Right, so I sanded the spacer and the TB too
zackmd1 I sanded around 2 mm off the spacer on the top right corner and 1 mm off the thinness of the same corner, and you need to make the bottom right corner 2 mm thinner to clear the two little knobs on the TB
Does anyone know if the Roush...
How about if you take the coupler off and watch the TB butterfly while someone revs your car? I don't know if that's ok for the engine but you should see if the TB is functioning properly