LS1 Camaro with ARH 1-3/4 LT's & catted y-pipe, GMMG catback & Magnaflow bullet muffler. Still too much rasp even after the bullet was fitted....

LS1 Camaro with ARH 1-3/4 LT's & catted y-pipe, GMMG catback & Magnaflow bullet muffler. Still too much rasp even after the bullet was fitted....

LS1 Camaro with ARH 1-3/4 LT's & catted y-pipe, GMMG catback & Magnaflow bullet muffler. Still too much rasp even after the bullet was fitted....

GMMG Exhaust on a stock LS1. Video doesn't do it justice.

Soulper4mance Crew member Delvin's 00 Ws6. Cammed, heads, mac headers and gmmg Exhaust. visit us at: www.soulper4mance.com for your LS1 parts at great pricing!.

02 Z28, LS1, LS6 heads 243 casting, throttel body, etc hooker header's, cat delete GMMG, cold start

Grudge Match between Both of HSS LS1 F-Bodys Camaro Mods: Drag Radials, LS6 Intake, SLP Lid, Longtubes, OR-Y, GMMG Catback, and tune WS6 Mods- Longtubes,...

Here is my cousin's ls1 camaro ss. Mods: Dynatech Supermaxx Longtube headers, GMMG Exhaust, Cams, Nitrous Tune, twin disc clutch, the list goes on

Video/audio of a GMMG cat-back exhaust on a 2002 Firebird Formula (5.7L LS1)

This combo wound up putting down 421rwhp and 409ftlbs torque.. Mods: Fast Toys Ram Air LS1 Motorsports Lid Ported TB FAST Intake PowerBond UD Pulley...