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Rein BMW Intake Parts

One thing drivers and cars have in common is the need for air. Induction systems provide a third of the critical necessities for engines to run, so giving your BMW the best way to breathe is paramount in engine performance. If you need to replace your filter, recharge your reusable pod filter, or upgrade your intake, turbos, or intercooler parts, everything can be found below. We have OEM replacements as well as aftermarket performance upgrades to keep your BMW pristine, powerful, and functioning at peak efficiency.

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Rein Silicone Vaccum Hose - Black - 65 Feet

2X Entries Into Our F80 M3 Sweepstakes

T#:378475

Part#: 5173125797120BLK

Ships in 3 Business Days

Sale - Save 5% $ 175.99

This product was last offered at the strikethrough price on
08-31-2026

$ 166.75 USD

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$ 175.99

This product was last offered at the strikethrough price on
08-31-2026

$ 166.75 USD

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Replace your cracked or frayed vacuum lines. 3.5mm

Rein Intake Manifold Breather Valve | BMW E31 E38 M73 5.4L engine ...

2X Entries Into Our F80 M3 Sweepstakes

T#:38195423

Part#: 11157501565

Ships in 3 Business Days

Sale - Save 7% $ 29.99

This product was last offered at the strikethrough price on
08-31-2026

$ 27.75 USD

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Sale - Save 7%

$ 29.99

This product was last offered at the strikethrough price on
08-31-2026

$ 27.75 USD

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Rein Intake Manifold Breather Valve | BMW E31 E38 M73 5.4L engine is a crucial component for maintaining proper crankcase ventilation and engine efficiency. Designed for BMW E31 and E38 models equipped with the M73 5.4L engine, this breather valve helps regulate internal pressure within the intake manifold, preventing excessive oil consumption and ensuring smooth engine operation. Over time, a failing breather valve can cause vacuum leaks, rough idling, and reduced performance. This high-quality replacement restores proper airflow and reliability.

Ensures optimal crankcase ventilation for improved engine efficiency
Helps prevent vacuum leaks, oil consumption, and performance issues
Direct-fit replacement for BMW E31 and E38 M73 5.4L engines
Manufactured to meet or exceed OEM specifications for durability
Restores smooth engine operation and idle stability
Precision-engineered for a secure fit and easy installation

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Rein Cloth Braided Fuel/Vacuum Hose - Black - 20 Meter

2X Entries Into Our F80 M3 Sweepstakes

T#:378471

Part#: N203531-20

Ships in 3 Business Days

Sale - Save 5% $ 363.52

This product was last offered at the strikethrough price on
08-31-2026

$ 345.34 USD

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Sale - Save 5%

$ 363.52

This product was last offered at the strikethrough price on
08-31-2026

$ 345.34 USD

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Replace your cracked or frayed fuel or vacuum lines. 3.5mm ID

Rein Idle Control Valve Hose - E30 325i E34 525i E36 325i 325ic 325is...

2X Entries Into Our F80 M3 Sweepstakes

T#:55821708

Part#: 13411738185

In Stock at Vendor

Sale - Save 5% $ 16.99

This product was last offered at the strikethrough price on
08-31-2026

$ 16.14 USD

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$ 16.99

This product was last offered at the strikethrough price on
08-31-2026

$ 16.14 USD

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The factory Idle Air Control Valve hoses are subjected to decades of intense engine bay heat, oil vapor, and constant engine movement. Over time, the factory rubber hardens, becomes brittle, and develops hairline splits on the underside where you can't see them without removing the throttle body. These unmetered vacuum leaks allow unmeasured air into the engine, throwing off your fuel trims and ruining your idle quality.

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OEM Rein Air Intake Boot - E46 Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:386410

Part#: 13541438759

In Stock

Sale - Save 53% $ 29.99

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

$ 14.24 USD

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Sale - Save 53%

$ 29.99

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

$ 14.24 USD

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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.

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Intake Boot

2X Entries Into Our F80 M3 Sweepstakes

T#:402080

Part#: 13547505838

In Stock at Vendor

Sale - Save 5% $ 19.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.99 USD

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$ 19.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.99 USD

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Connects to the mass airflow meter

Intake Boot

2X Entries Into Our F80 M3 Sweepstakes

T#:402027

Part#: 13541740931

Ships in 3 Business Days

Sale - Save 5% $ 18.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.04 USD

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$ 18.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.04 USD

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Intake boot for the air flow meter

Rein Air Flow Meter Boot - E83 - M54

2X Entries Into Our F80 M3 Sweepstakes

T#:53750111

Part#: 13543412291

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Sale - Save 5% $ 55.99

This product was last offered at the strikethrough price on
08-31-2026

$ 53.04 USD

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$ 55.99

This product was last offered at the strikethrough price on
08-31-2026

$ 53.04 USD

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Replace a Torn or Cracking Rubber MAF Intake with this OE Level Replacement from Rein. Restoring Proper Intake Flow and Performance

Coolant Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:57616349

Part#: 11538666856

Ships in 3 Business Days

Sale - Save 6% $ 64.99

This product was last offered at the strikethrough price on
08-31-2026

$ 61.28 USD

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Sale - Save 6%

$ 64.99

This product was last offered at the strikethrough price on
08-31-2026

$ 61.28 USD

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This Rein turbocharger coolant line provides a factory-grade solution engineered to meet the strict performance standards your vehicle demands.

Throttle Body Boot

2X Entries Into Our F80 M3 Sweepstakes

T#:591895

Part#: 13541440102

Ships in 3 Business Days

Sale - Save 42% $ 22.99

This product was last offered at the strikethrough price on
08-13-2026

$ 13.29 USD

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Sale - Save 42%

$ 22.99

This product was last offered at the strikethrough price on
08-13-2026

$ 13.29 USD

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Intake Boot

2X Entries Into Our F80 M3 Sweepstakes

T#:591892

Part#: 13541435625

In Stock

Sale - Save 5% $ 20.99

This product was last offered at the strikethrough price on
08-31-2026

$ 19.94 USD

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Sale - Save 5%

$ 20.99

This product was last offered at the strikethrough price on
08-31-2026

$ 19.94 USD

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Boot that attaches to the mass air sensor

Rein Air Intake Boot - E39, E46, Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:362650

Part#: 13541435627

In Stock

Sale - Save 16% $ 16.99

This product was last offered at the strikethrough price on
06-11-2026

$ 14.24 USD

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Sale - Save 16%

$ 16.99

This product was last offered at the strikethrough price on
06-11-2026

$ 14.24 USD

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Connects directly to the throttle body

Rein Idle Control Valve Hose - E36, Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:379729

Part#: 13541740159

Ships in 2 Business Days

Sale - Save 18% $ 20.99

This product was last offered at the strikethrough price on
08-14-2026

$ 17.17 USD

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Sale - Save 18%

$ 20.99

This product was last offered at the strikethrough price on
08-14-2026

$ 17.17 USD

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Runs from the idle control valve

Intake Boot

2X Entries Into Our F80 M3 Sweepstakes

T#:594356

Part#: 13541703726

In Stock

$ 30.81

This product was last offered at the strikethrough price on
06-15-2026

$ 22.99 USD

Limited Qty Sale

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$ 30.81

This product was last offered at the strikethrough price on
06-15-2026

$ 22.99 USD

Limited Qty Sale

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This is the rubber intake boot that the Mass Air Meter clamps to. If your boot has rotted or deteriorated it will cause a rough idle and poor performance.

OEM Rein Turbo Charge Pipe - Turbo to Intercooler - F07/10 N20 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:639075

Part#: 13718672108

Back Ordered

Sale - Save 8% $ 109.99

This product was last offered at the strikethrough price on
08-13-2026

$ 100.69 USD

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Sale - Save 8%

$ 109.99

This product was last offered at the strikethrough price on
08-13-2026

$ 100.69 USD

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Is your charge pipe leaking pressure? Replace it with this OEM Rein charge pipe to restore power and reliability.

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