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Audi B5 S4 2.7T

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Audi B5 S4 2.7T Engine Turbocharger Parts

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K04/K03 Turbocharger Installation Kit

ES#2724103 - RS4KO4INSTKt - K04/K03 Turbocharger Installation Kit - Includes all hardware & gaskets to install turbos - plus turbo mounting bolts - Assembled By ECS - Audi

Includes all hardware & gaskets to install turbos - plus turbo mounting bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2724103
Mfg#:
RS4KO4INSTKT
Ships in 6 Business Days
ON SALE! SAVE 19%
$218.65

This product was last offered at the strikethrough price on
05-02-2026

$177.18 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Boot

ES#3971244 - 078133356T - Throttle Body Boot - Attaches directly to the throttle body - URO - Audi

Attaches directly to the throttle body 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:
URO - Corporate Logo
ES#:
3971244
Mfg#:
078133356T
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Kompact Dual Port Blow Off Valve Suit 25mm Inlet Fitting - Priced Each

ES#4708059 - TS-0203-1022 - Kompact Dual Port Blow Off Valve Suit 25mm Inlet Fitting - Priced Each - Get those sweet turbo noises - TurboSmart - Audi

Get those sweet turbo noises affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
4708059
Mfg#:
TS-0203-1022
In Stock at Vendor
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$253.99

This product was last offered at the strikethrough price on
07-05-2026

$228.99 USD
Free Shipping

Silicone Diverter Valve Pressure Hose - Pair

ES#2864547 - 034-101-3066 - Silicone Diverter Valve Pressure Hose - Pair - This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses - 034Motorsport - Audi

This hose pair is designed to replace the outrageously expensive, failure-prone factory rubber hoses affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2864547
Mfg#:
034-101-3066
In Stock
ON SALE! SAVE 10%
$40.00

This product was last offered at the strikethrough price on
06-28-2026

$36.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Banjo Bolt - Priced Each

ES#466877 - N0210742 - Banjo Bolt - Priced Each - Secures the coolant lines to the turbocharger. M14x1.5 - Genuine Volkswagen Audi - Audi Volkswagen

Secures the coolant lines to the turbocharger. M14x1.5 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
466877
Mfg#:
N0210742
Ships in 3 Business Days
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$29.99

This product was last offered at the strikethrough price on
07-05-2026

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

710N Diverter Valve - Priced Each

ES#2597708 - 06A145710N - 710N Diverter Valve - Priced Each - A great upgrade for stock to mildly tuned engines - Vaico Q+ - Audi Volkswagen

A great upgrade for stock to mildly tuned engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
Vaico Q+ - Corporate Logo
ES#:
2597708
Mfg#:
06A145710N
In Stock at Vendor
$91.99

This product was last offered at the strikethrough price on
02-20-2026

$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

710N Diverter Valve - Priced Each

ES#2813017 - 06A145710N - 710N Diverter Valve - Priced Each - A great upgrade for stock to mildly tuned engines - Hamburg Tech - Audi Volkswagen

A great upgrade for stock to mildly tuned engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
2 required

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813017
Mfg#:
06A145710N
Ships in 2 Business Days
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Gasket - Priced Each

ES#5901 - 8D0253115F - Exhaust Gasket - Priced Each - Seal the turbocharger to the downpipe - Victor Reinz - Audi

Seal the turbocharger to the downpipe affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
5901
Mfg#:
8D0253115F
In Stock
$10.99

This product was last offered at the strikethrough price on
06-18-2026

$10.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gen-V WG50 Pro-Gate50 External Wastegate - 14psi / Black

The Gen-V WG50 Pro-Gate50 external wastegate is a cost effective, high performing 50mm external wastegate. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*General use wastegate for custom, externally gated big turbo applications - Not a direct fit wastegate*

Brand:
TurboSmart - Corporate Logo
ES#:
4007256
Mfg#:
TS-0554-1012
In Stock at Vendor
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$635.99

This product was last offered at the strikethrough price on
07-05-2026

$572.99 USD
Free Shipping
on orders $49 and up

Manual Boost Controller - Polished

ES#1832070 - fmbv050c - Manual Boost Controller - Polished - Lockable under-hood boost controller - Forge - Audi Volkswagen MINI Porsche

Lockable under-hood boost controller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
1832070
Mfg#:
FMBV050C
Back Ordered
Auto Notify
ON SALE! SAVE 12%
$34.99

This product was last offered at the strikethrough price on
07-01-2026

$30.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter (Bypass) Valve OEM 710N

ES#4880731 - 034-145-5001 - Diverter (Bypass) Valve OEM 710N - New OEM "710N" bypass valve with reinforced rubber diaphragm for longer use than other plastic valves. - 034Motorsport - Audi Volkswagen

New OEM "710N" bypass valve with reinforced rubber diaphragm for longer use than other plastic valves. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
034Motorsport - Corporate Logo
ES#:
4880731
Mfg#:
034-145-5001
In Stock
ON SALE! SAVE 10%
$91.00

This product was last offered at the strikethrough price on
06-28-2026

$81.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Oil Line Gasket - Priced Each

ES#1590 - 058145757B - Turbo Oil Line Gasket - Priced Each - Seals the oil return line to the turbocharger - Elring - Audi Volkswagen

Seals the oil return line to the turbocharger 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:
Elring - Corporate Logo
ES#:
1590
Mfg#:
058145757B
In Stock
$6.11

This product was last offered at the strikethrough price on
03-27-2026

$2.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

008 Premium Diverter Valve - Black - 3 Way adjustable Vacuum Port

ES#3214561 - FMDV008PA - 008 Premium Diverter Valve - Black - 3 Way adjustable Vacuum Port - Smaller, tougher and tuneable - Now with 3-way adjustable, 90-degree vacuum port - Forge - Audi Volkswagen Porsche

Smaller, tougher and tuneable - Now with 3-way adjustable, 90-degree vacuum port affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2 required

Brand:
Forge - Corporate Logo
ES#:
3214561
Mfg#:
FMDV008PA
Back Ordered
ON SALE! SAVE 10%
$268.99

This product was last offered at the strikethrough price on
07-01-2026

$241.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbosmart Boost Tee Manual Boost Controller - Blue

ES#4430281 - TS-0101-1101 - Turbosmart Boost Tee Manual Boost Controller - Blue - In-car boost controller for fine tuning - TurboSmart - Audi Volkswagen MINI Porsche

In-car boost controller for fine tuning affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
TurboSmart - Corporate Logo
ES#:
4430281
Mfg#:
TS-0101-1101
In Stock at Vendor
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$124.99

This product was last offered at the strikethrough price on
07-05-2026

$112.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#4817 - N90369001 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M10 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M10 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the catalyst/downpipe to the turbo

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4817
Mfg#:
N90369001
Ships in 3 Business Days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$17.99

This product was last offered at the strikethrough price on
06-17-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Copper Sealing Washer - Priced Each

ES#9616 - 216-12016 - Copper Sealing Washer - Priced Each - Stop leaks and ensure a proper seal. 12x15.5 - Elring - Audi Volkswagen

Stop leaks and ensure a proper seal. 12x15.5 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!
Seals the oil supply line to the turbochargers and distributor

Brand:
Elring - Corporate Logo
ES#:
9616
Mfg#:
216-12016
In Stock
$3.99

This product was last offered at the strikethrough price on
04-08-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Turbocharger Parts

Whether you're repairing an existing turbo or adding one, ECS Tuning has turbos, turbo kits, and all the turbocharger hardware and valving you need to turn forced induction into added power.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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