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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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Intake Manifold Regulator Valve - Rein | BMW E31 E38 M73 5.4L Engine
Intake Manifold Regulator Valve - Rein | BMW E31 E38 M73 5.4L Engine ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38229095
Part#: 11157501564
Ships in 4 Business Days
$ 35.99 USD
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$ 35.99 USD
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Intake Manifold Regulator Valve - Rein | BMW E31 E38 M73 5.4L Engine is engineered to maintain optimal airflow and engine performance by regulating intake manifold pressure. A failing regulator valve can lead to poor throttle response, rough idling, and decreased fuel efficiency. This high-quality replacement ensures proper engine function and is designed as a direct-fit solution for BMW E31 and E38 models equipped with the M73 5.4L engine. Manufactured to meet or exceed OEM standards, this valve restores efficient air intake operation, improving overall engine performance.

  • Regulates intake manifold pressure for optimal airflow and performance
  • Direct-fit replacement for BMW E31 and E38 M73 5.4L engines
  • Helps improve throttle response and fuel efficiency
  • Reduces rough idling and engine hesitation
  • Manufactured to meet or exceed OEM quality standards
  • Ensures long-lasting durability and reliability
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Coolant Hose
Coolant Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:57616349
Part#: 11538666856
Ships in 4 Business Days
New Item
$ 64.99 USD
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$ 64.99 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
Throttle Body Boot
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:591895
Part#: 13541440102
Ships in 4 Business Days
$ 22.99

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

$ 14.95 USD
Free Shipping on orders $49 and up
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$ 14.95 USD
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Rein Air Intake Boot - E39, E46, Z3
Rein Air Intake Boot - E39, E46, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:362650
Part#: 13541435627
In Stock
$ 16.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
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$ 14.99 USD
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Connects directly to the throttle body
Intake Boot
Intake Boot
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
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
Free Shipping on orders $49 and up
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$ 30.81

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

$ 22.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
Add to Wish List
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
OEM Rein Turbo Charge Pipe - Turbo to Intercooler - F07/10 N20 ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:639075
Part#: 13718672108
Back Ordered
$ 109.99

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

$ 105.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 105.99 USD
Free Shipping on orders $49 and up
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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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