Originally Posted by Teh Police
Some things I would avoid buying off ebay... exhaust pieces and things that are just pieces of metal the only thing you are getting when you pay more for them is the name.
Not true. My experience: I bought an ebay knock off catback for my 05 a long time ago. It was advertized as 304SS. Everything was 304 BUT a 1-2 foot section from the resonator to the flange. Said section was covered in rust in a couple years.
I bought a knock off Large TMIC for the same car. The y-pipe to turbo hose was too big around to be air tight on the turbo, even with big time clamps. It was boost leak city. I was unable to find a y-pipe replacement that fit the TMIC.
Knock off usually means this... You will save money for the moment and most likely have to fix something. You may have to throw it away.
I bought the Nameless Axleback too. I'm happy. It has the classic boxer rumble on the gas, but it's quiet at normal temp idle and cruising. No more headaches after long trips. I did some math too. If exhaust flow is relative to whp gains... If people are really getting 270-280whp protuned OEM equipment on a high reading dyno... I think it will have enough flow for 300whp combined with the Nameless midpipe and a DP. The nameless axleback gives about 12% more flow than OEM. Also, 270whp + 12% is about 300whp. Valid statement?
Notes: 2011 WRX Sedan OEM axleback is 1.75" pipe x 2. Nameless is 2" x 2. Area of a circle is Pi x radius squared.