Spool Performance BMW N55 Stage 2 LPFP Upgrade - E85 Compatible Plug-and-Play Drop-In Low Pressure Fuel Pump (Fits 135i, M135i, M235i, 335i, 435i, M2) SP-BM-FSP-S2

Spool Performance Stage 2 In‑Tank Lift Pump for BMW N55 Engines

Feed your tuned N55 the fuel it deserves. The Spool Performance Stage 2 in‑tank lift pump is a direct‑fit fuel supply module that delivers around 50 percent more capacity than the factory unit and is fully compatible with ethanol content up to E85. Expect rock‑steady low‑side pressure for hybrids, flex‑fuel setups, mapped road cars and hard track use, without compromise.

At MJ Modifications we have installed and used this pump on multiple customer builds, and the feedback has been superb. Customers report crisp cold starts, clean hot restarts and unwavering low‑side pressure under load. If you want a dependable N55 fueling solution that just works, this is the one we recommend.

Why enthusiasts choose this upgrade

• Stage 2 in‑tank lift pump module engineered for N55 platforms
• Approximately 50 percent greater flow than the OE pump for extra fueling headroom
• Ethanol safe to E85 for flex‑fuel and high ethanol blends
• Direct‑fit assembly that drops into the factory basket with no cutting and no additional wiring
• Keeps low‑side pressure stable on tuned applications for reliable high‑load performance
• Quality construction by Spool Performance for long‑term reliability

Vehicle coverage

• 1 Series
  • E82 135i N55
  • E88 135i N55
  • F20 M135i and M135i xDrive
  • F21 M135i and M135i xDrive
• 2 Series
  • F22 M235i and M235i xDrive
  • F23 M235i and M235i xDrive
  • F87 M2 N55
• 3 Series
  • F30 335i and 335i xDrive
  • F31 335i and 335i xDrive
• 4 Series
  • F32 435i and 435i xDrive
  • F33 435i and 435i xDrive
  • F36 435i and 435i xDrive

Part number

SP-BM-FSP-S2

Installation and support

Professional fitting is recommended for any fuel system upgrade. Book installation with MJ Modifications in Warwickshire. Request a workshop quote at info@mjmodifications.co.uk.

Calibration changes may be required when increasing fuel system capacity, especially when running ethanol blends. Consult your tuner for guidance.

Compatibility check before dispatch

We will confirm fitment prior to shipping. Please provide your UK registration number or the last 7 digits of your VIN at checkout so we can verify compatibility with your specific N55 model.

Manufactured by

Spool Performance

Search terms customers use

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