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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Engine Intake Parts

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Turbosmart BOV Kompact Plumb Back-25mm

ES#3149384 - TS-0203-1222 - Turbosmart BOV Kompact Plumb Back-25mm - Bolt-in replacement for your factory plastic valve - TurboSmart - Audi Volkswagen

Bolt-in replacement for your factory plastic valve

Brand:
TurboSmart - Corporate Logo
ES#:
3149384
Mfg#:
TS-0203-1222
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.

$186.99

This product was last offered at the strikethrough price on
08-21-2026

$168.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max

ES#3691401 - 30-3304 - V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max - A progressive type controller where fluid will be injected in proportion to the amount of boost that is detected by the internal MAP sensor - Controller only - AEM Electronics - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A progressive type controller where fluid will be injected in proportion to the amount of boost that is detected by the internal MAP sensor - Controller only Controller only - Does not include addtional components

Brand:
AEM Electronics - Corporate Logo
ES#:
3691401
Mfg#:
30-3304
In Stock at Vendor
11% off MSRP

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

$247.99

This product was last offered at the strikethrough price on
08-21-2026

$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#4620670 - 077133517C - Purge Valve - Common fix for DTC P0441 - URO - Audi Volkswagen

Common fix for DTC P0441 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4620670
Mfg#:
077133517C
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Water Methanol Check Valve

ES#3988118 - Sn0-8cv-qc - High Flow Water Methanol Check Valve - Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. - SnowPerformance - Audi BMW Volkswagen MINI

Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol.

Brand:
SnowPerformance - Corporate Logo
ES#:
3988118
Mfg#:
SN0-8CV-QC
In Stock at Vendor
$31.99 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 We Price Match - Give Us A Call or Chat!

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

Air Temperature Sensor

ES#2447 - 058905379 - Air Temperature Sensor - Measures the temperature of the air entering the engine - Bosch - Audi Volkswagen

Measures the temperature of the air entering the engine 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2447
Mfg#:
058905379
In Stock
$38.99

This product was last offered at the strikethrough price on
03-30-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Kit - Multi Input

ES#2972925 - 30-3350 - Water/Methanol Injection Kit - Multi Input - Increase power and efficiency while decreasing combustion temperatures - AEM Electronics - Audi BMW Volkswagen MINI

Increase power and efficiency while decreasing combustion temperatures For Naturally Aspirated Engines

Brand:
AEM Electronics - Corporate Logo
ES#:
2972925
Mfg#:
30-3350
In Stock at Vendor
11% off MSRP

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

$658.99

This product was last offered at the strikethrough price on
08-21-2026

$584.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Splitter Valve - Polished

ES#1832064 - FMDVSPLTRC - Splitter Valve - Polished - Recirculation & blow off valve all in one for customers that want both styles - Forge - Audi Volkswagen

Recirculation & blow off valve all in one for customers that want both styles

Brand:
Forge - Corporate Logo
ES#:
1832064
Mfg#:
FMDVSPLTRC
Back Ordered
$287.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#2562351 - 058133843 - Air Filter - Keep clean air running through your engine - Hengst - Audi Volkswagen
ECS Tuning recommends this product.

Keep clean air running through your engine 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
2562351
Mfg#:
058133843
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pro 5 R Restore Kit

ES#517882 - 90-50501 - Pro 5 R Restore Kit - Used for Pro 5 R filters - AFE - Audi BMW Volkswagen MINI

Used for Pro 5 R filters

Brand:
AFE - Corporate Logo
ES#:
517882
Mfg#:
90-50501
In Stock
22% off MSRP

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

$26.99

This product was last offered at the strikethrough price on
08-21-2026

$21.00 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

Brand:
Vaico Q+ - Corporate Logo
ES#:
2597708
Mfg#:
06A145710N
In Stock at Vendor
$67.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose Connector

ES#2708697 - 06A103213F - Breather Hose Connector - Connects the oil filter adapter to the three-way valve housing - URO - Audi Volkswagen

Connects the oil filter adapter to the three-way valve housing 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AWM engine code only

Brand:
URO - Corporate Logo
ES#:
2708697
Mfg#:
06A103213F
In Stock
$14.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMS Billet Water/Methanol Injection Tank Cap With Safety Check Valve

ES#4714530 - BMSWMITC - BMS Billet Water/Methanol Injection Tank Cap With Safety Check Valve - The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out! - Burger Motorsports - Audi BMW Volkswagen MINI Porsche

The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out!

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714530
Mfg#:
BMSWMITC
In Stock
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve - Polished

ES#2917784 - DV25 - Diverter Valve - Polished - Keep your turbo boosting like it should - Euro Sport Acc - Audi Volkswagen

Keep your turbo boosting like it should

Brand:
Euro Sport Acc - Corporate Logo
ES#:
2917784
Mfg#:
DV25
Ships in 3 Business Days
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Intake Parts

All engine performance begins with engine breathing. That's why we have a large inventory of stock and performance intake manifolds, and related intake manifold parts, including MAF sensors, intake hoses, cold air intake systems, and engine air filters for both normally aspirated and forced induction engines. To perform it's best, your engine needs to breathe clean and breathe free.

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Manufacturer names and/or part numbers are used only for identification purposes.

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