Stillen HFC vs. BERK HFC

Originally Posted by tranceformer I did the same with my 350z when I added a set of Fast Intentions testpipes. It worked just fine. It was a cheap and easy

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

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04-13-2009, 09:34 AM

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semtex

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Quote:

Originally Posted by tranceformer

I did the same with my 350z when I added a set of Fast Intentions testpipes. It worked just fine. It was a cheap and easy fix.

But for some reason when we installed a set of Helix v2 testpipes on my friend's 350z it didn't seem to work that well. The helix testpipes he had came with the built-in extensions for the o2 sensors, they kept throwing a code for some reason.

I never did like those kind of test pipes, I prefer the ones without the o2 sensor extensions.

On these Helix test pipes, do you by chance remember whether or not the extensions were closed off at the end where they connected into the test pipes? I think that might be the key.

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