Stillen HFC vs. BERK HFC

Originally Posted by wstar Really? I figured that's why they had 4: the front ones to control the mix and the rear ones for emissions crap that doesn't really matter.

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust
Stillen HFC vs. BERK HFC

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04-15-2009, 08:04 AM

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NIZMOZ

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Quote:

Originally Posted by wstar

Really? I figured that's why they had 4: the front ones to control the mix and the rear ones for emissions crap that doesn't really matter.

Per UPREV this is correct. The rear ones only verify the cats are working and that is all. The car runs no different and these can be turned off in the ECU tuning.

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