71 C10 exhaust swap Spintech 6000

Swapped cheap turbo mufflers with Spintech 6000

[@pvmsupra9607]

Sounds so much better!

[@user-cm1yo7uq5k]

Sounds amazing

[@stixracing]

Thanks!

[@BryMed86]

Engine info?

[@stixracing]

It is a stock 5.3 from a 2002 Chevy avalanche. Using upgraded summit springs and summit 8713R1camshaft. Long tube headers 3 inch to 2.5 inch at the muffler.