How do you drill out stock mufflers

[redrocket]

Mike,

Mine are drilled out and I'll never use them again, you want them?

Then you could have a back up if you end up not liking it.

Markus, if you don't give these away I'd be interested in taking them off your hands. Is there any need to remap?

My professional advice would be that any time you change a vehicle from it's out of the box OEM design, you should remap it.

Unprofessionally, a 12-minute will probably be fine but you should think about a remap, if nothing more, at least the TORs tune.

You're a professional what?

 

[REGULATOR]

when I first got my rocket, within a few weeks I couldn't stand how quiet it was, plus it felt a little choked up.. So I drilled out my pipes.

did 4 holes around the stock hole, went two plates deep:

didn't sound too bad, freed it up some