[FRSBRZGT86FAN]

Originally Posted by Clipdat

I don't know how this brand designed theirs, but the WORKS version of this design actually has a smaller internal exit hole for the driver's side exhaust pipe. Presumably in order to balance out the sound.

I would visually check with a flashlight to determine that both exit pipes are fully opened.

Originally Posted by dutchman1

I have a MRT muffler delete, dual exit. It's quite damaged from getting run over (long story). All the damage is on the right side of the exhaust, it's pinched flat.

I can simply cut the exhaust just to the right of the left side hangers and cap it, turning it into a single exit (as marked in picture). Question is would this hurt the performance of the exhaust at all? It looks to me like you'd still have plenty of flow, albeit the dead end would create a tiny bit of a bottleneck. I'm running an otherwise stock car with no tune (street class autocrosser so that's all I'm allowed). I was planning to switch to a single exit anyway.

I don't know a whole lot about how the exact shape of an exhaust impacts flow and sound. Thanks for any opinions.

Best bet is to weld in a vibrant resonator, or switching to an axleback that has a muffler. I had the berk muffler delete and it seems completely like yours, and I remember someone welding in a resonator in with good results.