AS04GT2

Yeah...the rasp is the lack of a resonator. You can get a huge 28" glasspack to get rid of all of the rasp though and they run about 30-ish bucks from a auto parts store.

Thanks man...not so simple because it is cammed and has a slew of other mods...see my cardomain for all of them here: http://www.cardomain.com/ride/2663693

But, it has Custom Welded Pacesetter Headers with a Catless 3" Downpipe, 3" U-Bend Delete, Stock GM Resonator, Custom 3" from the Resonator back to Flowmaster 40 Series Mufflers with 3" Roush Dual/Dual Outlet Tips.