So I got an agency full exhaust and eBay brand headers that came with my car...

So I got an agency full exhaust and eBay brand headers that came with my car and a guy is telling me im losing power but from what ive read its added power

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  • Let me start it for u. Lol. Ebay headers are good. As good as any headers. Do add power. Stock headers have a ton of reduction for emission reasons. I agree with that. The exhaust, my understanding was u had a cat back exhaust? Never the less any will decrease performance from stock. A good name brand is better then ebay I would say, but I may be mistaken. But ANY will decrease performance from stock.

  • Cars
  • I am no expert by any means but I think there is no power gain with with the Agency Power exhaust system. I think there may be some gain with a quality header that has some R&D behind it. An eBay header has none.

  • Tune it with TTFS

  • Actually other people I know who have done the same modifications have found that the race version of Conforti Shark tune is much more efficient than Frank Smith's tune.

  • Just out of curiosity. ...when did ebay start manufacturing. ....anything?

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  • Sorry its manzo header