TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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I'd say 2 tenths from what I got from it (assuming my stock time was 15.6 and i gotta 15.4 w/ just the box and airfoil). I'd say don't 'count' on it being MUCH faster and you'll be pleased by the "butt-dyno", def FEELS stronger.
I just put it on yesterday (the SLP kit) for an 85tpi, really makes your engine sound better, it screams now at WOT. As for performance, it feels ever so slightly stronger, you won't really notice it but I can definitely tell you you'll hear the difference. Probably a good 5-10 hp depending on your mods, maybe more
[This message has been edited by Jono (edited August 04, 2001).]