Stage 2 LPFP petrol pump kit, Walbro 450/455, suitable for BMW 135i, 1 Series M Coupe, 335i(x) N54/N55 E-Series
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One topic that eventually needs to be addressed on almost all turbocharged BMW engines once they reach higher power levels is the fuel supply system.
A cost-effective yet highly effective upgrade is improving the low-pressure fuel pump (LPFP), which transfers fuel from the tank to the high-pressure fuel pump in the engine bay.
The Stage 2 Kit offered here uses the well-known Walbro 450 (F90000274) in-tank fuel pump to build a completely new fuel bucket assembly by replacing the factory pump with the Walbro unit. This upgrade increases the flow capacity of the low-pressure fuel system (LPFP) by approximately 100%.
Features:
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Complete conversion of the original fuel bucket using a Walbro 450 or 455 (F90000274) fuel pump
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Modified without a Venturi system inside the bucket to achieve maximum fuel flow
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Recommended for applications up to 650 HP
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Compatible with all BMW E-Series vehicles equipped with N54 and N55 engines
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Built using a completely new fuel bucket assembly
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Includes O-ring for installation
IMPORTANT: Not compatible with US-import vehicles. The fuel pump lid differs on these models. In some cases, the original lid can be reused, but modifications are required. This kit is plug-and-play only for EU-spec vehicles.
Build time: 10–14 business days.
Important Notice
The mention of vehicle manufacturers and model names is for product identification and compatibility purposes only.
Unless the product description explicitly states that the item includes a parts certificate (Teilegutachten), approval certificate, or ABE (General Operating Permit), the product is supplied without road-legal approval for use under German road traffic regulations (StVZO). In such cases, individual approval under §21 StVZO is required. Please contact us for further information.