Comes with everything you need to replace your incredibly heavy, OEM battery with a lightweight battery and relocate it to the trunk of your B6-B7 S4 or A4!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Seals the throttle body to the intake manifold
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Keep your charging system operating at full potential
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! For vehicles that came with Valeo 150 amp alternators. Check existing part # before ordering.
Brand:
ES#:
4140445
Mfg#:
06E903016S
In Stock at Vendor
$701.99
This product was last offered at the strikethrough price on 05-07-2026
The LITHIUM US is a versatile, microprocessor-controlled charger designed for recharging and maintaining Lithium-Iron (LiFePO4) batteries, featuring automatic operation, and multiple safety protections.
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Located on the high pressure fuel pump or fuel hardline, depending on vehicle application
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! Located in fuel feed line to fuel rail
Brand:
ES#:
4842770
Mfg#:
06H906051K
In Stock
$57.99
This product was last offered at the strikethrough price on 04-10-2026
17.3x1.5 - O-ring used in various areas on your European automobile
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Seals the connection point between the N205 valve and cam bridge - Qty 8 total required
Brand:
ES#:
1301522
Mfg#:
N91020001
In Stock
16% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$6.49
This product was last offered at the strikethrough price on 07-05-2026
Keep your engine running efficiently
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! For engine code AHA, fits left and right position
Senses engine oil pressure for the ECU and warning light. 1.2-1.6 BAR
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat! From the 2000 model year
Measures the temperature of the air entering the engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
2447
Mfg#:
058905379
In Stock
$38.99
This product was last offered at the strikethrough price on 03-30-2026
With automotive electrical content growing yearly, it has never been more important to keep your charging and electrical system in top working condition. ECS Tuning stocks a huge and constantly growing inventory of electrical sensors, electric motors, and electronic actuators from original equipment and name-brand aftermarket suppliers.
Lifetime Replacement
