As ANMVQ stated in the first page, the Stillen kit with a custom tune is not bad whatsoever. Its still a better alternative than going the n/a full bolt ons route, if you are calculating horsepower per dollar. Purely lacks for room to go close and beyond 500whp... Which EVERYONE says they want to hit, till they get their car back with the extra 100+whp. If you aren't looking to build the engine to handle more power, then this would be one of better options that we suggest to our customers.
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