Thread: Modified Xcessive plenum kit

Good info. So, in your opinion, would one lose power with a shorter yet bigger ID(4") pipe if it was behind the headlight? Thanx.

Z

I def notice a difference in real world driving conditions going from a short WAI to a CAI.. however, on my car, it made no difference on the dyno between setups.. I tried a bunch of them. But it really does feel different when you actually drive it, I guess with the way the air is flowing around the car instead of just a fan like on the dyno.

Yes!! Basically you will lose way too much velocity of air with a 4in intake piping in my opinion and definitively cold air > warm air and the ram effect of the intake coming out of the headlight its even better for track purpose!!

Close the hood when you make the dyno pass with a WAI and you will see the difference.

What shape did you gentlemen receive your plenum adapter plate in? I assumed it would be machined to perfection, but I received mine today and it is actually quite rough, with scratches on the surface and the port transitions are definitely not as smooth as they could be. I am mainly just curious if that is normal.

This is the plate I am referring to (not my picture).

Hmm.. what was the price? If it was significant I'd inquire to the seller about that; I would think it would be relatively smooth, unless it was a cheaper one

It was normal with the one I got in my hands. Thats probably why everybody port them...

You " have" to port it. It's basically just an adapter. Final touch up is up to u.

Mine after porting.

Mine ported!!

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Interesting. Was the car tuned after the change to the shorter setup? I'm running a 4" setup now but it's pretty much only 12" long between filter and tb.