Any factory exhaust tip performance mufflers?

[billschroeder5842]

I'd like to add a bit of sound (not boy racer) but have not found any muffler that uses the same shape or dimension of factory exhaust tip?

Yes, I'm OCD, but I REALLY like the symmetry between the exhaust tip shape and the tail lights. Yes, It's my "my weird" but I can't mix and match shapes. My C3 was WAY easier as round tail light and round, single exhaust tips just worked.

I really like how the ZR1 looks from behind (That makes me an "*** man"?) and I'd hate to mess up the look. Are there any decent exhaust systems out there that use the same factory exhaust tips? If not has anyone modified a performance muffler using the factory tips?