Featuring silver fine wire center electrode - Superior ignition ability increases engine power!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Three heat ranges colder than stock with a non-projected tip
Brand:
ES#:
3663889
Mfg#:
ER10S
In Stock
8% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$12.99
This product was last offered at the strikethrough price on 06-11-2026
Featuring silver fine wire center electrode - Superior ignition ability increases engine power!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Two heat ranges colder than stock with a non-projected tip
Brand:
ES#:
3521624
Mfg#:
ER12S
In Stock
8% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$12.99
This product was last offered at the strikethrough price on 06-11-2026
Increase of +211 Horsepower, and +208 Torque! Taking you from stock 469 Horsepower, up to 680hp, and from stock torque 516, up to 724tq!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Fuel injectors are not included. Consult your tuner of preference for their recommended fuel injectors for your power goals.
Upgrade to the true dual purpose heavy duty battery with a longer life span
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi
Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes Hengst filter and Liqui Moly Leichtlauf High Tech 229.5 Spec oil
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3613165
Mfg#:
0001802609KT4
In Stock
ON SALE!
$118.99
This product was last offered at the strikethrough price on 04-20-2026
Includes Hengst filter and Liqui Moly Molygen New Generation 229.5 Spec oil
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3613163
Mfg#:
0001802609KT
In Stock
ON SALE!
SAVE 28%
$162.99
This product was last offered at the strikethrough price on 05-13-2026
Includes accessory and supercharger belt idler pulleys
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
