I've been running a 2.5" exhaust with X pipe with the DynoMax 17749's in my '64 GTO convertible for 10 years. I primarily drive with the top down and the exhaust is far from loud. I put these on after installing my 462 in 2013. This exhaust replaced the 2.25" exhaust system that I had put on in 1994 when I was running the stock 389. Figured bigger motor needed a bigger exhaust. I'm very happy with it.
|