Raspy Exhaust

[ShelbySteve]

Have Mac long tubes and cats with borla axle back now. I had the Mac pro chamber deleted and straight piped and now it’s raspy af. I wanted it a bit louder but now it sounds like it has garbage glass packs about 2500 rpm. I’m new to mustangs so I’m curious if I need to have the Mac pro chamber put back on behind the cats or if adding an h pipe will reduce the raspiness.

 

[Dino Dino Bambino]

Reinstall the MAC Prochamber.

 

[06 T-RED S/C GT]

Have Mac long tubes and cats with borla axle back now. I had the Mac pro chamber deleted and straight piped and now it’s raspy af. I wanted it a bit louder but now it sounds like it has garbage glass packs about 2500 rpm. I’m new to mustangs so I’m curious if I need to have the Mac pro chamber put back on behind the cats or if adding an h pipe will reduce the raspiness.

If there was little to no rasp with the prochamber? put it back on. Anytime you run straight pipe or an X mid-pipe with high-flow cats, especially when running LT headers, you increase the higher sound levels of rasp. H-Pipes and prochambers on the other hand, produce deeper, lower sound level frequencies.

 

[07 Boss]

Or you could try mid mounting the mufflers. I think one of the reasons why our cars get that raspy tone is that there is not enough pipe between the muffler and the tip.

 

[ShelbySteve]

I put the Mac pro chamber back on. Rasp is gone again and now I know if I get rid of it to put an H pipe on it. Coming from a long time camaro owner I learned my lesson lol.