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The Precision Raceworks MKV Toyota Supra Stand Alone AFS™ is the highest performing and most stable low pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection!
Since direct injection came out, enthusiasts have been adding port injection.  With this came the need to upgrade the low-pressure fuel system to keep up.  Historically this was done by increasing the output of the main fuel system.  Unfortunately, the main fuel pump is controlled using PWM by a factory programmed controller designed to reduce output when target fuel pressure (typically 5 bar) is exceeded, creating a constant battle when pumps are added or upgraded.  This limits upgraded fuel pumps from performing to their full potential.
Additionally, the high pressure pump control system dumps fuel back into the low pressure system at high pressure low volume resulting in oscillations of the low pressure fuel system.  Because of this the DI system in the car is required to constantly make corrections to keep target AFR in check.
With this stand-alone low-pressure fuel system dedicated to your port fueling that is a thing of the past!  Get rock solid fuel pressures at any pressure, run fuel pressures which are 1:1 scalable to boost pressure, flow more fuel with dedicated lines, run smaller injectors and still get more fuel than you did with large injectors (allowing for higher resolution), put less demand on the car’s DI system to correct for fluctuations in pressure, even your tuner will be grateful as the system makes tuning of port fueling even easier and more accurate, the list of benefits goes on and on!
Features & Benefits

Billet Aluminum top hat with 3 high flow fuel ports
Dedicated fuel pump(s) for port injection system
Optimal pump location resistant to fuel slosh under acceleration
Fully adjustable 1:1 scaling billet fuel pressure regulator
10 micron USA made Microglass fuel filter (Ideal for E85)
Smooth bore high flow PTFE fuel feed & return lines (AN6)
All billet connections for both fuel line fittings and top-hat

Plug and play connectors inside and outside* the top hat
Configurable pump activation harness (see instructions for more details)
Increased injector flow (when using 1:1 regulator feature vs static)
Compatible with all stock or upgraded primary fuel pumps
Easily expandable and upgrade-able for more fuel
All components and parts feature 100% Ethanol Compatibility

Models & Configurations

 AFS.460The AFS.460 dedicated AFS™ comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring a single Walbro 535 (F9000295) fuel pump which flows 460LPH at 3 bar.

 AFS.800The AFS.800 dedicated AFS™ comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring Two Walbro 535’s (F9000295) fuel pumps with a combined flow of 800LPH at 3 bar.
Brand:BOOTMOD3 TUNING USATags:MKV Toyota Supra Stand Alone AFS™Pump Selection:AFS.460 (Single 535), AFS.640 (Dual 450), AFS.800 (Dual 535)