Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. Removal of OEM catalytic converters may be a violation of emissions laws in your jurisdiction. Ensure that the intended use of this product is permitted. Not for sale or use in the state of California.
Features:| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2011 - 2015 | Chevrolet | Express 2500 | Base | ||
| 2011 - 2015 | Chevrolet | Express 3500 | Base | ||
| 2011 - 2015 | Chevrolet | Express 3500 | LS | ||
| 2011 - 2015 | Chevrolet | Express 3500 | LT | ||
| 2011 - 2015 | Chevrolet | Silverado 2500 HD | LTZ | ||
| 2011 - 2015 | Chevrolet | Silverado 2500 HD | LT | ||
| 2011 - 2015 | Chevrolet | Silverado 2500 HD | WT | ||
| 2015 - 2015 | Chevrolet | Silverado 2500 HD | High Country | ||
| 2011 - 2015 | Chevrolet | Silverado 3500 HD | WT | ||
| 2011 - 2015 | Chevrolet | Silverado 3500 HD | LT | ||
| 2011 - 2015 | Chevrolet | Silverado 3500 HD | LTZ | ||
| 2015 - 2015 | Chevrolet | Silverado 3500 HD | High Country | ||
| 2011 - 2015 | GMC | Savana 2500 | Base | ||
| 2011 - 2015 | GMC | Savana 3500 | Base | ||
| 2011 - 2015 | GMC | Savana 3500 | LS | ||
| 2011 - 2015 | GMC | Savana 3500 | LT | ||
| 2011 - 2015 | GMC | Sierra 2500 HD | Denali | ||
| 2011 - 2015 | GMC | Sierra 2500 HD | SLE | ||
| 2011 - 2015 | GMC | Sierra 2500 HD | SLT | ||
| 2011 - 2014 | GMC | Sierra 2500 HD | WT | ||
| 2015 - 2015 | GMC | Sierra 2500 HD | Base | ||
| 2011 - 2014 | GMC | Sierra 3500 HD | WT | ||
| 2011 - 2015 | GMC | Sierra 3500 HD | SLT | ||
| 2011 - 2015 | GMC | Sierra 3500 HD | SLE | ||
| 2011 - 2015 | GMC | Sierra 3500 HD | Denali | ||
| 2015 - 2015 | GMC | Sierra 3500 HD | Base |
IN STOCK MBRP GMCA428MBRP Down Pipe BLK MBRP 15-16 Chevy/GMC 6.6L Duramax 3in Down Pipe (For 3 Bolt Flange Style Connection) $294.99
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$289.99
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IN STOCK MBRP S6032ALMBRP DPF Back Exhaust AL MBRP 11 Chev/GMC 2500/3500 4in Filter Back Single Side Aluminum Exhaust System $399.99
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IN STOCK MBRP S5076ALMBRP Catback Exhaust AL MBRP 11-19 Chevy/GMC 2500HD PU 6.0L V8 Single Side Exit Alum Cat Back Perf Exhaust $574.99
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IN STOCK - LOW BD Diesel 1041400BD Diesel Exhaust Manifolds BD Diesel Exhaust Manifold Kit - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8 $593.95
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IN STOCK - LOW Magnaflow 21-252Magnaflow Converter Direct Fit MagnaFlow Conv Direct Fit 11-16 Chevrolet Silverado 2500HD/3500HD / GMC Sierra 2500HD/3500HD $1,010.00
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IN STOCK - LOW MBRP S60360ALMBRP DPF Back Exhaust AL MBRP 11-18 Chevy/GMC 2500/3500 5in Filter Back Single Side Aluminum Exhaust System $489.99
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IN STOCK BD Diesel 1041402BD Diesel Exhaust Manifolds BD Diesel Driver Side Exhaust Manifold - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8 |
IN STOCK MBRP T5154BLKMBRP Univ Exhaust Tips BLK MBRP Universal Tip 6in OD 5in Inlet 15.5in Length 30 Deg Bend Angled Rolled End Black $169.99
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IN STOCK aFe 46-40024aFe Bladerunner Man & acc. aFe Power BladeRunner Ported Ductile Iron Exhaust Manifold 01-16 GM Diesel Trucks V8-6.6L (td) $689.00
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For more information on MBRP part number GMCA427, you can visit the official MBRP website.