corsca track exhaust approx gains?

[adamlotus]

sorry to ask i know its been asked many times ,what is the approx rwhp gain from adding corsca track exhaust and leaving stock cats on?i tried looking for a video clip of what the system sounds like but was unable can someone please post a clip.
thanks

 

[DMan]

Corsa's web site quotes 15rwhp, 20rwtq - 2.5inch track system with stock cats.

When I talked to their tech line they said that's a low number, they see more like 20rwhp.

They quoted an additional 4-6rwhp with 3 inch and hi-flo aftermarket cats.

I did a baseline before I installed mine & am trying to get back for a differential pull, soon as I do in the next week I'll post results.

 

[adamlotus]

thnaks dave for your feedback

 

[viperflex]

Corsa's web site quotes 15rwhp, 20rwtq - 2.5inch track system with stock cats.

When I talked to their tech line they said that's a low number, they see more like 20rwhp.

They quoted an additional 4-6rwhp with 3 inch and hi-flo aftermarket cats.

I did a baseline before I installed mine & am trying to get back for a differential pull, soon as I do in the next week I'll post results.

DMan - Any new dyno numbers yet? Thanks

 

[DMan]

Funny you should ask, I just went this afternoon and snuck in a couple pulls.

I'm not thrilled, but the weather wasn't on my side & the numbers are uncorrected so the comparo isn't as scientific as I hoped. But here it is: 456rwhp / 487 rwtq.

Pete, the owner of the shop told me his dyno reads a little low, some folks get bummed by the results, so he felt the number were strong all things considering, it was pretty humid and warm ..blah blah. ;-)

The AF is pretty rich across half the rpm range, dipping to 11 & lower around peak hp.
Makes me wonder what a computer tune would do across the rpm range.

First decent Friday night I'll hit the track & see if I have a trap speed improvement.

Dave.