5.75" S400 T6 Chassis Marmon Downpipe Flange W/Clamp

Buick ttype ls s485 t6

Customer service was awesome. NICK helped me choose the right turbo for my setup. Very helpful and fast.. thanks again

Exactly what I needed

Very happy with purchase. Welded great, smooth just like their aluminum assemblies. When no one else could come through BSI hits it out of the park.

BSI strikes again

Nice piece, smooth machining, nice and thick making it easy to weld