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Diamond Eye Performance - High-Quality Exhaust Systems

Norcal Diesel Performance proudly offers Diamond Eye Performance, a trusted name in aftermarket exhaust systems for diesel and gas trucks. Known for their precision-engineered exhaust kits, downpipes, and mufflers, Diamond Eye Performance products are designed to improve airflow, boost horsepower, and enhance fuel efficiency. Their exhaust systems are available in aluminized steel and stainless steel options, providing durability and performance tailored to your needs.

Manufactured in the USA with a commitment to quality, Diamond Eye Performance exhausts are rigorously tested to ensure optimal fitment and long-lasting reliability. Whether you’re upgrading your Cummins, Duramax, or Powerstroke engine for towing, racing, or daily driving, Norcal Diesel Performance offers a wide selection of Diamond Eye products to help you achieve peak performance. Explore our inventory today and experience the difference that Diamond Eye Performance can make!

Diamond Eye Performance Categories

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Items 1-30 of 30

1989-1993 Dodge Exhaust Parts

1989-1993 Dodge Exhaust Systems 12V Cummins

1994-1998 12V Cummins Exhaust Systems

1994-1998 12V Cummins Turbo Chargers & Components

1998.5-2002 Dodge 5.9L Exhaust

1998.5-2002 Dodge 5.9L Turbo Chargers & Components

2003-2007 Dodge 5.9L Exhaust Systems

2003-2007 Dodge 5.9L Exhaust Parts

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2014-2018 Ram Eco Diesel

4.0" Inlet Exhaust Tips

5.0" Inlet Exhaust Tips

6.4L Powerstroke Exhaust Parts

6.6L LB7 Exhaust Parts

6.6L LLY/LBZ Exhaust Parts

6.6L LLY Exhaust Parts

6.6L LMM Exhaust Systems

6.6L LMM Exhaust Parts

7.3L OBS Exhaust Parts

Down Pipes

Exhaust

Exhaust Parts

Exhaust Systems

Exhaust Tips

Exhaust Tips & Stacks

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Exhaust Tips & Stacks

GM 6.2L & 6.5L Exhaust Parts

Mufflers

Items 1-30 of 30

Diamond Eye Performance Products

Items 61-120 of 305

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Diamond Eye Performance -5in. ALUMINIZED 40in. Straight Bumped On One End - 405040

Exhaust Pipe

Price: $160.04

Sale: $88.01

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-5in. 409 STAINLESS STEEL PERFORMANCE ELBOW-5in. 529026

Exhaust Pipe

Price: $149.76

Sale: $88.97

Diamond Eye Performance TIP; BOLT-ON ROLLED ANGLE CUT; 4in. ID X 5in. OD X 12in. LONG; 304 ST 4512BRA-DE

Exhaust Tail Pipe Tip

Price: $151.90

Sale: $83.52

Diamond Eye Performance TIP; ROLLED ANGLE CUT; 5in. ID X 5in. OD X 12in. LONG; 304 STAINLESS 5512RA

Exhaust Tail Pipe Tip

Price: $151.47

Sale: $83.30

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Diamond Eye Performance 1994-EARLY 2007 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORMAN 221004

Exhaust Tail Pipe

Price: $143.29

Sale: $78.79

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL PERFORMANCE MUFFLER REP 510209

Exhaust Muffler

Price: $149.18

Sale: $82.04

Diamond Eye Performance - Exhaust Pipe 4 Inch 89-93 Dodge Dodge RAM 2500/3500 2X4 Only Second Section Pass Performance Series Exhaust Tail Pipe Diamond Eye

Exhaust Pipe 4 Inch 89-93 Dodge Dodge RAM 2500/3500 2X4 Only Second Section Pass Performance Series Exhaust Tail Pipe Diamond Eye

Price: $147.00

Sale: $80.84

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Diamond Eye Performance 1994-2007 FORD 7.3L-6.0L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS)-PERFORM 122025

Exhaust Tail Pipe

Price: $139.15

Sale: $76.52

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Diamond Eye Performance 1994-EARLY 2003 FORD 7.3L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS)-PERFOR 121026

Exhaust Tail Pipe

Price: $127.02

Sale: $69.85

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Diamond Eye Performance 1994-EARLY 2007 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORMAN 221005

Exhaust Tail Pipe

Price: $121.54

Sale: $72.20

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Diamond Eye Performance 2001-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORMAN 321052

Exhaust Tail Pipe

Price: $127.02

Sale: $69.85

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED 48in. STRAIGHT BUMPED ON ONE END 400048

Exhaust Pipe

Price: $128.51

Sale: $70.67

No Image Available

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-5in. ALUMINIZED PERFORMANCE ELBOW-5in. OD X 5in. 529025

Exhaust Pipe

Price: $120.27

Sale: $70.73

No Image Available

Diamond Eye Performance 2001-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORMAN 321051

Exhaust Tail Pipe

Price: $123.29

Sale: $67.80

Diamond Eye Performance 2003-EARLY 2004 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORMAN 510215

Exhaust Muffler

Price: $120.90

Sale: $66.49

Diamond Eye Performance 2004.5-EARLY 2007 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-PERFORM 510216

Exhaust Muffler

Price: $121.47

Sale: $66.80

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL PERFORMANCE ELBOW-4in. 529021

Exhaust Pipe

Price: $103.91

Sale: $61.72

Diamond Eye Performance 5in. Aluminized 24in. Long Straight 405024

Exhaust Pipe

Price: $93.10

Sale: $51.21

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL PERFORMANCE ELBOW-4in. 524521

Exhaust Pipe

Price: $96.94

Sale: $53.31

No Image Available

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED 24in. STRAIGHT BUMPED ON ONE END 400024

Exhaust Pipe

Price: $83.81

Sale: $46.09

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED PERFORMANCE MUFFLER REPLACEMENT 510205

Exhaust Muffler

Price: $83.22

Sale: $45.77

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-3.5in. ALUMINIZED PERFORMANCE ELBOW-3.5in. OD X 524510

Exhaust Pipe

Price: $78.90

Sale: $43.39

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Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED PERFORMANCE ELBOW-4in. OD X 4in. 524520

Exhaust Pipe

Price: $75.32

Sale: $41.42

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED PERFORMANCE MUFFLER REPLACEMENT 510204

Exhaust Muffler

Price: $79.54

Sale: $43.74

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-2.75in. 409 STAINLESS STEEL TORCA LAP-JOINT CLAMP L27SA

Exhaust Clamp

Price: $54.34

Sale: $31.95

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. 409 STAINLESS STEEL TORCA LAP-JOINT CLAMP L40SA

Exhaust Clamp

Price: $57.98

Sale: $31.89

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED TORCA LAP-JOINT CLAMP L40AA

Exhaust Clamp

Price: $42.16

Sale: $23.18

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-3in. ALUMINIZED TORCA BAND CLAMP BC300A

Exhaust Clamp

Price: $23.13

Sale: $12.72

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ALUMINIZED TORCA BAND CLAMP BC400A

Exhaust Clamp

Price: $26.49

Sale: $14.57

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-5in. ZINC COATED U-BOLT SADDLE CLAMP 454003

Exhaust Clamp

Price: $26.52

Sale: $14.58

Diamond Eye Performance, 3.5" TORCA BAND CLAMP - ALUMINIZED - BC350A

Exhaust Clamp

Price: $23.98

Sale: $13.20

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-3.5in. STANDARD STEEL U-BOLT SADDLE CLAMP 444001

Exhaust Clamp

Price: $17.87

Sale: $9.83

Diamond Eye Performance PERFORMANCE DIESEL EXHAUST PART-4in. ZINC COATED U-BOLT SADDLE CLAMP 454000

Exhaust Clamp

Price: $20.07

Sale: $11.04

Diamond Eye Performance 1994-1997.5 FORD 7.3L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS) 4in. 409 S K4308S

Exhaust System Kit

Price: $1,847.66

Sale: $1,016.05

Diamond Eye Performance 1994-2002 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-4in. 409 STAINL K4214S

Exhaust System Kit

Price: $1,847.66

Sale: $1,016.05

Diamond Eye Performance 1994-1997.5 FORD 7.3L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS) 4in. 409 S K4308S-RP

Exhaust System Kit

Price: $1,679.10

Sale: $923.35

Diamond Eye Performance 1994-2002 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-4in. 409 STAINL K4214S-RP

Exhaust System Kit

Price: $1,679.10

Sale: $923.35

Diamond Eye Performance 2006-2007 CHEVY 6.6L LBZ DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-5in. SS K5123S

Exhaust System Kit

Price: $1,663.97

Sale: $915.03

Diamond Eye Performance 2006-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 (ALL CAB AND BED LENGTHS) 4in. 409 K4124S

Exhaust System Kit

Price: $1,606.66

Sale: $883.53

Diamond Eye Performance 2004-2005 CHEVY 6.6L LLY DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-4in. SS K4120S

Exhaust System Kit

Price: $1,525.12

Sale: $838.67

Diamond Eye Performance 2006-2007 CHEVY 6.6L LBZ DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-4in. SS K4127S

Exhaust System Kit

Price: $1,525.12

Sale: $838.67

Diamond Eye Performance 2008-2010 FORD 6.4L Pwr Stroke F250/F350-5in. Stainless Steel K5371S

Exhaust System Kit

Price: $1,519.46

Sale: $835.57

Diamond Eye Performance 2015-2016 CHEVY 1500 4.3L & 5.3L 3" STAINLESS CAT BACK DUAL K3126S

Exhaust System Kit

Price: $1,514.79

Sale: $832.99

Cat Back Exhaust System Single In/Dual Out 04.5-07 Dodge RAM 2500/3500 4 inch No Muffler409 Stainless Diamond Eye

Price: $1,444.38

Sale: $794.29

Diamond Eye 4" Turbo Back Exhaust w/ Turn Down for 99-03 Ford F250/F350 7.3L - K4318A-TD

Exhaust System Kit

Price: $784.32

Diamond Eye Performance 1994-1997.5 FORD 7.3L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS) 4in. 409 S K4312S-RP

Exhaust System Kit

Price: $1,444.38

Sale: $794.29

Diamond Eye 2007.5-2010 Chevy/GMC 6.6L LMM Duarmax 2500/3500 5in. SS K5131S

Exhaust System Kit

Price: $1,421.60

Sale: $781.76

Diamond Eye Performance 1999-2003.5 FORD 7.3L POWERSTROKE F250/F350 (ALL CAB AND BED LENGTHS) 4in. 409 S K4320S

Exhaust System Kit

Price: $781.74

Turbo Back Exhaust 89-93 Dodge RAM 2500/3500 5.9L Cummins 2X4 4 Inch Stainless Turbo Back Single Hx40 DPF Diamond Eye

Price: $1,416.04

Sale: $778.71

Diamond Eye 2008-2010 FORD 6.4L Pwr Stroke F250/F350-4in. Stainless Steel - K4363S

Exhaust System Kit

Price: $1,369.80

Sale: $753.27

Diamond Eye 2008-2010 FORD 6.4L Pwr Stroke F250/F350-5in. ALUMIN K5371A

Exhaust System Kit

Price: $1,356.93

Sale: $746.20

Diamond Eye Performance 1994-2002 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-4in. ALUMINIZED K4214A

Exhaust System Kit

Price: $1,340.47

Sale: $737.14

Diamond Eye Performance 2006-2007.5 CHEVY/GMC 6.6L DURAMAX 2500/3500 (ALL CAB AND BED LENGTHS) 5in. 409 K5126S

Exhaust System Kit

Price: $1,344.93

Sale: $739.60

Diamond Eye Performance 2007.5-2010 CHEVY 6.6L LMM DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-4in. SS K4129S

Exhaust System Kit

Price: $1,332.94

Sale: $733.00

Diamond Eye Performance 2007.5-2010 CHEVY 6.6L LMM DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-5in. ALUM K5131A

Exhaust System Kit

Price: $1,345.84

Sale: $740.10

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Diamond Eye Performance 2014 RAM 3.0L ECO-DIESEL 1500 3" DPF BACK DUAL 409 STAINLESS K3264S

Exhaust System Kit

Price: $1,337.91

Sale: $735.74

Diamond Eye Performance 1989-1993 DODGE 5.9L CUMMINS 2500/3500 4X4 4" STAINLESS TURBO BACK SINGLE K4211S

Exhaust System Kit

Price: $1,315.41

Sale: $723.36

Diamond Eye Performance 1994-2002 DODGE 5.9L CUMMINS 2500/3500 (ALL CAB AND BED LENGTHS)-5in. ALUMINIZED K5216A

Exhaust System Kit

Price: $1,283.43

Sale: $705.77

Diamond Eye 1994-2002 Dodge 5.9L Cummins 2500/3500-4in. 409 Stainless Steel K4212S

Exhaust System Kit

Price: $1,260.90

Sale: $693.37

Diamond Eye Performance 2004-2005 CHEVY 6.6L LLY DURAMAX 2500/3500 (ALL CAB AND BED LENGHTS)-4in. ALUMIN K4120A

Exhaust System Kit

Price: $1,252.27

Sale: $688.65

Items 61-120 of 305

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