STM Billet Welding Purge Block for DSM Throttle Body Flange PowerTrain Technology This does require one cut

This does require one cut in factory exhaust to install

Most importantly

EFI pressures

Subaru Lineartronic® II

H8 Fog Light Fitment:

STM Billet Welding Purge Block for DSM Throttle Body Flange PowerTrain Technology This does require one cutThe STM billet purge clamping block for DSM Evo 1 2 3 throttle body flanges allows us to securely bolt a flange and easily evacuate oxygen while welding to ensure a clean, solid weld and prevent warping. The aluminum block helps draw heat away from the flange while welding and you can bolt the flange securely to the block to prevent warping. Comes with 1 8" NPT threads to accept your purge fittings. These are the same purge blocks our fabricators use