hello again,

i have a garrett 57trim 4 bolt exhasut housing turbo, what size gasket and flange am i suppose to get if im doing a 3" down pipe? the 4 bolt exhaust housing is smaller than 3" i think its just 2.25" or 2.50", one of those. lmk thanks

 

I did a 2.5" flange and a small 2.5"-3" transition piece of stainless pipe, then 3" all the way back.

 

where u order the flanges?