Air filter - Fram CA10544 extra guard

Sh0velMan

9WHP without a tune. I did a pull, swapped them, did another pull, swapped them back, did another.

Difference was exactly 9WHP both times.



Others have done similar tests and the results are measurable.

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speedfreek

I am running the aFe Pro Dry S filters. Id be willing to bet they get similar gains as K&N. Seeing as how the Stillen G3 and Takeda Stage 2 CAI stack up and each run K&N and aFe respectively.

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synolimit

Damn, not bad. Exhaust too? I only ask because how were the AFR? I thought I read, intakes and full exhausts weren't the greatest to run alone.

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13 370z-

Sh0velMan

It was with the OEM exhaust off of a Nismo 370, stock headers and cats.

Only thing we did was put the filters in.

According to the widebands on board and the wideband at the tail pipe, AFRs were exactly the same, it just traced higher on the MAF volts (a tiny bit) because it was pulling more air, and the ECU compensated by adding fuel, exactly as the system is supposed to work in open loop.

With the non-nismo exhaust, maybe there would be a difference in the gain you get from the filters, but I really doubt it.

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