89GPSE Posted June 23, 2004 Report Share Posted June 23, 2004 21 HP over the other Leading brands sold me. Quote Link to comment Share on other sites More sharing options...
BIGBULS Posted June 23, 2004 Report Share Posted June 23, 2004 I will let the specs do the talking for my mufflers. http://store.summitracing.com/partdetail.asp?part=SUM%2D630125 Not trying to start a muffler war but needed to defend my choice. They are still a chambered muffler............going to a straight through will get you another couple of hp at higher rpm. With you having a low reving MFI enbgine, it isn't as big of a deal, but those mufflers would NOT be optimal on anything that revs past 5K with any authority. BTW.............Summit could claim that their mufflers make 600hp more than a competitors...........that doesn't mean it's true. Manufacturers lie ALL the time about power gains (only a select few actually provide dyno charts and REAL power gains.........AEM and Injen come to mind........and Random Technologies makes an attempt). Quote Link to comment Share on other sites More sharing options...
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