Full 3inch exhaust, dyno to come - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

WHAMMO · 05-20-2020, 07:49 PM

I bought a new 3inch catback & X-pipe , that I will use with Z28 2 3/4'' mufflers, instead of my 2.5'' stock H-pipe and NPP.

I dyno'ed 568rwhp 2 weeks ago with a slipping clutch, hp not done climbing. I wonder what kind of gain I will see over the stock exhaust. My guesstimate is the car would have maybe done 575-580 peak.

I think 14whp+ with the 3''.

I will report back with dynosheet as soon as I get the exhaust. I went with chinese setup since SW wouldnt sell me just the X and crossover pipes, without mufflers. I did not find another complete system minus the mufflers. So be it..

05-20-2020, 07:49 PM	#1
WHAMMO Drives: 13' 1LE Join Date: Apr 2012 Location: Canada Posts: 2,642	Full 3inch exhaust, dyno to come I bought a new 3inch catback & X-pipe , that I will use with Z28 2 3/4'' mufflers, instead of my 2.5'' stock H-pipe and NPP. I dyno'ed 568rwhp 2 weeks ago with a slipping clutch, hp not done climbing. I wonder what kind of gain I will see over the stock exhaust. My guesstimate is the car would have maybe done 575-580 peak. I think 14whp+ with the 3''. I will report back with dynosheet as soon as I get the exhaust. I went with chinese setup since SW wouldnt sell me just the X and crossover pipes, without mufflers. I did not find another complete system minus the mufflers. So be it.. __________________ 13' 1LE Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me.