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Diamond Eye

Diamond Eye

If you are seeking a striking look, feel and outstanding capabilities for your truck, augment your truck with exhaust systems, kits and components from Diamond Eye Performance.  Diamond Eye supplies affordable, easy to install exhaust modifiers that will make your truck stand out.  Diamond Eye components are compatible with Dodge Cummins, Ford Powerstroke, and Chevy Duramax diesel powered trucks.

Modified exhaust systems give your truck a powerful image and sound, while also improving the performance of your fuel and exhaust system.  Moving through a wider path, exhaust escape more easily, thereby increasing fuel economy and lowering EGTS.  By eliminating backpressure limiting your engine, you also enjoy enhanced horsepower and torque, as well as more responsive throttle.  Diamond Eye kits and components are made from high-quality aluminized steel and stainless steel with 1 to 6 year warranties to ensure your upgraded system performs precisely as it should.

Exhaust modifications are an ideal place to start modifying your truck, with noticeable differences in capability and performance.  Browse exhaust kits from Diamond Eyes Performance to find affordable kits for a variety of diesel trucks. 


IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in California. If you have any questions about other options, please give us a call or send us an e-mail, we'd be happy to help.

Brand: Diamond Eye Part Number: K5315A-RP
K5315A - FOR 1994, 1995, 1996 & EARLY 1997 - FORD 7.3L POWERSTROKE DIESEL F250/F350 (ALL CAB AND BED LENGTHS) - 5" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK (OFF-ROAD) SINGLE - 3" (2 PIECE) DOWN PIPE - INCLUDES OFF-ROAD PIPE (124007) NO MUFFLER INCLUDED! INSTRUCTION SHEET *NOTE: We..
$409.00 $549.40
Brand: Diamond Eye Part Number: 125034
125034 - FOR 2003, 2004, 2005, 2006 & 2007 - FORD 6.0L POWERSTROKE DIESEL F250/F350 - 3.5" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - OFF-ROAD CAT DELETE PIPE. OEM STYLE BALL AND SOCKET Off Road Use ONLY!! ***THIS PIPE IS DESIGNED AS A STAND ALONE OEM STOCK CATALYTIC CONVERTER OFF-ROAD REPLACEMENT..
$52.80 $76.16
Brand: Diamond Eye Part Number: K4209A-RP
KIT DOES NOT INCLUDE A MUFFLER!Features: *Increased Fuel Economy*NO MUFFLER*Lower EGTs *Mandrel Bent Tubing for Maximum Flow *Direct Fit *Increased Horsepower and Torque *Agressive Sound *Better Throttle Response *Easy Bolt-On Kits *Utilizes OEM Hangers *1-Year Limited Warranty on Aluminized kits *..
$322.45 $446.37
Brand: Diamond Eye Part Number: 220100
4 Inch, aluminized. Bolts on to the stock turbocharger. Diamond Eye: 220100IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in Cali..
$147.12 $173.17
Brand: Diamond Eye Part Number: 220099
4 Inch, Aluminized Bolts on to the stock turbocharger. Diamond Eye: A220099IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in Cali..
$96.49 $96.49
Brand: Diamond Eye Part Number: K4211A-RP
K4211A - 1989, 1990, 1991, 1992, 1993 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE NO MUFFLER, STRAIGHT THROUGH EXHAUST!! FITS 4x4 TRUCKS ONLY!Diamond Eye: K4211A-RP*NOTE: We can NO longer ship this part to Cali..
$314.25 $446.37
Brand: Diamond Eye Part Number: K4212A-RP
Performance Diesel Exhaust System: Turbo Back Single;NO MUFFLER 4" (Aluminized) for 1994 - 2002 Cummins 5.9LFits all bed & cab configurations. Diamond Eye Manufacturing is recognized for being one of the most modern and progressive companies based in Umatilla-County, Athena, Oregon. The company has..
$299.99 $388.60
Brand: Diamond Eye Part Number: K5216A-RP
Performance Diesel Exhaust System: Turbo Back Single 5" (Aluminized) for 1994 - 2002 Cummins 5.9LFits all bed & cab configurations.NO MUFFLER! Diamond Eye Manufacturing is recognized for being one of the most modern and progressive companies based in Umatilla-County, Athena, Oregon. The company has..
$377.28 $549.40
Brand: Diamond Eye Part Number: 220101
Overall length: 41 Inches Only fits 4x4 trucks.IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in California. If you have any quest..
$54.97 $59.00
Brand: Diamond Eye Part Number: 222011
Aluminized Second Section of 5 Inch Tail Pipe Around The Tire Out Of Kit number K5216A. Diamond Eye part number: 222011 IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternativ..
$80.95 $110.31
Brand: Diamond Eye Part Number: 125005
By Diamond Eye Overall length: 43.75 Inches IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in California. If you have any question..
$56.95 $56.95
Brand: Diamond Eye Part Number: 221043
221043 - FOR 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 & 2002 - DODGE 5.9L CUMMINS DIESEL 2500/3500 - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - 221040 HX40 TURBO DIRECT PIPE & VC400HX40 V-BAND CLAMP. 4" flat flange downpipe with HX40 v-band clamp. This pipe is aluminized. This item CANNOT..
$142.22 $165.18
Brand: Diamond Eye Part Number: 165034
165034 - FOR 2003, 2004, 2005, 2006 & 2007 - FORD 6.0L POWERSTROKE DIESEL F250/F350 - 3.5" T409 STAINLESS STEEL - PERFORMANCE DIESEL EXHAUST - OFF-ROAD CAT DELETE PIPE. OEM STYLE BALL AND SOCKET Off Road Use ONLY! ***THIS PIPE IS DESIGNED AS A STAND ALONE OEM STOCK CATALYTIC CONVERTER OFF-ROAD RE..
$62.39
Brand: Diamond Eye Part Number: 124005
124005 - FOR 1994, 1995, 1996 & EARLY 1997 - FORD 7.3L POWERSTROKE DIESEL F250/F350 - 3.5" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - OFF-ROAD PIPEFor those customers that use their truck in off-road events, we also have an aluminized steel catalytic converter delete pipe. It slips in place of the or..
$56.00
Brand: Diamond Eye Part Number: 220105
DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS - 4x4 APPLICATIONS ONLY)  4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - DOWNPIPE WITH HX40 TURBO FLANGEIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a loo..
$122.25
Brand: Diamond Eye Part Number: K4212A
Performance Diesel Exhaust System: Turbo Back Single 4" (Aluminized) for 1994 - 2002 Cummins 5.9LFits all bed & cab configurations. Diamond Eye Manufacturing is recognized for being one of the most modern and progressive companies based in Umatilla-County, Athena, Oregon. The company has taken cons..
$311.69 $442.20
Brand: Diamond Eye Part Number: 221001
Diamond Eye 94-02 Dodge Cummins 5.9L Aluminized Down Pipe For stock turbo applications only. Part number: 221001IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from o..
$92.00 $109.72
Brand: Diamond Eye Part Number: K5322A-RP
1999, 2000, 2001, 2002 & EARLY 2003 - FORD 7.3L POWERSTROKE DIESEL F250/F350 (ALL CAB AND BED LENGTHS) - 5" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE - 4" DOWN PIPE DOES NOT INCLUDE MUFFLER!*NOTE: We can NO longer ship this part to California, sorry for any inconvenience..
$429.00 $554.58
Brand: Diamond Eye Part Number: 222010
This is the first piece of tailpipe, goes to muffler or muffler delete. Diamond Eye part number:  222010IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other..
$76.35 $103.75
Brand: Diamond Eye Part Number: 222009
Aluminized First Section of 5 Inch Tail Pipe Around The Tire Out Of Kit# K5216A Diamond Eye part number: 222009 IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from ..
$75.65 $116.36
Brand: Diamond Eye Part Number: K5238A-RP
K5238A - 2004.5, 2005, 2006 EARLY 2007 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 5" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK (OFF-ROAD) SINGLE - FEATURES TRUE 5" DOWN PIPE - NO MUFFLER INSTRUCTION SHEET Features: *Increased Fuel Economy *Lower EGTs *Mandrel..
$407.95 $549.40
Brand: Diamond Eye Part Number: K4346A-RP
K4346A - FOR 2003.5, 2004, 2005, 2006 & 2007 - FORD 6.0L POWERSTROKE DIESEL F250/F350 (ALL CAB AND BED LENGTHS - AUTOMATIC TRANSMISSION APPLICATIONS ONLY) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK (OFF-ROAD) SINGLENo muffler included!A 4 inch down pipe is utilized, this system is..
$278.91 $388.60
Brand: Diamond Eye Part Number: 221040
Dodge 94-2002 Cummins HX40, Turbo 4" DownpipeFits the HTT HTB line of turbos, along with HX40 turbos. 4" flat flange downpipe. Does not include clamps! This pipe is aluminized.IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to Califo..
$95.95 $124.00
Brand: Diamond Eye Part Number: 221004
There are 2 sections to the tailpipe.  The Second Section part number is 221005. Image May NOT be Actual Part IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from othe..
$63.25
Brand: Diamond Eye Part Number: 445054
Diamond Eye part number:  445054IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in California. If you have any questions about other..
$15.75
Brand: Diamond Eye Part Number: K4212A-TD
K4212A-TD - FOR 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 & 2002 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK TURN DOWN SINGLEEXITS BEHIND THE REAR AXLE TOWARDS THE GROUNDIMPORTANT NOTE: Due to varying laws and reg..
$318.16 $452.77
Brand: Diamond Eye Part Number: 221005
There are two sections of this tail pipe this is the second section ONLY. The first section is part #221004. Image May NOT be Actual Part  IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selecti..
$54.95 $60.04
Brand: Diamond Eye Part Number: 321099
FOR 1993., 1994, 1995, 1996, 1997, 1998, 1999 & 2000- Chevy 6.5l diesel 2500/3500 - 2.5" aluminized - performance diesel exhaust  - cross-over pipe - 2 piece design leave options for applications where the heads have been decked. Diamond Eye part number: 321099 *NOT FOR SALE IN STATES WITH C.A.R.B..
$99.57 $141.21
Brand: Diamond Eye Part Number: 5612BRA-DE
6 Inch Stainless Bolt-On Exhaust Tip 304 Stainless Steel 5 Inch Inlet, 6 Inch Outlet, 12" Long Bolt-On Rolled Angle Diamond Eye Performance Embossed Logo  IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at..
$54.00 $83.43
Brand: Diamond Eye Part Number: 220104
DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS - 2x4 APPLICATIONS ONLY)  4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - DOWNPIPE WITH HX40 TURBO FLANGEIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a loo..
$95.00 $99.00
Brand: Diamond Eye Part Number: 222052
Diamond Eye 5" Down-Pipe 04.5-07 5.9L Dodge (Aluminized)Part number:  222052IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection for alternatives from other manufacturers if you are in Calif..
$99.97
Brand: Diamond Eye Part Number: K4214A-RP
K4214A - FOR 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 & 2002 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK DUAL-NO Muffler NO MUFFLER INSTRUCTION SHEET Performance Diesel Exhaust System: Turbo Back Dual System 4..
$402.09 $589.97
Brand: Diamond Eye Part Number: A405040
40 inch piece of 5 inch pipe, ID on one end to slide OVER 5 inch pipe, and 5 inch OD on the other end. Diamond Eye part number:  A405040IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection ..
$69.79 $75.10
Brand: Diamond Eye Part Number: 510216
510216 - FOR 2004.5, 2005, 2006 & EARLY 2007 - DODGE 5.9L CUMMINS DIESEL 2500/3500 - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - OEM MUFFLER ELIMINATOR PIPE Will not work on 2004 305HP trucks! Check your valve cover for horsepower rating if you are unsure. Clamps not included. *NOTE: We can NO ..
$54.79 $54.79
Brand: Diamond Eye Part Number: K4212S
K4212S - FOR 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 & 2002 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" T409 STAINLESS STEEL - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE INSTRUCTION SHEET Performance Diesel Exhaust System: Turbo Back Single 4" (Stainless) fo..
$414.95 $559.92
Brand: Diamond Eye Part Number: K4235A
K4235A - 2004.5, 2005, 2006 EARLY 2007 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK (OFF-ROAD) SINGLE INSTRUCTION SHEET Features: *Increased Fuel Economy *Lower EGTs *Mandrel Bent Tubing for Maximum Flow *Direct Fit ..
$335.00 $442.20
Brand: Diamond Eye Part Number: K4211A
K4211A - 1989, 1990, 1991, 1992, 1993 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE Also available with an HX40 flange downpipe, select option above. This is for AFTERMARKET turbos only, it will NOT work with a s..
$361.10 $507.65
Brand: Diamond Eye Part Number: 51020x
4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST - MUFFLER REPLACEMENT PIPE - HIGH FLOW - STRAIGHT THROUGH  - 4" I.D. X 4" I.D. Comes in either 27" or 30" lengths. SEE BELOW FOR OPTIONSIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to Calif..
$43.25 $43.25
Brand: Diamond Eye Part Number: K4307A
K4307A - FOR 1994, 1995, 1996 & EARLY 1997 - FORD 7.3L POWERSTROKE DIESEL F250/F350 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK (OFF-ROAD) SINGLE - 3" (2 PIECE) DOWN PIPE - INCLUDES OFF-ROAD PIPE (124006) *NOTE: We can NO longer ship this part to Californ..
$350.29 $505.29
Brand: Diamond Eye Part Number: 5102xx
4" STAINLESS STEEL- PERFORMANCE DIESEL EXHAUST - MUFFLER REPLACEMENT PIPE - HIGH FLOW - STRAIGHT THROUGH  - 4" I.D. X 4" I.D. Comes in either 27" or 30" lengths.IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look ..
$41.95 $42.95
Brand: Diamond Eye Part Number: K5216A
Performance Diesel Exhaust System: Turbo Back Single 5" (Aluminized) for 1994 - 2002 Cummins 5.9LFits all bed & cab configurations. Diamond Eye Manufacturing is recognized for being one of the most modern and progressive companies based in Umatilla-County, Athena, Oregon. The company has taken cons..
$418.88 $617.41
Brand: Diamond Eye Part Number: 122004
The aluminized steel Diamond Eye down pipe for the 1994-1998 Ford Power Stroke is designed to eliminate the installation issues that have been associated with down pipes on first generation Power Strokes. The Diamond Eye two piece down pipe is manufactured to fit a large percentage of trucks without..
$118.00
Brand: Diamond Eye Part Number: 529020
4" aluminized performance mandrel bent universal 90 degree exhaust elbow.  4" i.d. X 4" o.d. 6" bend radius 4" legs Diamond Eye part number: 529020IMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our prod..
$43.78 $43.95
Brand: Diamond Eye Part Number: 164005
For those customers that use their truck in off road events we also have a 409 stainless steel catalytic converter delete pipe. It slips in place of the original equipment converter and installs onto the Diamond Eye down pipe. 3 Inch Ball Joint on Downpipe End, 3.5 Outlet on tail-pipe end.   The ..
$74.95 $74.95
Brand: Diamond Eye Part Number: K4318A
K4318A - FOR 1999, 2000, 2001, 2002 & EARLY 2003 - FORD 7.3L POWERSTROKE DIESEL F250/F350 (ALL CAB AND BED LENGTHS) - 4" ALUMINIZED - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE INSTRUCTION SHEETIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components..
$311.69 $442.20
Brand: Diamond Eye Part Number: 5612BRA-DEBK
BLACK POWER COATED DIAMOND EYE PERFORMANCE LOGO EMBOSSED STAINLESS STEEL TIP5" INLET 6" OUTLET 12" LONGPart number: 5612BRA-DEBKIMPORTANT NOTE: Due to varying laws and regulations, most Diamond Eye exhaust systems & components cannot ship to California. Take a look at our product selection..
$62.60
Brand: Diamond Eye Part Number: K4212S-RP
K4212S - FOR 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 & 2002 - DODGE 5.9L CUMMINS DIESEL 2500/3500 (ALL CAB AND BED LENGTHS) - 4" T409 STAINLESS STEEL - PERFORMANCE DIESEL EXHAUST KIT - TURBO BACK SINGLE -NO Muffler NO Muffler INSTRUCTION SHEET Performance Diesel Exhaust System: Turbo Back..
$368.53 $535.09
Brand: Diamond Eye Part Number: 162004
The 409 stainless steel Diamond Eye down pipe for the 1994-1998 Power Stroke is designed to eliminate the installation issues that have been associated with down pipes on first generation Power Strokes. The Diamond Eye two piece down pipe is manufactured to fit a large percentage of trucks without h..
$119.00
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