Re:TBO3 or T3 ????
 

his adapter plate seems to seal it fine, but you'll need to use a gasket. I haven't boosted it yet so I can't say with 100%.if you want to make 100% sure send him a template and he should be able to match it. or wait till next week, I should have it installed on my car by then depending if the rain stops long enough :-\
B