Top speed axle back exhaust
 

Hey, so I'm looking into a top speed 1 axle back exhaust, something priced well and to give my car some more tone. How much HP would I get out of it? On average or exact, and how is that exhaust choice in particular ?

Thanks in advance !

Did you try searching the forums

I honestly don't think you'll get much hp/tq from an axleback but many have claimed difference in butt dyno so i guess you can go off of that.