Radium Fuel Rail - BMW 3 Series M3 E36/330i E46/Z4 E85 (M50/M52/M54/M56/S50/S52)
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This Radium Engineering fuel rail is CNC machined from extruded 6063 aluminum, black anodized, and laser etched for a high quality surface finish. They are compatible with all fuel types including popular alcohol mixtures such as E85. Like the OEM fuel rail, the fuel injector bores are 14mm ID so factory injectors can be used, or any aftermarket injector with the same height and O-rings sizes. Furthermore, provisions for the OEM injector retaining clips are provided.
The fuel rail has three 8AN ORB threaded ports in total. Optionally, Radium FPD-R or FPD-XR fuel pulse dampers fit in the center fuel rail port. Optionally, Radium DMR fuel pressure regulator can be used on either end.
This fuel rail features three 8AN ORB ports, one in the center and one at each end. O-ring style fittings must be used in these ports. No fittings are included with this fuel rail and must be purchased separately. Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.
INCLUDED
- Black Anodized Laser Etched Fuel Rail
- Mounting Feet for all Compatible Engines
- Stainless Steel Mounting Hardware
 Compatible with the following BMW engines:
- M50
- M52
- M52TU
- M54
- M56
- S50
- S52
BMW M50 / S50
The BMW M50 / S50 intake manifold is shown above.
NOTE: Compatible with the North American S50B30US. Not compatible with ITBs found on the non US "S50B30" and "S50B32".
As shown above, the provided mounts for these engines are manufactured from anodized billet aluminum.
BMW M52 / S52
The BMW M52 / S52 intake manifold is shown above.
As shown above, the provided mounts for these engines are manufactured from anodized billet aluminum.
BMW M52TU / M54 / M56
The BMW M52TU / M54 / M56 intake manifold is shown above.
NOTE: not compatible with OEM M56 "coupling-type" fuel injectors.
As shown above, the provided mounts for these engines are manufactured from stainless steel and polished.
What clients say
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Really fast and high quality customer support, my order got to me faster than the quoted time too. No complaints
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The team took a mostly broken car after some work done elsewhere, and have systematically made it reliable and fast for a fair price. The staff are invested in the work they do which also makes a big difference.
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Jeff was extremely helpful in assisting me with my exhaust. Always kept me updated and answered any queries in a timely manner. Will definitely be coming back for my future mods
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Justin and his crew is amazing! Always ready to help and service with a smile. Trusty, friendly and reliable! Had my car sent in for repair twice and it’s fixed on time, at a reasonable price and with no issues. Highly recommended!
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Easy to deal with and part was ordered quickly
