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i was wondering if anyone could help me if i put a 2.5 inch exhaust on my zx3 i know i will lose low end power but will gain high end power, but i want to know if add a iceman intake will it even out the hp through the powerband?
 

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I would say that you will need to do much more to gain back your low end power. I installed a Borla 2.5" to my otherwise stock engine and the loss at the low end was a real let down.
 

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unless you plan on going forced induction, go with 2.25".
 

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what would you smoke with a 2.5" pipe?!?!!

Just kidding, I just got a 2.5" kit from Yodude. Biggier is also better if you run nitrous. Either way you are putting more oxygen into you combustion that needs to be exhausted.
 

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Flowmaster cat backs use 2 in i.d. pipe .This is interesting since most cat backs use 2.25.I guess they thought to keep the velocity high.2.5 seems to large for a n/a mildly modded motor.Car would probably be slower than stock with a 2.5.
 
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