So just ordered my Stillen SC

Team_STILLEN

Test pipes will cause you to lose some boost pressure in the cylinder. We have seen around 10-20 whp losses with HFC's and Test Pipes.

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STILLEN | Robin | Performance Specialist | rmoses@stillen.com| 800.576.2131 x133 |

mikey1600

will this change with your high performance kit being tested or will it be better with HFC's/test pipes with higher boost levels from the supercharger?

gussyturbo z

You think I should go back with HFC? i do have a 3" a am exhaust. I don't know what to do!!

mikey1600

he's saying with the stillen supercharger kit, it works better with more back pressure, so going from test pipes to HFC probably won't make much difference, the 3" exhaust won't be helping with this either, but remember, don't judge your dyno numbers vs other peoples, every dyno is different and will read different figures.

the only way you can truely measure your gains is on the same dyno and roughly the same temperature during your runs, you would need to do some before and after, but again the money you spend to change parts, probably isn't worth the HP you MAY gain, there is no guarantee.