BMW Intake Boots & Hoses for BMW 3 Series E46 (1999-2005)

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The intake boot provides a pathway for air from the air flow sensor to the intake manifold. On most BMWs the boot is made of rubber with an accordian shape that allows the engine to shift and vibrate. As with any rubber component the rubber can dry out and crack and that can lead to serious running and drivability issues. A crack in the boot means that air is entering the engine that is not being monitored by the airflow sensor. The engine computer relies on data from the airflow sensor to set the fuel mixture in the engine. Excess unmetered air can result in lean condition faults, rough running, misfires, and other performance issues. For misfire and lean condition faults, check your intake boots first.

As an alternative to the original rubber, we also offer silicone boots that are both stronger and last longer with a 4-layer silicone design. Samco silicone boots can also decrease your BMW's intake turbulence and restriction by replacing the accordian design with a smoothed internal surface. Samco boots are also perfect as part of a kit to eliminate the factory traction control system (sometimes called an ASC delete boot).

Intake Boot - Lower - E46 323/328, E46 325i M54, E39 528i, Z3 2.5/2.8
Genuine BMW - Corporate Logo
T#:3205
Part#: 13541435627
In Stock
16% off MSRP $18.78
$15.79
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16% off MSRP $18.78
$15.79
Free Shipping on orders $99 and up
This intake boot connects to the throttle body assembly.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325xi 328i 328ci
2001-2005 E46 BMW 325i 325ci with M54 engine
1999-2000 E39 BMW 528i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8
OEM Intake Boot - Upper - E46 323/328, E46 325i M54, Z3 2.5/2.8
Genuine BMW - Corporate Logo
T#:3206
Part#: 13541705209
In Stock
14% off MSRP $23.17
$19.89
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14% off MSRP $23.17
$19.89
Free Shipping on orders $99 and up
This intake boot connects to the mass air sensor. It fits BMW E46 323i 325i (M54) 325xi 328i - Z3 2.8 2.5.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325xi 328i 328ci
2001-2005 E46 BMW 325i 325ci with M54 engine
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8
Intake Boot - Lower - E46 330i, E46 325i M56
Genuine BMW - Corporate Logo
T#:5399
Part#: 13541438759
In Stock
16% off MSRP $18.03
$15.16
Free Shipping on orders $99 and up
16% off MSRP $18.03
$15.16
Free Shipping on orders $99 and up
This intake boot connects to the throttle housing to the upper intake boot. If it becomes cracked or loose it can cause unmetered air to enter the engine and trigger a check engine light. This fits BMW E46 330i Z3 3.0i and E46 325i with M56 engine.

This item fits the following BMWs:
2003-2005 E46 BMW 325i 325ci with M56 SULEV engine
1999-2005 E46 BMW 330i 330ci 330xi
1997-2002 Z3 BMW Z3 3.0i

Forge Silicone Vacuum Hoses
Forge - Corporate Logo
T#:558490
Part#: FORGEVAC
In Stock
Sale - Save 10% $14.95
Starting at $13.46
Sale - Save 10% $14.95
Starting at $13.46
Car suffering from vacuum leaks? Choose from a 4mm, 5mm, or 6mm diameter vacuum hose from Forge to fix your leak and bring your BMW back to life.

Intake Boot - Upper - E46 330i, E46 325i M56, Z3 3.0i
Genuine BMW - Corporate Logo
T#:3225
Part#: 13541438761
In Stock
14% off MSRP $36.72
$31.51
Free Shipping on orders $99 and up
14% off MSRP $36.72
$31.51
Free Shipping on orders $99 and up
This intake boot connects to the mass air sensor. If it becomes cracked or loose it can cause unmetered air to enter the engine and trigger a check engine light. This fits BMW E46 330i Z3 3.0i and E46 325i with M56 engine.

This item fits the following BMWs:
1999-2005 E46 BMW 330i 330ci 330xi
2003-2005 E46 BMW 325i 325ci with M56 engine
2000-2002 Z3 BMW Z3 3.0i
OEM Rein Air Intake Boot - E46 Z3
Rein - Corporate Logo
T#:386410
Part#: 13541438759
In Stock
$11.89
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This intake boot connects directly to the throttle body. Susceptible to cracking over time, this boot could be the cause of a check engine light, showing that the engine is running lean, and rough idle issues.

CSL intake flap - E46 M3
Genuine European BMW - Corporate Logo
T#:360705
Part#: 11617833498
In Stock
$429.95
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CSL intake flap - for use with CSL airbox.
Samco Silicone Intake Boot - Red - E46 M3
Samco - Corporate Logo
T#:369023
Part#: TB2754-RED
Ships in 9 Business Days
$139.95
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If you've already replaced the factory airbox of your E46 M3 for a cold air intake kit, the stock rubber intake elbow (which connects the mass air sensor / HFM to the intake manifold) is now your enemy. The stock S54 part has accordian-like grooves on both the inlet and outlet side, which slows down air flow. It's no wonder you don't see this type of restrictive setup on the E46 M3 CSL!

The Samco silicone intake boot for E46 M3 has a perfectly smooth interior surface, engineered for the best flow and smoothest transision -- no sharp edges or angles to hang up or slow down the air. Made in the UK using a 4 layer silicone design. Unlike the stock E46 M3 rubber boot, which is prone to drying, cracking and leaking, the Samco boot is virtually indestructable and ready for the rigors of heat temperature and extreme conditions.

This Samco silicone intake boot fits the following BMWs:
2001-2006 E46 M3 coupe & convertible

Samco Silicone Intake Boot - Black - E46 M3
Samco - Corporate Logo
T#:369011
Part#: TB2754-BLK
Ships in 9 Business Days
$139.95
Free Shipping
If you've already replaced the factory airbox of your E46 M3 for a cold air intake kit, the stock rubber intake elbow (which connects the mass air sensor / HFM to the intake manifold) is now your enemy. The stock S54 part has accordian-like grooves on both the inlet and outlet side, which slows down air flow. It's no wonder you don't see this type of restrictive setup on the E46 M3 CSL!

The Samco silicone intake boot for E46 M3 has a perfectly smooth interior surface, engineered for the best flow and smoothest transision -- no sharp edges or angles to hang up or slow down the air. Made in the UK using a 4 layer silicone design. Unlike the stock E46 M3 rubber boot, which is prone to drying, cracking and leaking, the Samco boot is virtually indestructable and ready for the rigors of heat temperature and extreme conditions.

This Samco silicone intake boot fits the following BMWs:
2001-2006 E46 M3 coupe & convertible

Genuine BMW Euro CSL Intake Tube - E46 M3
Genuine European BMW - Corporate Logo
T#:384701
Part#: 11617833648
Ships on Feb 12, 2019
$69.95
Free Shipping on orders $99 and up

This intake tube runs from the bumper to the intake snorkel.

Fits the following BMW's:
2003 E46 BMW M3 CSL

Genuine Euro CSL Intake Hose - E46 M3 CSL
Genuine European BMW - Corporate Logo
T#:383947
Part#: 13717896774
Ships on Feb 27, 2019
$68.95
Free Shipping on orders $99 and up
This attaches to the CSL intake system to help add additional cool air to the intake.