View our Specials! Coupon Code: SaveIn2026
Looking to upgrade or modify your GMC Sierra 2500 HD 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 dpf back we have 46 parts available for your Sierra 2500 HD, 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
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 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
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 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
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 IN STOCK - LOW Diamond Eye Performance Downpipe AL 321056Diamond Eye TURBO-DIRECT 3in AL CHEVY/GMC LLY LBZ LLM DURAMAX 04-10 $256.59
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 OUT OF STOCK Diamond Eye Performance DPF Back Exhaust Kit SS K5134SDiamond Eye KIT 5in DPF-BACK SGL SS 07.5-08 CHEVY 6 6L 2500/3500 PCKGD BX46X14X14OD EL-PL $553.66
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 OUT OF STOCK Diamond Eye Performance DPF Back Exhaust Kit SS K4130SDiamond Eye KIT 4in DPF-BACK SGL SS 07.5-10 CHEVY 6 6L 2500/3500 PCKGD BX46X14X14OD EL-PL $478.13
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 OUT OF STOCK Diamond Eye Performance DPF Back Exhaust Kit AL K4130ADiamond Eye KIT 4in DPF-BACK SGL AL 07.5-10 CHEVY 6 6L 2500/3500 PCKGD BX46X14X14OD EL-PL $386.46
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 OUT OF STOCK Diamond Eye Performance DPF Back Exhaust Kit AL K5134ADiamond Eye KIT 5in DPF-BACK SGL AL 07.5-08 CHEVY 6 6L 2500/3500 BPCKGD BX46X14X14OD EL-PL $512.60
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 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
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 OUT OF STOCK Diamond Eye Performance DPF Back Exhaust Kit SS K5162SDiamond Eye KIT 5in DPF-BACK SGL SS: 2011-2015 CHEVY 6.6L 2500/3500 $601.37
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 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
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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
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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
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IN STOCK - LOW Diamond Eye Performance Downpipe AL 321056Diamond Eye TURBO-DIRECT 3in AL CHEVY/GMC LLY LBZ LLM DURAMAX 04-10 $256.59
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