Perrin Performance Top Feed Fuel Rail Set Tuner Style (Fuel Rail Bodies Only)

No Tuning Required
Increase horsepower and torque without ECU recalibration or tune! This part is designed and tested to work safely on your vehicle without any tuning required! However, more power can be gained with proper ECU tuning! Confirm any tune or recalibration you add is specific for ALL modifications added to the vehicle.

DIY Kit
For customers looking for even greater flexibility with their custom builds, look no further than the PERRIN Top Feed Fuel Rail DIY Kit. Some custom fuel setups only require fuel rails and not a junction block, and this kit is here to fill that requirement.

High-flow
PERRIN Top Feed Fuel Rails incorporate large 0.520" inside diameter channels for maximum fuel flow. This allows for cars to run beyond 800 WHP safely and without inconsistent fuel flow to each cylinder.

-6 AN Fitting Compatibility
The PERRIN Fuel Rail DIY Kit is threaded for male 9/16-18 fittings, utilizing an O-ring seal. These are the same as a typical -6 AN fitting with an O-ring seal, also referred to as ORB fittings. These fittings are widely available and in all shapes and colors--whatever suits your build.

Built-in Phenolic Spacers
All PERRIN Fuel Rails come with built-in phenolic spacers. These spacers insulate the fuel rails from the 200°F cylinder heads. This keeps fuel closer to its normal ambient temperature. These spacers reduce the temperature of the fuel upwards of 30°F.

Construction & Finish
PERRIN Fuel Rail bodies and junction block bodies are precision CNC machined from 6061 billet aluminum with black anodized finish for corrosion protection and a clean looking finish. All ports are marked with "Feed" and "Return" for ease of installation.

Optional Junction Blocks
The PERRIN Fuel Rail Junction Blocks make for a clean transition from OEM rubber hoses to your PERRIN Fuel Rails. Like the PERRIN Fuel Rails, the PERRIN Junction Blocks are threaded for male 9/16-18 fittings (-6 AN), utilizing an O-ring seal.

Specs
Material CNC Aluminum
Finish Black Anodize

P/Ns
PSP-FUL-220BK

In The Box
(2) PERRIN Top Feed Fuel Rails
(4) M8 x 20 Socket cap screws
Warranty & Instructions

Compatibility
2002-2014 Subaru WRX
2007-2021 Subaru STI