at around 105.something) with a stock turbo..stock trans etc. They are developing a 3inch downpipe with electronic cutout for the evolution. Im trying to see how much interest there is for some extra HP. Remember most turbo race cars have open downpipes, essentially with this. While offering stealth, stock like appearence and sound when closed. I've seen the cutouts and they dont leak like some of the cheaper quality ones. The wrx's are getting very nice gains, around 10-15whp with the open cutout and similar in torque gains. the more mods you have, the more it would help out. Just getting this out there. They will have a booth at Englishtown this sunday for the sport compact nationals. After they finish it, I will have the car re-dyno'd with the results.

 

Let us know. There is a lot of discussion about this now, and I'm interested in going back to the stock catback, and adding this cutout on my downpipe.

 

Count me in.