Flowmaster
Flowmaster 817603 | Exhaust System Kit
This stainless steel bolt on exhaust system for the 2011 to 2018 GMC and Chevrolet 1500, crew cab / short bed and extra cab / standard bed with 6.2L engine uses Flowmaster's 50 Series Big Block...
Flowmaster's American Thunder Crossmember-back exhaust system for the 73-87 GM C10/C20, ½ and 3/4 ton, 2WD pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This Crossmember-back DOR/DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2.50" mandrel bent aluminized tubing and accommodates both dual and single exhaust crossmembers. This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by Flowmaster's 3 Year Limited Warranty. This system is not emissions compliant on vehicles that were originally equipped with catalytic converters. Note: This system is not designed as a direct bolt-on and will require the user to fabricate pipes to connect to manifolds or headers.
Color | Black |
Exhaust Series | American Thunder |
Exhaust Type | Dual |
Exit Position | Dual Out Rear |
Exit Position | Dual Out Side |
Exit Style | Straight |
Inlet Diameter | 2.500 in. |
Inlet Inside Diameter | 2.500 in. |
Material | Aluminized Steel |
Mount Type | Flanged |
Muffler Count | 2 |
Muffler Series | Super 44 |
Muffler Type | Welded Baffle |
Outlet Diameter | 2.500 in. |
Outlet Outside Diameter | 2.500 in. |
Shape | Oval |
Single or Dual | Dual |
Sound Level | Moderate/Aggressive |
System Type | Header Back |
Tail Pipe Diameter | 2.500 in. |
Tip Diameter | N/A |
Title | Flowmaster 17742 Header-back 409S - American Thunder Kit - DOR/S - Mod/Agg Sound |
Tubing Diameter | 2.500 in. |
Tubing Material | Aluminized Steel |
WARNING CA Proposition 65 | No |