The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4839642
Mfg#:
013907LA01-03KT
In Stock
ON SALE!
SAVE 25%
$326.99
This product was last offered at the strikethrough price on 05-02-2026
Replace the mushy rubber hose between the expansion tank and turbocharger with our Silicone Upgrade
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Brand:
ES#:
4500530
Mfg#:
043365LA01
In Stock
ON SALE!
SAVE 41%
$50.99
This product was last offered at the strikethrough price on 05-02-2026
Gain up to 193 horsepower and 145 ​lb-ft of torque on 93 Octane
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Performance Software for your ECU Box Code is subject to availability. Only available for SIMOS 18 equipp
Brand:
ES#:
4368630
Mfg#:
20TSI-GEN3-3D-UC
In Stock
ON SALE!
$1614.99
This product was last offered at the strikethrough price on 05-21-2026
Improve your charge airflow path and reliability with our Silicone Turbo Outlet Coupler
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For vehicles with manual transmission only
Brand:
ES#:
3071748
Mfg#:
010137ECS03-01
In Stock
ON SALE!
SAVE 35%
$48.99
This product was last offered at the strikethrough price on 05-02-2026
Requires APR engine management software to allow for the increased flow of the APR pump.
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For vehicles with FSI engines only
Brand:
ES#:
11994
Mfg#:
MS100016
Ships on Jul 1, 2026
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1631.99
This product was last offered at the strikethrough price on 06-05-2026
A ready-to-install turbocharger with performance and reliability enhancing upgrades
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with FSI engines only
Featuring Milltek Sport Hi-Flow sports cat designed for Milltek's 3" Race cat-back systems.
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Flash your ECU, TCU, and add a high-flow Cobb filter to unleash the power your VW/Audi was meant to have!
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Increase your cooling capability by 30% when upgrading to a Mishimoto high performance aluminum radiator.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms See description for installation details
Feel a more crisp and defined throttle response and shift
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles from the 2009 model year only
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
Let us help you find the parts that fit your
Volkswagen
Lifetime Replacement
