2018 BMW X3 M40i Performance Parts

The Precision Raceworks B58 Port Injection Kit with flex fuel compatibility is a necessity to safely and sufficiently support the power levels anyone needing additional fueling. This kit is capable of providing supplemental fueling to all BMW's equipped with the B58 engine (Gen1 and Gen2)...

Universal spark plug gap tool for your 12mm or 14mm spark plugs. A must for installing any spark plugs!

The Precision Raceworks Ethanol 360™ fuel line fittings are designed to work in almost any application where you have 5/16" or 7.89mm quick connect fittings and need to add a flex fuel sensor. These fittings work with most all ethanol sensors without the need...

90 degree fitting featuring a 7.89mm female quick connect on one end and a 9.89mm female quick connect on the other. Featuring our Air Hose style quick connects for easy connections! As found in our MK7 Stage 4 fuel pump & line kit.

Replacing your fuel filter element in your Precision Raceworks inline fuel filter is the best way to maintain the flow and performance of your high performance fuel system! Fuel Filter Replacement Guidelines Racing - Inspect at least twice a season and replace as needed to...

The Precision Raceworks Micro Regulator is the worlds smallest universal regulator. This unit comes pre-set/calibrated from our factory with precision tolerance so there is no guess work or best effort to set target pressure. Want to regulate your fuel at the engine to have...

The Precision Raceworks G-Series High Performance Primary fuel pump (Kits) are designed for customers looking to run all blends of E85. These pumps are ideal for customers looking to run a single fuel line to the front of the car and feed the high-pressure fuel pump...

Bundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Coolant Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options so there is...

The Precision Raceworks Engine Coolant Reservoir Cap is a functional and stunningly stylish way to add a nice touch to any engine bay! This cap come in three color options so there is always a color that will work for you! Black with Billet,...

The Precision Raceworks Auxiliary Coolant Reservoir Cap is a functional and stunningly stylish way to add a nice touch to any engine bay! This cap come in three color options so there is always a color that will work for you! Black with Billet,...

The Precision Raceworks Plug-n-Play Ethanol Sensor Breakout Harness allows you to have a clean wiring solution to split the signal coming from your ethanol sensor between 2 analyzers (Example signal going to ECU or controller and to a gauge or Bluetooth display at the...

This Plug-n-Play Ethanol Sensor Harness from Precision Raceworks is certified by Motiv and directly compatible with the ReFlex+. This harness is a must for anyone wanting to connect an Ethanol Content Sensor to your Re|Flex+ allowing control based on real time ethanol content. For...

The Precision Raceworks S58/B58 Plug and Play Install Harness for the Motiv ReFlex+ is certified by Motiv and a must for anyone adding a ReFlex+ to their S58 or B58 vehicle! With this harness, there is no cutting, crimping, or splicing of your factory...

This is the same pressure switch that comes with all of our pump activation harnesses. It includes wires attached with the same 2-pin connector found on our pump activation harness. Available as 13psi or 30psi switches.

Introducing the Precision Raceworks In-Line Fuel Filter! This fuel filter features a precision machined aluminum body and fittings. AN8 female ORB on each end. *Does not include any mounting Recommended Fittings for ends AN-8 ORB to AN-6 Male Flare AN-8 ORB to AN-6 Female...