Just installed a Flowmaster 40 Street on my 4.2L
Just installed a Flowmaster 40 Street on my 4.2L
Kept the stock pipe and it sounds very good. None of this droning business I've heard about either. Sounds just like I thought it would. After X-mas I'm gonna get a tip installed. The Flowmaster 40 Street is fine, i see no need for the Delta flow. Everything worked out good.


