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Looking for aftermarket parts to modify or upgrade your GMC Sierra 2500 HD with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories.
 OUT OF STOCK K4127A-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB MRP SGL w/ TDP AL 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $576.57 |
 OUT OF STOCK K5123ADiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CBSGL w/ TDP AL 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $700.99 |
 OUT OF STOCK K5123A-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB MRP SGL w/ TDP AL 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $651.24 |
 OUT OF STOCK K5126ADiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $539.85 |
 IN STOCK K5126A-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $471.53 |
 OUT OF STOCK K5126S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $565.50 |
 OUT OF STOCK K4110SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL SS CHEVY/GMC 6.6L 2500/3500 01-05 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $588.70 |
 OUT OF STOCK K4110S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL MFLR RPLCMENT PIPE SS 01-05 CHEVY/GMC 6.6L 2500/3500 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $509.18 |
 OUT OF STOCK K4120SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CBSGL w/ TDP SS 04-05 Chevy/GMC 6.6L Duramax 2500/3500 2004-2005 GMC Sierra 2500 HD Base / SLE / SLT / WT $776.91 |
 OUT OF STOCK K4120S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB MRP SGL w/ TDP SS 04-05 Chevy/GMC 6.6L Duramax 2500/3500 2004-2005 GMC Sierra 2500 HD Base / SLE / SLT / WT $703.41 |
 OUT OF STOCK K4122SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL SS CHEVY/GMC 6.6L 2500/3500 2006-2007.5 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $588.70 |
 OUT OF STOCK K4122S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL MFLR RPLCMENT PIPE SS CHEVY/GMC 6.6L 2500/3500 2006-2007.5 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $509.18 |
 OUT OF STOCK K4124SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB DUAL SS: 2006-2007.5 CHEVY/GMC 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $817.09 |
 OUT OF STOCK K4124S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB MFLR RPLCMENT PIPE DUAL SS: 2006-2007.5 CHEVY/GMC 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $739.40 |
 OUT OF STOCK K4127SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CBSGL w/ TDP SS 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $776.91 |
 OUT OF STOCK K4127S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB MRP SGL w/ TDP SS 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $703.41 |
 OUT OF STOCK K5123SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CBSGL w/ TDP SS 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $845.34 |
 OUT OF STOCK K5123S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB MRP SGL w/ TDP SS 06-07 Chevy/GMC 6.6L Duramax 2500/3500 2006-2006 GMC Sierra 2500 HD SL / SLE / SLT / WT $754.60 |
 OUT OF STOCK K5126SDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB SGL 409 SS: 2006-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $688.11 |
 SHIPS FROM MANUFACTURER 5009For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 02-05 Chevrolet Silverado 2500 HD Base 6.0L 2.5in Cat-Back Dual Extreme Exhaust - Aluminized 2002-2002 GMC Sierra 2500 HD SL 2002-2005 GMC Sierra 2500 HD Base 2002-2006 GMC Sierra 2500 HD SLE / SLT 2004-2006 GMC Sierra 2500 HD WT 2006-2006 GMC Sierra 2500 HD SL $646.29 |
 SHIPS FROM MANUFACTURER 5632For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 07-10 Chevrolet Silverado 2500 HD LT 6.0L 3in Cat-Back Dual Extreme Exhaust - Aluminized 2007-2010 GMC Sierra 2500 HD SLE / SLT / WT $660.76 |
 SHIPS FROM MANUFACTURER 5652For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in/3in Cat-Back Dual Extreme Exhaust - Aluminized 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT 2015-2019 GMC Sierra 2500 HD Base $704.76 |
 SHIPS FROM MANUFACTURER 65009For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 02-05 Chevrolet Silverado 2500 HD Base 6.0L 2.5in Cat-Back Dual Extreme Exhaust - Stainless 2002-2002 GMC Sierra 2500 HD SL 2002-2005 GMC Sierra 2500 HD Base 2002-2006 GMC Sierra 2500 HD SLE / SLT 2004-2006 GMC Sierra 2500 HD WT 2006-2006 GMC Sierra 2500 HD SL $772.54 |
 SHIPS FROM MANUFACTURER 65014For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 01-05 Chevrolet Silverado 2500 HD Base 6.0L 2.5in Cat-Back Dual Extreme Exhaust - Stainless 2001-2002 GMC Sierra 2500 HD SL 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2006 GMC Sierra 2500 HD WT 2006-2006 GMC Sierra 2500 HD SL $772.54 |
 SHIPS FROM MANUFACTURER 65017For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 01-05 Chevrolet Silverado 2500 HD Base 6.0L 2.5in Cat-Back Dual Extreme Exhaust - Stainless 2001-2002 GMC Sierra 2500 HD SL 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2006 GMC Sierra 2500 HD WT 2006-2006 GMC Sierra 2500 HD SL $772.54 |