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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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Forge Splitter Valve Blanking Cap - Alloy

ES#3419959 - FMSPLCAP - Forge Splitter Valve Blanking Cap - Alloy - Replace your lost blanking cap on your Forge Splitter valve (FMDVSPLTR and FMBSPLTR) - Forge - Audi Volkswagen

Replace your lost blanking cap on your Forge Splitter valve (FMDVSPLTR and FMBSPLTR) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3419959
Mfg#:
FMSPLCAP
Ships on Jul 28, 2026
ON SALE! SAVE 11%
$25.99

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

$23.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Elbow Connector

ES#277644 - 058133394D - Elbow Connector - Connects the check valve to the intake manifold - Genuine Volkswagen Audi - Audi

Connects the check valve to the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine codes ATW & AWM

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
277644
Mfg#:
058133394D
In Stock
ON SALE! SAVE 23%
$12.99

This product was last offered at the strikethrough price on
04-17-2026

$9.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Air Filter

ES#251196 - E-9282 - Universal Air Filter - ID=80mm/3.15", 7" long & 7" outer diameter - K&N - Audi BMW Volkswagen Mercedes Benz MINI Porsche

ID=80mm/3.15", 7" long & 7" outer diameter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
251196
Mfg#:
E-9282
In Stock
$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve

ES#3537200 - 06A145710P - Diverter Valve - Cure the boost leak and restore power - Hamburg Tech - Audi Volkswagen

Cure the boost leak and restore power affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
From VIN 8D-X-200001, split is in the 1999 model year

Brand:
Hamburg Tech - Corporate Logo
ES#:
3537200
Mfg#:
06A145710P
Ships in 1 Business Day
$33.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ITG Drop-In Profilter

ES#4030747 - 15WB-447 - ITG Drop-In Profilter - High grade drop-in filter for your Audi, designed for road or competition use - ITG Air Filters - Audi BMW Volkswagen

High grade drop-in filter for your Audi, designed for road or competition use affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ITG Air Filters - Corporate Logo
ES#:
4030747
Mfg#:
15WB-447
Ships in 3 Business Days
$64.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankcase Breather Hose

ES#2575555 - 06A103213F - Crankcase Breather Hose - Connects the oil filter adapter to the three-way valve housing - Hamburg Tech - Audi Volkswagen

Connects the oil filter adapter to the three-way valve housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Engine code AWM

Brand:
Hamburg Tech - Corporate Logo
ES#:
2575555
Mfg#:
06A103213F
Ships in 1 Business Day
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.)

ES#3021167 - Z1001791 - Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.) - DV100001 optional blue spring for 23-30 psi - APR - Audi Volkswagen

DV100001 optional blue spring for 23-30 psi Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3021167
Mfg#:
Z1001791
Ships in 5 Business Days
11% off MSRP

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

$35.99

This product was last offered at the strikethrough price on
07-06-2026

$31.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Check Valve Replacement Kit

ES#2823247 - 058905291KKT - Check Valve Replacement Kit - Restore engine performance - Assembled By ECS - Audi

Restore engine performance 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#:
2823247
Mfg#:
058905291KKT
Ships on Sep 8, 2026
Auto Notify
ON SALE! SAVE 30%
$14.99

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

$10.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet 100 Micron Water Methanol Filter

ES#4608740 - SN0-38FIL - Billet 100 Micron Water Methanol Filter - 100 Micron Water-Methanol Filter - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

100 Micron Water-Methanol Filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4608740
Mfg#:
SN0-38FIL
Special Order: No Guaranteed ETA
$61.99 USD
Free Shipping

Breather Hose

ES#4505142 - 058103221E - Breather Hose - 'S' shaped hose attached to the bleeder valve under the intake manifold - URO - Audi Volkswagen

'S' shaped hose attached to the bleeder valve under 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!
Engine codes AWM & ATW. Engine code AEB with automatic transmissions

Brand:
URO - Corporate Logo
ES#:
4505142
Mfg#:
058103221E
Ships in 1 Business Day
$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Purge Valve

ES#6114 - 0280142300sj - Purge Valve - Common cure for DTC P0441 - Bosch - Audi Volkswagen

Common cure for DTC P0441 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:
Bosch - Corporate Logo
ES#:
6114
Mfg#:
0280142300SJ
In Stock at Vendor
$60.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Nut - Priced Each

ES#465860 - N01100636 - Hex Nut - Priced Each - Install new hardware with your new parts. M6 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the intake manifold to the cylinder head studs.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465860
Mfg#:
N01100636
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Three-Way Valve Housing

ES#3437197 - 06A103247 - Three-Way Valve Housing - 'T' shaped connection below the intake manifold - Rein - Audi Volkswagen

'T' shaped connection below 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!

Brand:
Rein - Corporate Logo
ES#:
3437197
Mfg#:
06A103247
Ships in 1 Business Day
$7.20

This product was last offered at the strikethrough price on
03-09-2026

$7.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hex Bolt - Price Each

ES#465707 - N01024016 - Hex Bolt - Price Each - Install new hardware with your new parts. M8x20 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8x20 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Secures the support bar to the intake manifold and engine block.

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
465707
Mfg#:
N01024016
In Stock
28% off MSRP

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

$2.78

This product was last offered at the strikethrough price on
07-06-2026

$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt - Priced Each

ES#468545 - N10582103 - Torx Bolt - Priced Each - Install new hardware with your new parts. M6x40 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M6x40 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Engine code AEB. Secures the throttle body to the intake manifold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
468545
Mfg#:
N10582103
In Stock
25% off MSRP

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

$1.32

This product was last offered at the strikethrough price on
07-06-2026

$0.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Check Valve - Priced Each

ES#3022 - 058905291K - Check Valve - Priced Each - Used in multiple locations in vacuum system - Genuine Volkswagen Audi - Audi Volkswagen

Used in multiple locations in vacuum system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3022
Mfg#:
058905291K
Ships in 1 day
10% off MSRP

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

$58.99

This product was last offered at the strikethrough price on
07-06-2026

$52.99 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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