View our Specials! Coupon Code: SaveIn2026
Looking to upgrade or modify your GMC Sierra 3500 with aftermarket parts from Diamond Eye Performance? At Tunersports.com we carry a great selection of their parts for your vehicle.
From exhaust, mufflers & tips, catback, exhaust, mufflers & tips or downpipes we have 30 parts available for your Sierra 3500, all with free shipping to the Continental US 48 States.
For more information on Diamond Eye Performance, you can visit the official Diamond Eye Performance website.
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit SS K5126SDiamond Eye KIT 5in CB SGL 409 SS: 2006-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 $688.11
|
 IN STOCK Diamond Eye Performance Catback Exhaust Kit AL K5126A-RPDiamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 $471.53
|
 IN STOCK Diamond Eye Performance Catback Exhaust Kit AL K4110ADiamond Eye KIT 4in CB SGL AL CHEVY/GMC 6.6L 2500/3500 01-05 $455.52
|
 IN STOCK - LOW Diamond Eye Performance Downpipe AL 321056Diamond Eye TURBO-DIRECT 3in AL CHEVY/GMC LLY LBZ LLM DURAMAX 04-10 $256.59
|
 OUT OF STOCK Diamond Eye Performance Downpipe AL 321055Diamond Eye TURBO-DIRECT 3in AL CHEVY LB7 DURAMAX 01-04 5 BTWN TURBO & F PIPE TRANS DIPSTICK MOD REQ $438.36
|
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit AL K5126S-RPDiamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 $565.50
|
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit AL K5126ADiamond Eye KIT 5in CB SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 $539.85
|
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit SS K4124S-RPDiamond Eye KIT 4in CB MFLR RPLCMENT PIPE DUAL SS: 2006-2007.5 CHEVY/GMC 6.6L 2500/3500 $739.40
|
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit SS K4124SDiamond Eye KIT 4in CB DUAL SS: 2006-2007.5 CHEVY/GMC 6.6L 2500/3500 $817.09
|
 OUT OF STOCK Diamond Eye Performance Catback Exhaust Kit AL K4124A-RPDiamond Eye KIT 4in CB MFLR REPLACMENT PIPE DUAL AL: 2006-2007.5 CHEVY/GMC 6.6L 2500/3500 $539.98
|
 IN STOCK Diamond Eye Performance Catback Exhaust Kit AL K4110A-RPDiamond Eye KIT 4in CB MFLR RPLCMENT PIPE SGL AL: 01-05 CHEVY/GMC 6.6L 2500/3500 $389.40
|
IN STOCK Diamond Eye Performance Catback Exhaust Kit AL K5126A-RPDiamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 $471.53
|
IN STOCK Diamond Eye Performance Catback Exhaust Kit AL K4110ADiamond Eye KIT 4in CB SGL AL CHEVY/GMC 6.6L 2500/3500 01-05 $455.52
|
IN STOCK - LOW Diamond Eye Performance Downpipe AL 321056Diamond Eye TURBO-DIRECT 3in AL CHEVY/GMC LLY LBZ LLM DURAMAX 04-10 $256.59
|
