Can anyone tell me what they do to these 2 parts that sets them apart from the stock ones? Can anyone tell me from experience the negatives and the positives from these two parts. I think I have theory down, I just want to know if anyone has had good and/or bad experiences with them (maybe even dyno proven).

Thanks,
Chris

94 se-r

They are both bored out to allow more air into the engine I believe. Although I'm not sure, but I know if it is too big you have to get your intake manifold bored out as well. I would think this would be around the last mod one would complete.

Stillen just bores stock TB's & MAF's. Good if you want ove what is it...250+ whp? Not the best mod for the price if you are staying N/A. IMHO

Is there an echo in here? :p j/p! I agree, don't get it unless you have money to burn. Can anyone back up my point that you have to bore out the intake manifold. I just had a revelation, and I remembered it was the Nismo one, but do you have to do this for stillen/RC engineering/etc.?

are there any negative drawbacks to these parts if you dont have the intake manifold ported? I want to know if either of these pieces are messin' with my fuel mixture, MAF, or with my TPS. Yes... I do have them already installed, but they were on the car when I bought it.

chris