Spool Performance Bucketless Stage 3 LPFP Upgrade for BMW 135i & 335i (E82 E88 E90 E91 E92 E93) - N54/N55 Low Pressure Fuel Pump, E8X/E9X xDrive Compatible

High-flow in-tank fuel pump solution for BMW 135i and 335i N54 and N55

Push your remapped 1 Series or 3 Series harder with confident fueling. This Stage 3 bucket-delete in-tank low side pump from Spool Performance is built for E8x and E9x platforms and delivers the consistent fuel supply that tuned N54 and N55 engines demand on fast road and track day use. Expect rock-solid pressure, excellent flow capacity and proven reliability on spirited builds that have outgrown the factory feed pump.

We run this hardware on our own cars and customer vehicles and the feedback has been superb. Driveability is smooth, hot starts are clean and fuel delivery remains stable under sustained load. If you are searching for a serious in-tank upgrade for your BMW 135i or 335i that keeps pace with your calibration, this is the one to fit.

Why this Stage 3 bucket-delete pump is a winner

• Bucketless configuration for maximum in-tank flow and dependable fuel supply under heavy acceleration
• Engineered specifically for N54 and N55 engines across E82 E88 135i and E90 E91 E92 E93 335i chassis
• Suitable for aggressive remaps, hybrid turbo builds and fast-road setups where the stock low side pump is a restriction
• Includes secondary pump activation harness plus the hardware required for refitment
• Trusted Spool Performance solution used by enthusiasts worldwide

What is included

• Stage 3 bucketless in-tank low side pump assembly
• Secondary pump activation harness
• Install hardware for reassembly

Important core upgrade process

A send-in is required. You must provide your existing Stage 2 low side pump so it can be upgraded to Stage 3 specification. Once completed, your upgraded assembly will be returned with the activation harness and fitting hardware.

Vehicle coverage

• BMW 1 Series 135i E82 E88 N54 and N55 2006 to 03/2012
• BMW 3 Series 335i E90 E91 E92 E93 N54 2006 to 2011
• BMW 3 Series 335i E90 E91 E92 E93 N55 2011 to 2013

Compatible with xDrive all-wheel-drive models.

Installation and support

Professional fitting is recommended. For supply and installation, choose MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Fitment verification before dispatch

We will confirm compatibility prior to shipping. Please provide your UK registration number or the last 7 digits of your VIN at checkout so we can verify the correct in-tank pump assembly for your car.

Part number

SP-BMFP-S3U

Brand

Spool Performance

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