Perfect upgrade to get rid of a troublesome Lead-Acid battery and add both power and reliability at the same time!
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Increase performance and durability without sacrificing comfort - an ECS Tuning exclusive!
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Brand:
ES#:
3143399
Mfg#:
034-509-4050-SD
In Stock
ON SALE!
SAVE 10%
$66.00
This product was last offered at the strikethrough price on 06-28-2026
Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Gains of up to 10hp on a stock M3!
Brand:
ES#:
3191638
Mfg#:
PPK-S54
In Stock
ON SALE!
SAVE 25%
$418.99
This product was last offered at the strikethrough price on 06-13-2026
Replace when doing a clutch job.
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Performance street & track engine mounts to increase drivetrain rigidity
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That might not be a rear main seal or valve cover gasket leak you're experiencing. Includes new CPV with heavy duty o-ring (replace it once, and only once!) and essential stubby "drag link" socket
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Brand:
ES#:
3149232
Mfg#:
11111318185ECSKT
In Stock
ON SALE!
$85.93
This product was last offered at the strikethrough price on 05-02-2026
Hydraulic tensioner assembly for alternator/water pump belt, does not come with roller/pulley
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SCORCHER High-Performance Ignition Coils produce a high energy spark that ensures complete combustion from idle to redline
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Brand:
ES#:
5396075
Mfg#:
77-92013-MC
In Stock
ON SALE!
$262.00
This product was last offered at the strikethrough price on 06-29-2026
Includes the head gasket.
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Brand:
ES#:
2598511
Mfg#:
11127831920
In Stock
$424.99
This product was last offered at the strikethrough price on 01-22-2026
Includes all the valve stems needed for repairing, replacing, or upgrading your BMW's valves and stem seals!
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Everything you need to service your ignition system including NGK spark plugs and Bav Auto Performance ignition coils
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Brand:
ES#:
3690109
Mfg#:
12131712219KT4
In Stock
ON SALE!
SAVE 19%
$291.99
This product was last offered at the strikethrough price on 05-02-2026
Replace your brittle fan before it sends a blade through your radiator
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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
