I never tried them--those flow sounds, but i installed a set od the welded Thrushes on my friends Hemi Roadrunner with a full 2.5" system. God damn thing sounds like a good old fashioned muscle car idleing and a freakin prostocker when your on it---ok, maybe i am exagerating a little. But the bottom line is i was WAAYYY impressed with them and they sound good

. Of course being a 474 cu in hemi doesn't hurt.