Lincoln Navigator Throttle Body Spacer

AIRAID POWERAID THROTTLE BODY SPACER, 6061-T6 ALUMINUM -- 50-state smog legal; Provides additional power between 800 to 3,000 RPM of torque; 1 in. spacer thickness; Includes power plate, gaskets, linkage plates, flat head screws, bolts, and washers; Made of aircraft grade billet 6061-T6 aluminum; Developed to enhance mid-range power, torque, and fuel efficiency; Has the unique dyno-proven helix bore that causes a spinning action of the incoming air-charge as it passes through the throttle body; Features extremely beneficial air-charge that is carried all the way into the combustion chamber to produce a super-atomized mixture, providing tremendous gains in mid-range power and overall efficiency; Will result to ultimate intake system combination when teamed up with exclusive Airaid intake systems; Made in USA; Can be used with any grade fuel; Easy bolt-on and no drill installation; With Airaid's lifetime no hassle warranty.

Fits the following 1998-1999 Lincoln Navigator submodels:

• 1998-1999: Base; 8 Cyl 5.4L; "GAS, FI, VIN L"

JET PERFORMANCE POWR-FLO THROTTLE BODY SPACER -- Precision Machined Out Of Billet Aluminum, Designed To Increase The Velocity Of Air The Flow Into The Intake Manifold Which Results In Improved Overall Fuel Efficiency, Improved Throttle Response And Impressive Power Gains In The Mid Range And Top End, Simple Bolt-On Installation

Fits the following 1998-2003 Lincoln Navigator submodels:

• 1998-1999: Base; 8 Cyl 5.4L; "GAS, FI, VIN L"
• 1999-2000: Base; 8 Cyl 5.4L; "GAS, FI, VIN A"

• 2002-2003: Base; 8 Cyl 5.4L; "GAS, FI, VIN R"

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AFE SILVER BULLET THROTTLE BODY SPACER, T-6061 ALUMINUM, NATURAL FINISH -- 50-state legal, C.A.R.B. E.O. D-516-2; Provides additional power up to 8 h.p. and 12 lb.-ft. of torque; Precision machined from solid T-6061 billet aluminum to exacting specification for optimal performance; Features a combination of serrated and helix design that creates turbulence so that the air and fuel charge is thoroughly mixed for a complete burn; Its serrated entry reduces annoying whistling sound, especially at idle and cruising speeds; It also has an additional space to increase the volume between the throttle and cylinder, improving volumetric efficiency; Known for its quiet and efficient performance that is tested to provide responsive power; Available only for applications that show dyno-proven results; With AFE's limited warranty.

Fits the following 1999-2001 Lincoln Navigator submodels:

• 1999-2001: Base; 8 Cyl 5.4L; "GAS, FI, VIN A"
• 2001-2001: Base; 8 Cyl 5.4L; "GAS, FI, VIN R"

TRANSDAPT TORQUE-CURVE MULTI PORT FUEL INJECTION THROTTLE BODY SPACER, ALUMINUM, NATURAL FINISH, SOLD INDIVIDUALLY -- 50-state legal; 1 in. thick; Includes MPFI spacer, gaskets, mounting hardware, and installation instructions; Provides additional horsepower and torque; Features TransDapt's Torque-Curve design that increases air intake volume and velocity while conditioning the air at the throttle blade for optimum performance gains and better fuel efficiency; Improves throttle response without any annoying whistles; Easy to install; With TransDapt's limited 1-year warranty.

Fits the following 1998-2003 Lincoln Navigator submodels:

• 1998-2003: Base; 8 Cyl 5.4L;