i just ordered a cobb equallength header without cats and ceramic coating for my 2.5 i also just purchased an sti pitch stop, sti clutch line, sti tranny mount. my next purchase will be a set of cobb street performer cams.
on a stock RS the header gained 10hp at redline and 19lb-ft at just 2,000rpms. the cams gained 19hp over stock. since i have a cobb cai and spt muffler it might gain a little more. but i think it will run the same times as a stock wrx if not better.
I'm a little worried about the headers, everything I've read state's wrx's lose power with headers....Cams is actually something I've thought about...I'd like to know how they turn out.
the sti tranny mount is going to give you a huge difference in shifting..it made a tramendous difference!! shifts are a lot more direct..it does increase cabin noise quiet a bit..makes it feel much more solid..i would recommend this new mount to everyone
Take your time and try to salvage your heat shields...I looking forward to the sound and power it makes....Have fun!
no install yet. i ordered a cobb pro-street clutch and lightweight flywheel. i just ordered an s-afc also. i need a few more things but i have to pay money back in taxes and car payment and insurance so it`s on hold right now. i`m buying cobb spicy cams once my bills are taken care of and topspeed is going to do the install. no point in installing the header yet because it will come back off for the cam install. just have to wait.