Look for a safe average gains of approx. 20 to 25 Rwhp from a properly desgined Full replacement exhaust with mandrel bent tubing..

Don't ask me how I know...

Make sure you're dynoing it in 5th or 6th gear with SAE corrected numbers..

~ Joe Z

 

I had terrible results. 340-350hp.

Also looked like my AFR kept dipping way below 11 as of the car was going into octane safe mode.

Turns out the petrocanada 91 was seeing QAQC issues.

Will redyno with husky 94 after my exhaust install.

 

Of course we have a mandrel bender locally, we did 6 gear pulls and rev limiter hit so 5th gear is sweat spot, sae corrected only makes about few hp difference from dyno operated 6-10hp

 

But to make u happy let me know what I need to tell operator