I have a c6 6.2l ls3. I am having a Texas speed stage 3 cam, Texas speed long tube headers and hooker black heart axel back straight pipe exhaust installed. I also have a k and n on the car and it will be tuned. What would you estimate my whp would be ?

 

Welcome to the forum. I couldn't even guess but put it on a chassis dyno and find out for sure.

 

It will be dynotuned immediately after the installation of the parts. I was just asking for the sake of guessing.

 

Assuming you're going to update the ECM, my best guess would be 50 to 100hp worth with the aforementioned changes.

 

A6 or M6? It will make a difference, Okay I'll bite

A6 = 450

M6 460

 

A6 with a current baseline of 421.1 whp.

 

You don't know if you have an auto or man trans? My guess is that you might see @ 400 HP to the rear.

 

I just did the top end on my 2010 GS (springs, pushrods, lifters), with Kooks long tubes, cat & muffler delete, TSP stage 1 cam, Holley Intech CAI & dyno tuned for a gain of just under 100 HP. Its an A6 car.

 

I was just shy of a 100 whp gain. I need 2800-3200 stall converter still so it may actually be more once that’s installed and retuned. I’m also debating to go 3:73 or 4:10/4:11. I’m not sure what would produce better results.

 

So are you @ 520 now?