370Z Nismo questions..HFC vs Test Pipe

klubbheads · 04-29-2010, 10:29 AM

Quote:

Originally Posted by InTheZone

Just buy a HFC

With Test Pipes:
-you won't pass emission inspections, unless you're in one of the states that don't have them
-your car will be spitting a ton more carbon monoxide=bad for everything
-if you're ever idle and smell something bad, that's your exhaust

a HFC will give you almost the exact results in HP gain, although neither gives you much. But it still functions like a normal catalytic converter

- you won't pass the emissions inspection no matter if you have test pipes or HFC
- lots of automobiles spit out ton of carbon monoxide. One Z with TPs is not going to ruin the world.
- there is a good chance you will get that smell with HFC as well.

OP: With TPs you will get some rasp at certain rpms no matter the exhaust type. HFC s dont have that problem.

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