I'm currently running a 2.25 in mandrel bent midpipe with a stock axle back exhaust. (took out the tanabe racing medallion b/c of hassle from cops). I was just curious as to how much power i am losing due to the smaller diameter and the less exhaust flow from the stock muffler. If anyone has any dyno charts, that would be extremely helpful. I am currently deciding if it is worth it to slap on another axle back for some gains, or if i should leave it stock so the cops won't give me a second glance as i pass then. Thanks for the responses

 

The axle back should cancel out any power gains you aquired with the cat back. its like turning 5 freeway into a single lane road @ 5pm on a friday.

 

heh thanks for the analogy.