exhaust is TSP 3" into 4" Y w/ TSP rumbler catback.
I did the rebuild on the axle for him at the dealership and Mike also purchased and I installed a solid pinion spacer at the same time. Also if somebody doesn’t buy the turbo setup with the car and wants A/C back I have all the components still sitting at home that I bought before Mike bought the car from me. The trans rebuild was done by a master certified GM tech.
Also you forgot to mention that the rear axle hard lines were replaced w/ stainless lines from fine lines about 2 months ago.