What kind of mufflers?

Magnaflow are ok but Corsa is QUALITY the difference between the two is night and day So far I have had Monza tip muffler eliminators (they sucked) Cheap turbo mufflers (took off and sold on EBAY they SUCK to much resonation) Flowmaster- nice sound but had rust issues (they rusted out at the rear mounting point between the two tips were the bolt screw in, 3 inch hole within 1 1/2 years and my car is garaged winters Magnaflow- to much resonation at highway speed Running Borla right now(shorty headers to a testpipe, borla y and mufflers) very little resonation and great sound) My buddy has Corsa and wow I wish I had went that route before I bought the borla his car sounds SWEET hope this helps  more