MBRP 4" BLACK SERIES FILTER-BACK EXHAUST SYSTEM longer u-bolts are required

longer u-bolts are required

The Cognito 2-inch Block and U-Bolt Kit includes 2-inch tall powder coated semi-gloss black cast steel blocks and heavy-duty zinc plated U-bolts

7L Powerstroke 2017 Ford 6

6L LLY/LBZ Duramax 2008 Chevy 6

If you aren't sure

MBRP 4" BLACK SERIES FILTER-BACK EXHAUST SYSTEM longer u-bolts are requiredMBRP S6032BLK 4" BLACK SERIES FILTER BACK EXHAUST SYSTEM 2011 2019 GM 6. 6L DURAMAX (ALL CREW & EXT. CABS) The Best Systems Start with the Best Materials The MBRP S6032BLK 4" Black Series Filter Back Exhaust System for your 2011 2019 GM 6. 6L Duramax is built from heavy duty aluminized steel. Our Black Series performance exhaust systems offer a true "murdered out" style without compromising quality. With fully sealed seams to resist rust you can count