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OCTOBER SALE

Use The Following Coupon Code At Checkout For More Savings On Many Items!

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Diamond Eye

(773 products)

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$424.64 off

Diamond Eye
Diamond Eye K4329A-RP - Turbo Back Exhaust 00-03.5 F450 4 Inch Single Pass No Muffler Aluminized Performance Series Diesel

Sale price $460⁹⁹ Regular price $885⁶³
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$420.40 off

Diamond Eye
Diamond Eye K4327A - Turbo Back Exhaust 00-03.5 F250/F350 Cab/Chassis 4 Inch Single In/Out Pass W/ Muffler Aluminized

Sale price $458⁹⁹ Regular price $879³⁹

Low stock (4 units)
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$420.40 off

Diamond Eye
Diamond Eye K4331A - Turbo Back Exhaust 00-03.5 F550 Rollover 4 Inch Single In/Out Pass With Muffler Aluminized

Sale price $458⁹⁹ Regular price $879³⁹

Very low stock (1 unit)
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$427.39 off

Diamond Eye
Diamond Eye K4331A-4 - KIT 4in TBSGL AL: 00-03 FORD 7.3L F550 ROLLOVER W/ PYROMETER PLUG

Sale price $483⁹⁹ Regular price $911³⁸
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$580.36 off

Diamond Eye
Diamond Eye K4321A-4 - KIT 4in TB DUAL AL: 00-03 FORD 7.3L F250/F350 W/ PYROMETER PLUG

Sale price $639⁹⁹ Regular price $1,220³⁵
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$680.29 off

Diamond Eye
Diamond Eye K4321S - Turbo Back Exhaust 00-03.5 F250/F350 4 inch Single In/Out Split Rear/Side W/ Muffler Stainless

Sale price $740⁹⁹ Regular price $1,421²⁸
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$530.07 off

Diamond Eye
Diamond Eye K4321A - Turbo Back Exhaust 00-03.5 Ford F250/F350 Superduty 4 Inch Split Rear/Side With Muffler Aluminum

Sale price $586⁹⁹ Regular price $1,117⁰⁶
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$525.27 off

Diamond Eye
Diamond Eye K4329A - Turbo Back Exhaust 00-03.5 F450 4 Inch Single In/Out Pass With Muffler Aluminized Diesel Exhaust

Sale price $529⁹⁹ Regular price $1,055²⁶

Very low stock (1 unit)
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$403.68 off

Diamond Eye
Diamond Eye K4384A-SS - 18-19 Ford 3.0L Powerstroke F150 - 4in Alum DPF Back Exh Kit Sprt Dual w/Tips 4512BRA-DE

Sale price $459⁹⁹ Regular price $863⁶⁷
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$385.34 off

Diamond Eye
Diamond Eye K4382S-BK - 18-19 Ford 3.0L Powerstroke F150 - 4in 409SS DPF Back Exhaust Kit w/ Tip 4512BRA-DEBK

Sale price $439⁹⁹ Regular price $825³³
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$385.34 off

Diamond Eye
Diamond Eye K4382S-SS - 18-19 Ford 3.0L Powerstroke F150 - 4in 409SS DPF Back Exhaust Kit w/ Tip 4512BRA-DE

Sale price $439⁹⁹ Regular price $825³³
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$440.00 off

Diamond Eye
Diamond Eye K4384S-BK - 18-19 Ford 3.0L Powrstrke F150 - 4in 409SS DPF Back Kit Sprt Dual w/Tips 4512BRA-DEBK

Sale price $495⁹⁹ Regular price $935⁹⁹
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$440.00 off

Diamond Eye
Diamond Eye K4384S-SS - 18-19 Ford 3.0L Powrstrke F150 - 4in 409SS DPF Back Kit Sprt Dual w/Tips 4512BRA-DE

Sale price $495⁹⁹ Regular price $935⁹⁹
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$322.45 off

Diamond Eye
Diamond Eye K4382A-BK - 18-19 Ford 3.0L Powerstroke F150 - 4in Alum DPF Back Exhaust Kit w/ Tip 4512BRA-DEBK

Sale price $376⁹⁹ Regular price $699⁴⁴
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$403.68 off

Diamond Eye
Diamond Eye K4384A-BK - 18-19 Ford 3.0L Pwrstrk F150 - 4in Alum DPF Back Exh Kit Sprt Dual w/Tips 4512BRA-DEBK

Sale price $459⁹⁹ Regular price $863⁶⁷
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$322.45 off

Diamond Eye
Diamond Eye K4382A-SS - 18-19 Ford 3.0L Powerstroke F150 - 4in Aluminized DPF Back Exhaust Kit w/ Tip 4512BRA-DE

Sale price $376⁹⁹ Regular price $699⁴⁴
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$609.99 off

Diamond Eye
Diamond Eye K5123S - Cat Back Exhaust System For 06-07 Silverado/Sierra 2500/3500 5 Inch Single Pass With Muffler Stainless

Sale price $669⁹⁹ Regular price $1,279⁹⁸
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$562.68 off

Diamond Eye
Diamond Eye K5131S - Filter Back Exhaust For 07.5-10 Silverado/Sierra 2500/3500 6.6L LMM 5 Inch Single Pass Stainless

Sale price $621⁹⁹ Regular price $1,184⁶⁷
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$542.57 off

Diamond Eye
Diamond Eye K5123A - Cat Back Exhaust System For 06-07 Silverado/Sierra 2500/3500 5 Inch Single Pass With Muffler Aluminized

Sale price $599⁹⁹ Regular price $1,142⁵⁶
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$531.54 off

Diamond Eye
Diamond Eye K5131A - Filter Back Exhaust For 07.5-10 Silverado/Sierra 2500/3500 6.6L LMM 5 Inch Single Pass Aluminized

Sale price $589⁹⁹ Regular price $1,121⁵³
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$541.51 off

Diamond Eye
Diamond Eye K4363S - DPF Back Exhaust For 08-10 Ford 6.4L Power Stoke F250/F350 4 Inch Single Passenger Side Stainless

Sale price $599⁹⁹ Regular price $1,141⁵⁰
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$433.84 off

Diamond Eye
Diamond Eye K4363A - DPF Back Exhaust For 08-10 Ford 6.4L Power Stoke F250/F350 4 Inch Single Passenger Side Aluminized

Sale price $489⁹⁹ Regular price $923⁸³
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$540.36 off

Diamond Eye
Diamond Eye K5123S-RP - Cat Back Exhaust System For 06-07 Silverado/Sierra 2500/3500 5 Inch Single Pass No Muffler Stainless

Sale price $597⁹⁹ Regular price $1,138³⁵
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$500.45 off

Diamond Eye
Diamond Eye K5123A-RP - KIT 5in CB MRP SGL w/ TDP AL 06-07 Chevy/GMC 6.6L Duramax 2500/3500

Sale price $557⁹⁹ Regular price $1,058⁴⁴
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$296.49 off

Diamond Eye
Diamond Eye K4379A - KIT 4in DPF-BACK SGL AL 2017 FORD 6.7L POWERSTROKE F250/350

Sale price $349⁹⁹ Regular price $646⁴⁸
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$373.80 off

Diamond Eye
Diamond Eye K4378S - KIT 4in DPF-BACK SGL AL 15-16 FORD POWERSTROKE 6.7L F250/F350

Sale price $401⁹⁹ Regular price $775⁷⁹

Very low stock (1 unit)
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$344.45 off

Diamond Eye
Diamond Eye K4379S - KIT 4in DPF-BACK SGL SS 2017 FORD 6.7L POWERSTROKE F250/350

Sale price $398⁹⁹ Regular price $743⁴⁴
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$296.50 off

Diamond Eye
Diamond Eye K4378A - KIT 4in DPF-BACK SGL AL 15-16 FORD POWERSTROKE 6.7L F250/F350

Sale price $349⁹⁹ Regular price $646⁴⁹
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$411.40 off

Diamond Eye
Diamond Eye K5126A - Cat Back Exhaust System 06-07.5 Silverado/Sierra 2500/3500 5 In. Single Pass Louvered W/ Muffler Aluminized

Sale price $467⁹⁹ Regular price $879³⁹
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$347.20 off

Diamond Eye
Diamond Eye K4360S - Filter Back Exhaust For 08-10 Ford F250/F350 Superduty 6.4L Powerstroke 4 inch Single Pass Stainless

Sale price $401⁹⁹ Regular price $749¹⁹
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$506.53 off

Diamond Eye
Diamond Eye K5216A - Turbo Back Exhaust 94-02 Dodge RAM 2500/3500 5 Inch Single In/Dual Out Pass With Muffler Aluminized

Sale price $562⁹⁹ Regular price $1,069⁵²
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$364.42 off

Diamond Eye
Diamond Eye K4376S - Filter Back Exhaust For 11-14 Ford F250/F350 Superduty 6.7L Powerstroke 4 Inch Single Pass Stainless

Sale price $419⁹⁹ Regular price $784⁴¹
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$488.57 off

Diamond Eye
Diamond Eye K5126S - Cat Back Exhaust System For 06-07.5 Silverado/Sierra 2500/3500 5 Inch Single Pass With Muffler Stainless

Sale price $545⁹⁹ Regular price $1,034⁵⁶
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$362.87 off

Diamond Eye
Diamond Eye K5126A-RP - Cat Back Exhaust System 06-07.5 Silverado/Sierra 2500/3500 5 In. Single Pass Louvered No Muffler Aluminized

Sale price $400⁹⁹ Regular price $763⁸⁶

Low stock (4 units)
Compare

$397.78 off

Diamond Eye
Diamond Eye K5126S-RP - Cat Back Exhaust System For 06-07.5 Silverado/Sierra 2500/3500 5 Inch Single Pass No Muffler Stainless

Sale price $453⁹⁹ Regular price $851⁷⁷
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$388.42 off

Diamond Eye
Diamond Eye K5162A - Filter Back Exhaust For 11-12 Silverado/Sierra 2500/3500 6.6L Duramax 5 Inch Single Side Aluminized

Sale price $443⁹⁹ Regular price $832⁴¹
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$423.75 off

Diamond Eye
Diamond Eye K5134S - Filter Back Exhaust For 07.5-10 Silverado/Sierra 2500/3500 5 Inch Single Pass No Muffler Stainless

Sale price $478⁹⁹ Regular price $902⁷⁴
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$421.19 off

Diamond Eye
Diamond Eye K5162S - Filter Back Exhaust For 11-12 Silverado/Sierra 2500/3500 6.6L Duramax 5 Inch Single Side Stainless

Sale price $477⁹⁹ Regular price $899¹⁸
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$555.68 off

Diamond Eye
Diamond Eye K5216A-HX40 - KIT 5in CSTM TB HX40 DWNP 221040 SGL AL 94-02 CUMMINS 5 9L NO WARRANTY-CSTM KIT

Sale price $613⁹⁹ Regular price $1,169⁶⁷
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$389.31 off

Diamond Eye
Diamond Eye K5134A - Filter Back Exhaust For 07.5-10 Silverado/Sierra 2500/3500 Single Pass No Muffler 5 Inch Aluminized

Sale price $443⁹⁹ Regular price $833³⁰
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$455.19 off

Diamond Eye
Diamond Eye K4332A - Turbo Back Exhaust 00-03.5 Excursion 4 Inch Single Pass With Muffler Aluminized Diesel Exhaust

Sale price $485⁹⁹ Regular price $941¹⁸
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$295.64 off

Diamond Eye
Diamond Eye K4376A - Filter Back Exhaust For 11-14 Ford F250/F350 Superduty 6.7L 4 Inch Single Pass Aluminized

Sale price $330⁹⁹ Regular price $626⁶³

Low stock (2 units)
Compare

$596.90 off

Diamond Eye
Diamond Eye K4340S - Cat Back Exhaust System 03-07 Ford F250/F350 Superduty 6.0L 4 inch With Muffler Split Rear/Side Stainless

Sale price $638⁹⁹ Regular price $1,235⁸⁹

Low stock (2 units)
Compare

$527.07 off

Diamond Eye
Diamond Eye K4340S-RP - Cat Back Exhaust System For 03-07 Ford F250/F350 Superduty 6.0L 4 inch No Muffler Split Rear/Side Stainless

Sale price $583⁹⁹ Regular price $1,111⁰⁶
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$340.79 off

Diamond Eye
Diamond Eye K4354A - Cat Back Exhaust System 03-06 Excursion 6.0L 4 Inch With Muffler Aluminized Diesel Exhaust

Sale price $395⁹⁹ Regular price $736⁷⁸
Compare

$285.98 off

Diamond Eye
Diamond Eye K4354A-RP - Cat Back Exhaust System 03-06 Excursion 6.0L 4 Inch No Muffler Aluminized Performance Series Diesel Exhaust

Sale price $338⁹⁹ Regular price $624⁹⁷
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$471.23 off

Diamond Eye
Diamond Eye K4340A - Cat Back Exhaust System 03-07 Ford F250/F350 Superduty 6.0L 4 Inch With Muffler Split Rear/Side Aluminized

Sale price $526⁹⁹ Regular price $998²²
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$340.79 off

Diamond Eye
Diamond Eye K4338A - Cat Back Exhaust System For 03-07 Ford F250/F350 Superduty 6.0L 4 Inch With Muffler Single Pass Aluminized

Sale price $395⁹⁹ Regular price $736⁷⁸
Compare

$411.40 off

Diamond Eye
Diamond Eye K4338S - Cat Back Exhaust System For 03-07 Ford F250/F350 Superduty 6.0L 4 inch Single Side With Muffler Stainless

Sale price $467⁹⁹ Regular price $879³⁹
Compare

$354.87 off

Diamond Eye
Diamond Eye K4338S-RP - Cat Back Exhaust System For 03-07 Ford F250/F350 Superduty 6.0L 4 inch Single Side No Muffler Stainless

Sale price $408⁹⁹ Regular price $763⁸⁶

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