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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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Water/Methanol Nozzle - 10GPH

ES#4376610 - SN0-N1000 - Water/Methanol Nozzle - 10GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4376610
Mfg#:
SN0-N1000
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up

Water/Methanol Dual Nozzle Upgrade Stainless Steel Braided Line

ES#4212781 - SN0-40040-BRD - Water/Methanol Dual Nozzle Upgrade Stainless Steel Braided Line - Install and additional water/methanol nozzle in any WMI system! - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Install and additional water/methanol nozzle in any WMI system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4212781
Mfg#:
SN0-40040-BRD
In Stock at Vendor
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#1580 - 037906461C - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Bosch - Audi Volkswagen

Restore fuel economy and performance 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 VIN 8D-W-080001, split is in the 1998 model year

Brand:
Bosch - Corporate Logo
ES#:
1580
Mfg#:
037906461C
Back Ordered
$509.99

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

$495.99 USD
Free Shipping
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

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

NS Performance PowerGasket - Small Port

ES#1393 - NSPG18T - NS Performance PowerGasket - Small Port - Gaskets will deflect heat and reduce air intake temps - New South Performance - Audi Volkswagen

Gaskets will deflect heat and reduce air intake temps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes ATW & AWM. The support bar bracket hole will need enlarged for proper fitment

Brand:
New South Performance - Corporate Logo
ES#:
1393
Mfg#:
NSPG18T
Ships in 8 Business Days
$70.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Suction Pump

ES#2772076 - 058133753D - Suction Pump - Restore engine performance - URO - Audi Volkswagen

Restore engine performance 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#:
2772076
Mfg#:
058133753D
In Stock
$28.42

This product was last offered at the strikethrough price on
03-25-2026

$21.99 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

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

Mass Air Flow Sensor (MAF)

ES#2812926 - 037906461C - Mass Air Flow Sensor (MAF) - Restore fuel economy and performance - Hamburg Tech - Audi Volkswagen

Restore fuel economy and performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
From VIN 8D-W-080001, split is in the 1998 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
2812926
Mfg#:
037906461C
In Stock
Limited Qty Sale
$109.95

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

$94.99 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 Mercedes Benz 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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
517882
Mfg#:
90-50501
In Stock
ON SALE! SAVE 15%
$21.00

This product was last offered at the strikethrough price on
06-29-2026

$17.85 USD
Free Shipping
on orders $49 and up
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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
07-05-2026

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

Throttle Body Assembly

ES#3675 - 058133063Q - Throttle Body Assembly - Cable driven assembly for intake air - Continental - Audi Volkswagen

Cable driven assembly for intake air affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
3675
Mfg#:
058133063Q
In Stock at Vendor
$476.99

This product was last offered at the strikethrough price on
04-03-2026

$436.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Filter Oil & Cleaner Kit

ES#4830731 - vwr120000KT - Filter Oil & Cleaner Kit - The filter element deserves to be well looked after and be a part of your regular maintenance schedule. - Racingline - Audi Volkswagen

The filter element deserves to be well looked after and be a part of your regular maintenance schedule. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Racingline - Corporate Logo
ES#:
4830731
Mfg#:
VWR120000KT
Back Ordered
Auto Notify
ON SALE! SAVE 12%
$48.99

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

$43.25 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Suction Pump

ES#2803814 - 058133753D - Suction Pump - Restore engine performance - Rein - Audi Volkswagen

Restore engine performance 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:
Rein - Corporate Logo
ES#:
2803814
Mfg#:
058133753D
In Stock
ON SALE!
$29.99

This product was last offered at the strikethrough price on
06-29-2026

$28.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#4818590 - 1C0906517A - Purge Valve - Common cure for DTC P0441 - Bremmen Parts - Audi Volkswagen Porsche

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818590
Mfg#:
1C0906517A
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 21%
$37.99

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

$30.18 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water-Methanol Dual Nozzle Upgrade - Quick-Connect Fittings

ES#4147673 - SN0-40040 - Water-Methanol Dual Nozzle Upgrade - Quick-Connect Fittings - Install and additional water/methanol nozzle in any WMI system! - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Install and additional water/methanol nozzle in any WMI system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4147673
Mfg#:
SN0-40040
In Stock
$41.99 USD
Free Shipping
on orders $49 and up
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.

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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