One of the limiting factors of tuning engines is ensuring that each cylinder is receiving the same amount of fuel and air as the next, with an AFR gauge only providing an average of all 4, in the case of the MX-5, it’s fairly common for the 4th cylinder to run leaner than the others, meaning we must compensate with more overall fuel, lowering how much power we can make.
One of the reasons for this is the intake design but additionally, the design of the stock fuel rail with the inlet and outlet on the same side will cause differences in pressure / flow across the rail.
What this radium fuel rail allows you to do is run a dual feed, or a single feed one side with a return on the other – ensuring the correct fuel flow across all 4 cylinders, it also has a larger bore and will take the added fuel pressure an upgraded adjustable fuel pressure regulator can provide.
This is for the NA 94-97 engines and comes with a fitting kit.
Optional Plumbing Kit Includes:
8AN ORB to 5/16″ Barb Fitting
8AN ORB to OEM FPR Fitting
8AN ORB Plug
Vapor Shield 5/16″ Fuel Hose
Fuel Rail Kit Includes;
-Black Anodized Laser Etched Fuel Rail
-Stainless Steel Mounting Hardware
-Phenolic Thermal Insulating Washers
Warranty information
Warranties cover defects in materials and workmanship only. Warranty is for replacement of a similar product, repair of the original product or refund of the purchase value only and excludes all labour and incurred charges including towing, fitting, inconvenience, and purchases of other manufacturer's products. The warranty is good for the period stated in the additional info tab from the date of purchase. Mileage warranties are for road use only and proof of mileage is required. Products must be installed by an independent experienced professional mechanic and the suspected defect must be present at the outset. The warranty does not cover damage caused by incorrect installation, failure to comply with the maintenance requirements of the vehicle, processing or otherwise changing the product, ordinary wear and tear, or any other external influences. Warranties are invalid if the product is used for racing, rallying, drifting, track days or any other form of motorsport or competition. Please refer to the manufacturer's own warranty documentation for more information.
Making a warranty claim
Proof of purchase receipt showing the date of purchase, proof of mileage at installation, proof of current mileage and invoice of the work undertaken by an independent experienced professional mechanic must be supplied along with the returned products for a warranty claim to be considered. If your vehicle needs to be used whilst your warranty claim is considered replacement parts from the same manufacturer should be purchased through BOFI Racing. In the event of a successful warranty claim, we will refund the card that was originally used to purchase the replacement parts, in full or in part depending on the nature of the claim. BOFI Racing reserves the right to make full or partial compensation at its sole discretion depending on the condition and mileage use of the returned suspect parts. For example, if you have used the part for several thousand miles before a defect is noticed, only partial compensation may be offered.
