Borla CrateMuffler Stock SBF 289/ 302/ FE BB 2.5 inch Offset/Offset 14in x 4.35in x 9in Oval Muffler 2011-gmc-sierra-1500-slt-esi9810738 25" diameter Axle-Back system delivers

25" diameter Axle-Back system delivers the classic S-Type sound with no drone inside the vehicle

Borla® exhaust systems are covered under our Million-Mile warranty with the following exceptions

3" Cat-Back(tm) Exhaust System

superior to T-409

5" round bright chrome on T-304 stainless steel tips on each tail pipe

Borla CrateMuffler Stock SBF 289/ 302/ FE BB 2.5 inch Offset/Offset 14in x 4.35in x 9in Oval Muffler 2011-gmc-sierra-1500-slt-esi9810738 25" diameter Axle-Back system deliversBORLA(r)'s CrateMuffler(r) is the world's first muffler purpose built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. This muffler is tuned for the Ford Small Block 289 302 (Exc. Coyote 5. 0L) 351W CID V8 & Big Block 390 427 428 460 CID V8 FE Serie engine families. The directional design provides the classic S Type sound and will