Spool Performance Stage 3 LPFP (Low Pressure Fuel Pump) Dual In-Tank Kit for BMW M3/M4 S55 F80 F82 F83 F8X | E85/Flex Fuel Ready | 1200whp Support | High-

S55 fuelling solution for F8x M3 and M4 owners chasing big power

Ready to feed serious boost on your F80, F82 or F83 build? This Spool Performance dual in-tank low side system delivers the flow you need for ethanol blends and high horsepower tuning. The secondary pump is brought in under load, so you get demand-based delivery with stable pressure, smooth drivability and the headroom required for calibrated E blends including E85. Rated to support around 1200 wheel horsepower on the low side, this is the dependable foundation for aggressive maps, hybrid turbos and single turbo conversions on the S55 platform.

We run this kit on our own development cars and customer M3 and M4 projects. Feedback has been consistently excellent for fuel pressure stability, road manners and reliability on both petrol and ethanol mix setups. If you want confidence at high boost, this is the upgrade that keeps the rail supplied and the tuners happy.

Highlights

• Genuine Spool Performance twin in-tank low side fuelling system for the S55 engine
• Secondary pump activates with boost for on-demand flow and consistent pressure
• Nearly double the delivery of the factory lift pump for strong low side support
• Supports circa 1200 whp worth of low side capacity on petrol and ethanol including E85
• Prevents low side pressure drop on mapped and high boost applications
• Ideal for hybrid turbo, big turbo, track day and drag strip builds

Why enthusiasts choose this S55 fuelling kit

• Keeps the high side supplied by maintaining steady low side pressure under load
• Future-proofs your calibration for higher boost, larger turbos and ethanol content
• Proven on our in-house and customer F8x cars with superb real-world results

Vehicle compatibility

• BMW F80 M3 Saloon S55, including LCI variants
• BMW F82 M4 Coupe S55, including GTS and CS, plus LCI
• BMW F83 M4 Convertible S55, including LCI

Installation and support

Professional fitting is recommended. MJ Modifications in Warwickshire can install this upgrade and support your build. To request a quote, email info@mjmodifications.co.uk.

Compatibility check

We will verify fitment before dispatch. Provide your UK registration or the last 7 digits of your VIN at checkout so we can confirm compatibility for your specific M3 or M4.

Part number

SP-BMF8x-FP

Brand

Spool Performance

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