Originally Posted by Steve Hellums
I've not had my car to a track yet and all I have to gauge mod's that I've done is a G-tech meter. But I would just about be willing to take a bet that anyone with one of these home made tube's or pipes would not beat me by no more than 0.1 or 0.2 seconds in the 1/4 if they did beat me. And another factor in me putting my car against someone else's car with one of these tube's would be the size of a pulley upgrade, I don't know how much bigger some of the after market pulley's are than my Renntech pulley. And as far as popping the hood, I've had quite a few people ask me to pop my hood to see what's under there
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Form memory, haven;t you done the SL55 Y pipes like me ? I don't recon most of the other mods on the Air intake system will perform noticable better than this anyway. Once "on the go" you are forcing air into the system anyway, so the air filters are probably the main restriction then and I have K&N's fitted in the Stock boxes. I too prefer the Stock look and when I go for a servie, I will swap the Y pipe over in about 10 mins before it goes in. Along with running 99 ron petrol (UK) I recon this set up gives a nice improvement over standard......Also the sprint booster makes it far more exciting to drive.
Si