proof of stillens exhaust claims?
Originally Posted by DaveB
Expect 8-10whp/wtq on a Dynojet for the Borla or Stillen dual exhausts whether it's a G or a Z. Other advantages of these exhausts are their lighter weight and improved sound. Don't expect a legit 20whp. It's BS.
Originally Posted by G35_TX
BS but there have been tests out there that say otherwise. 

Originally Posted by DaveB
Really? Even DaveO's Sports Z magazine found that the Borla and Stillen TD exhausts gave about 8whp. Are you calling him a liar 

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