Good Morning everyone, So heres the deal...i have a 289 in my truck with headers and dual flowmaster exhaust...sounds great. I just did some upgrades to the motor, heads with bigger valves and higher compression, new air gap intake. The truck runs great...tons of power. The only issue is the exhaust is very very loud! now. It took the rumble out of the exhaust sound and turned it into a snappy scream. Any ideas of different mufflers/ Thank you for your input. Larry