I can't seem to find the GRMTS test on the different Cooper exhaust systems dyno tests. Does anyone know where it is?

 

i'm not sure where it is, but i know that the helix exhaust got the best numbers!
http://www.helix13.com

i think i'm gonna get it soon.
do a search, some people on the board have their exhaust!

 

Yes I have read that but where is this test that it won? What was the hp gain? On the helix site it says 8hp with the intake. How about without? It would be interesting to see the difference with all that were tested.