So what exactly is wrong with the Stillen SC kit?

ANMVQ

Not sure what you mean? You saying they wont make 425WHP? You are right if your saying their kit and their "box" tune, Heck I made NA 298 WHP on their tune I only made 342 WHP

UPREV tuned made 412 WHP, Just proves their tune SUX..

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

DEpointfive0

You know what, looking over all their info again... The Stillen kit looks just fine. I think every member that has it is actually making the numbers they promise 480-510hp, and they get around 420-430WHP...
I thought they always advertised WHP numbers and gains (which they told me on the phone) but it looks like for their S/C kit, they measured WHP and HP at the flywheel

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luigi90210

Don't you have the awd G37?

If you do than you made more power than what they advertised because awd has a greater drive train loss(about 35% give or take) so on their tune, you should have only made 325whp give or take so assuming drive train loss is not that bad, the 342whp you made seems right on track with what stillen advertise for their kit

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SOLD 370z
New Car:classified
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ANMVQ

I do but the AWD is not full time. Car will drive as a RWD till it detects slip.
My finally numbers before cylinder 3 went on vaca LOL was pretty good .
457 was nice but short lived .
Showme99 yea right
I think, KNOW all my issues was cause the dealer were azz clowns and could fix a damn thing , if I either went to my tuner or RT I would still be driving.

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,