NPP Gains
Thread Starter
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
NPP Gains
My car has A Vortech T Trim, LG Pros and stock exhaust. The NPP system is said to give an additional 6 hp on a stock motor. Im thinking the gains would be a little better for a blower car. I might do the NPP for just the sound itself but HP gains are always welcome. Does anyone now what the actual gains would be? Thanks.
Thread Starter
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
Thanks for the reply, but I have my mind set on the NPP if I do anything at all. I want the option of quieting the sound. My question is, what HP gains would there be in a car with my mods and the NPP?
Le Mans Master
Joined: Dec 2005
Posts: 6,999
Likes: 1,685
From: Southeast TX
I'd bet your gains would be 10+ on a blown car with no cats. There's a lot more exhaust going through the system at WOT on a blown car vs a stocker. My vette is at 465 rwhp N/A and the difference is 20 hp closed vs open on the NPP's. I think the stock mufflers are more free flowing than closed NPP's, but not near as good as open NPP's.
