100hp / Liter

red6spd · 10-18-2011, 05:09 PM

Well if you want to run Cats you would have to go with Stillen's Shorty headers which from what I hear do nothing since the stock Exhaust Manifold is not restrictive. Your other option is Long Tube Headers by Fast Intentions. But for the price of them and the install price I dont think the small gains are worth it over test pipes.

pulpmelon_Z · 10-18-2011, 05:15 PM

I guess it varies from state to state, but in general do you guys have to pass an emissons test?

Can you get though on test pipes or do you swap the cat converters back?

10-18-2011, 05:09 PM	#1 (permalink)
red6spd A True Z Fanatic Join Date: Apr 2010 Location: Long Island NY Posts: 3,277 Drives: 2010 Z Coupe M6 SPT Rep Power: 22	Well if you want to run Cats you would have to go with Stillen's Shorty headers which from what I hear do nothing since the stock Exhaust Manifold is not restrictive. Your other option is Long Tube Headers by Fast Intentions. But for the price of them and the install price I dont think the small gains are worth it over test pipes. __________________ 2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness. ???Whp ???WTQ (Will find out come spring time)

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10-18-2011, 05:15 PM	#2 (permalink)
pulpmelon_Z Base Member Join Date: Oct 2011 Location: UK Posts: 23 Drives: 370z Rep Power: 14	I guess it varies from state to state, but in general do you guys have to pass an emissons test? Can you get though on test pipes or do you swap the cat converters back?