FORD V8 BOSS 5.4L HI-FLOW PLENUM LID (BLACK)

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
• Uses the genuine Ford twin 60mm blade OR Whipple Billet Duel 68mm (YT 5400TBWT68) or Mono blade throttle body (YT 5400TBW)
• 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

NOTE:

• Throttle body (YT5400TBWT68E) not included
• "BOSS 290 Plate" Not included, for Illustrative Purpose ONLY
• Freight Costs to be calculated by YT Staff after Checkout, freight costs are dependent on location