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Best shortie headers?

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Old 02-13-2006, 09:02 PM
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Originally Posted by slowpoke96z28
long tubes with catalytic converters will pass an IM240 inspection. and a clear DTC history in the PCM will pass the plug-in test. BTW, the best shorty header is the one you remove to put on LTs.
What's IM240?
Old 02-13-2006, 09:42 PM
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according to epa.gov

IM240: A high-tech, transient dynamometer automobile emissions test that takes up to 240 seconds.
Old 02-26-2006, 06:40 PM
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We all know that long tubes make the most power. Sure, the shorties are a compromise, but if your car is a 98-99 I believe they can help. On Horsepower TV they put Edelbrock shorties on a 98 camaro and got 15 horsepower to the wheels. On top of that, they took 40 pounds of the front of the car by losing the "heavy" stock manifolds. I don't believe they are worth getting unless you can find a used set for cheap, and if you live in a Smog **** state like Cali. Another benefit to them is the ground clearence on lowered cars and and not being hassled by cops because they have C.A.R.B. certification. Just my .02
Old 02-26-2006, 11:56 PM
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I want LT's so bad for my car, but the god damn state of California sucks for emmissions. But i think ill be done for mods for a little bit, because I have only had my car for about a month and I have done all in sig. So im gonna look around and see if I could find a local Sacramento shop that doesnt give a ****.




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