** READ BEFORE PURCHASING ** Improve your throttle response and horsepower with this larger throttle body. The stock LTG 2.0 liter throttle body is 59mm, however the inlet of the intake manifold is nearly 67mm. This is a bolt on larger throttle body for your 2.0 LTG. How to select the proper Version option:  (charge pipes are considered the intercooler pipes) Full Kit: This kit includes the larger throttle body, MAP tube, coupler, and 3 clamps. Everything needed to properly connect your factory charge pipe to the new larger throttle body. You need this option if you do not have ZZPerformance intercooler package. Includes: Throttle Body Silicone coupler MAP tube (3) clamps   Throttle Body Only: This will include just the larger throttle body by itself because the ZZP ATS or Camaro  intercooler package already comes with the proper couplers/map pad/clamps that you will need to install this larger throttle body. Verified fitment on ATS, CTS, and Camaro. Will not fit Regal or Malibu. The throttle body will physically bolt on any LTG engine, however you will need to fabricate your own MAP tube or coupler solution if mounting on any LTG vehicle outside of the ATS, CTS, or Camaro. Note: The larger throttle body has a partially machined edge on the lip for easier coupler installation/removal. This does not make the throttle body defective, it is intended to be that way. Make sure to tighten the coupler.  NO TUNING REQUIRED! Direct plug and play. Note: Disconnect negative battery terminal before installation. If this step is not taken the car may take a few cycles to relearn the larger throttle body. CLICK HERE for Digital Install Instructions