Chevrolet Camaro Firebird GM Truck 5.7 LS1 85mm Throttle Body 98-02 PART #17090 FEATURES: 7-12 RWHP Increase Large 85mm Throttle Body Bore for Maximum Airflow Durable CNC Machined Aluminum Casting Gaskets, Hardware and Spacer Included Designed and Manufactured In USA VEHICLE FITMENT: 1998-2002 Camaro & Firebird 5.7L LS1 V8 1999-2002 GM Truck 4.8L, 5.3L, 6.0L V8 (Cable Drive Only) 2004 Pontiac GTO 5.7L LS1 V8 Will also fit GM Vortec 7.4L 454 applications - requires the vacuum tubes to be plugged or capped Improved Power and Throttle Response Increase throttle response and power output from your 1998-2002 Camaro, Firebird or 1999-2002 GM Truck (Cable Throttle Only) with this BBK Performance 85mm throttle body. BBK Performance throttle bodies create quicker throttle response and better acceleration. This throttle body will increase airflow to your engine adding more horsepower and torque to the wheels. Top Quality Materials BBK Performance throttle bodies are CNC machined from high quality 356 aluminum castings to ensure perfect OEM quality and fit every time. Features die stamped throttle linkages double sealed bearings and o-ringed throttle shafts. Easy Installation This throttle body is a direct fit replacement for a hassle free installation. BBK Performance throttle bodies are designed and manufactured in the USA. New gaskets, hardware and spacer are included. This throttle body uses your factory throttle motor. Emissions Information This part is C.A.R.B Approved. EO Number Is D-245-17 It is Legal For use on the following GM applications in ALL 50 States: 1998-2003 GM LS1 Camaro / Firebird - 2004 GTO - 1999-2002 GM Full Size Truck 4.8/5.3/6.0 Applications