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Old 11-12-2012, 03:39 PM   #3
Royce01
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Location: Palm Bay, FL
What I Drive: 2001 Amazon Green SE 4dr

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SPI's arent completely terrible, i see you already have the air intake good. you could add a cat back exhaust system and a high flow cat will also help.
I have one built by magnaflow and it sounds BEAST!!!!! anyway it gives good power as well. SPI motors are good for torque but not horsepower. torque is what gets you off the line. my buddy has a zetec and we've raced, my car will get ahead of him but he'll catch me in the top end but by the time he does its the end of the drag strip. parts for this motor are hard to find but some parts from a zetec will fit or can be modified. the zetec has more aftermarket support than the spi will ever have so going with a zetec aint a bad idea either. I stuck with the spi though because im hard headed and i really think the spi deserves a little more respect. but best of luck
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