Kit includes:
- Hi-Flow Performance Plenum Lid - Proudly made in Australia
- Twin 68mm Whipple Throttle body
Hi-Flow Performance Plenum Lid
The Ultimate Upgrade to Ford XR8 and GT Boss 260, 290, 302 & 315 Engines
Yella Terra is proud to announce the Hi Flow Performance Plenum for the 5.4 4V Boss Engine. The new Plenum can be used for supercharged, turbo and naturally aspirated performance engines.
The new shape of the Plenum is designed to provide a balanced hi volume air flow to each port runner. The ability to get more air to your Boss engine, means more power & low end torque.
The new Yella Terra Hi Flow Performance Plenum, has been designed to accept a larger twin blade or oval mono blade throttle body while maintaining the factory look.
With the ever increasing demand for power this hi flow plenum delivers an increased 95% flow capability ideal for any performance boss engine.
PRODUCT FEATURES:
- Unique hi flow quality design
- Designed to address Fords uneven air delivery to port runners
- 20% volume Increase over Standard Factory Lid
- 95% increase in flow capability
- Increases torque and mid range power.
- For high HP applications when T/B size becomes a restriction
- Available in Heavy Duty Powder coated BLACK
- Easy fit utilizing original factory fittings and MAP sensor
- Can be used with original engine cover and top decal plate.
- Suits N/A FORD XR8 & FPV (BA, BF & FG) 5.4 4V BOSS 260, 290, 302 & 315
- Suits Yella Terra Boss S/C kit
Twin 68mm Whipple Throttle body
With the ever increasing demand for power, YellaTerra now offers one of the highest quality and highest flowing (1630cfm) fly-by-wire dual blade 68mm throttle body available today.
The Whipple Twin 68mm is a great throttle body for both daily drivers and weekend toys. It significantly outflows the competitions dual 65mm (1517cfm) and stock Ford FPV FG twin 60mm throttle bodies (1130cfm), while still having excellent idle and drive-ability manners. It also conveniently bolts straight onto our Yella Terra Hi-Flow Plenum Lid!
The Twin 68mm throttle body is ideally suited for high performance naturally aspirated engines as well as supercharged applications, offering noticeable increases in power and throttle response.
This throttle body includes a new throttle motor, IACV, and throttle position sensor already installed. This makes for an easy "bolt-on" installation experience, and means that your original throttle body can be sold on as a whole unit or kept safe for originality's sake.
These throttle bodies may require special/custom tuning.
