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Chucky, you are right about little HP & TQ increase.
but it looks great on. The performance shop guy told me there was 3HP, 3 TQ increased. I'm considering to buy HFC and will post some update once
I install it. Will see...
you can only take soo much air into your motor. Your not going to get 20 hp from changing some piping and filters. If you want big hp gains save for FI!!!!!
I've seen the dyno chart from FI and it showed stock 260HP, 200TQ after
catback installed 270.7HP, 207.6TQ=(10HP 7.6TQ) increased.
I guess each dyno has different result but my dyno showed stock 275HP,
228.4TQ and where the increase on FI compares to my dyno result????
I wonder what's our true stock HP & TQ... I believe it's around 270HP, 225TQ.
Don't know about that. However STILLEN produces some nice stuff. I have there headers installed on my car. They are awesome. Probably gonna get HFC'S but not 100% sure yet.