LSJ Throttle Body Spacer Plate

Aluminum spacer plate that allows easy hookup of either Meth or Nitrous injection, and/or the larger LS4 throttle body. The "Model" drop down will give you the option to either purchase the basic meth/nitrous spacer plate, or to add the LS4 machining required to install an LS4 throttle body on a stock inlet blower. Includes: 1/2" CNC milled aluminum 1/8" NPT ports. Standard comes with 1 port, LS4 has 2.  Rubber O-ring gasket M6 stainless steel bolts  February 2025 Update: Our LS4 spacer has now been updated and includes a small "lip" to aid in drivability and the "touchiness" generally attributed to swapping to an LS4 TB.