Bad Info bud, Glass packs are lame and raspy, Go buy a Flowmaster 40 series off ebay for 50 bucks or get a OEM muffler at your auto parts store with a high flow cat and 2 inch pipe,
Says who?
A Cherry Bomb/glass pack will out flow a Flowmaster any day...straight through without any baffles or chambers to make the exhaust gases go through. If sound is all you care about than buy what you want but I'll keep buying my decent sounding $23 Cherry Bombs and leave the $85 poor flowing Flowmasters for you.
Flowmasters sound good but that's about it.
kicks, look into Magnaflows. You can get them in stainless steel for what a regular Flowmaster goes for and they're straight through so they flow far better than any baffled, chambered, S-curve, vented, etc etc etc mufflers.