Coupons

Information

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All official coupons sent out, with the exception of monthly newsletters and special FaceBook groups, will be posted here for your use. Coupon codes are only valid through the listed dates and cannot be extended or combined with other coupons.

5 OFF

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Discount AUTOMATICALLY applies during checkout on the following items:

• All products

Active from 02/13/2023 till 02/14/2023

10 OFF

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Discounts AUTOMATICALLY applies during checkout on the following items:

• All Warranty Killer Performance branded products

Active from 02/13/2023 till 02/14/2023

15 OFF

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Discounts AUTOMATICALLY applies during checkout on the following items:

• Most tuning products
• Clutch Technical Support

Active from 02/13/2023 till 02/14/2023

50 OFF

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Discounts AUTOMATICALLY applies during checkout on the following items:

• WKP "Spartan Series" ECU Calibration (No New VIN)
• WKP "Spartan Series" ECU Calibration Bench Flash

Active from 02/13/2023 till 02/14/2023

50 OFF

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When buying any engine rebuild kit, use code BIGSAVE during checkout on the following items:

• All Big Bore Kits

Active from 12/09/2022 till 03/31/2023

20 OFF

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Discounts AUTOMATICALLY applies during checkout on the following items:

• All Big Bore Kits

Active from 03/06/2023 till 03/31/2023