Keep proper pressure in your coolant system
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Choose the stage that meets your power goals!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 for a chance to win your Software & UniCONNECT+ Cable for FREE! This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next
Coolant level sensor enclosed in tank
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Brand:
ES#:
4004609
Mfg#:
4G0121403AC
In Stock
ON SALE!
$55.99
This product was last offered at the strikethrough price on 06-29-2026
Located behind the catalytic converter
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Brand:
ES#:
3420002
Mfg#:
4H0906265B
In Stock at Vendor
$151.99
This product was last offered at the strikethrough price on 05-07-2026
Designed for use with Audi’s high output RS6/7 4.0 TFSI turbochargers - When paired with required hardware, this upgrade offers 634 HP and 671 FT-LBS of torque on 93 octane fuel and 707 HP and 714 FT-LBS of torque with race fuel!
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Gain complete control of the OE exhaust valves on factory and Milltek Sport exhaust systems
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Brand:
ES#:
3426792
Mfg#:
SSXAU675
Ships in 3 Business Days
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$798.99
This product was last offered at the strikethrough price on 07-01-2026
The 034Motorsport High-Pressure Fuel Pump Tool is designed to make the disassembly and reassembly of 4.0T high-pressure fuel pumps a breeze!
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Brand:
ES#:
4858193
Mfg#:
034-106-Z058
In Stock
ON SALE!
SAVE 10%
$14.00
This product was last offered at the strikethrough price on 06-28-2026
Secures the coolant temperature sensor in place
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The perfect sweet spot for aggressive turbo spool noises, sharp throttle response, and massive airflow on a tuned street car.
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By switching from electronic diverter valves to a mechanical blow-off valve (BOV), you can eliminate the common issues associated with electronic valves.
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Located on the high pressure fuel pump or fuel hardline, depending on vehicle application
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Brand:
ES#:
4842770
Mfg#:
06H906051K
In Stock
$57.99
This product was last offered at the strikethrough price on 04-10-2026
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
