sorry ladies and gentlemen to bother you but i had a really quick question which one is better for performance ATLP quad exhaust or Magnaflow quad exhaust? i need to know so i can get to work thanks

 

I am assuming MagnaFlow would just be the mufflers on OEM catback piping.. so i would say ATLP.. it proved more HP on a dyno then the Comptech did... something like 10hp/11tq on a 6spd.

i have it, i noticed the gains, and i love it

 

Have you tried looking at each companies website and calling them to ask about dyno results for your particular car? and what comes with each kit?

 

I don't think anyone else in this forum has even tried putting the magna-flow's on. You could be the first. If you do, provide us with the before and after dyno results (same dyno please).

 

ib18c1 and TheWander have installed those mufflers

 

I swapped mufflers using stock tubing and didnt feel much gains, with the greddy evo2 I did feel the gains immedietly, tubing diameter and mandrel bends add alot