How would you partially gut this Exhaust

[Danp]

Hey Guys,

Debating whether to gut my stock exhaust or buy an aftermarket one. I'm wondering if anybody has gutted this particular one. It's from a 2012 ASW carbide 150cc. Looking inside with a flash light, I can see a plate about 3 inches back from the exhaust exit. This plate has four 3/8" holes in it, and behind the place I can that wire mesh baffle stuff also.

Anybody have good results by simply drilling it, or should just the exit hole itself be enlarged? Right now it's 1" wide.

[Miamieddie]

I cut the end piece off ripped everything out including the hart . And welded the end piece back on. You need a welder for this. ... or drill a 3/8 hole at 12 oclock 4 and 8 oclock around the outlet. If you want more than drill more holes around in a uniform fashion.