2.5 complete exhaust VS a 3.0 complete exhaust

412 Stroker said

Well I realize this is a MOPAR forum, but I couldn't find a comparison using a mopar so here is one using a 5.0 Phord motor.
The bottom one is from Car Craft also with a Phord. I have a 2.5 with an H pipe in my stroker exiting under the bumper, my .02.

Click to expand...

I plotted the top chart, it has the curves of a pickup truck motor, and a dog at that. There's a clear emphasis on torque, and the hp falls off very early. Oddly, the X-pipe shows solid gains immediately after the 5454 crossover.

The bottom chart is worthless. Too many variables and not enough for statistical analysis.