Anyone know how to reduce the noise out of big radius 2 into 2? I mean by fitting a muffler system to pipes.

There is a system used in many factories to reduce noise from loud pipes Frank.

From memory, they are called earmuffs. Try fitting a set of those and see if its any quieter.

If you need any more assistance, please do let me know.

Stock exhaust on, ready for test. Love you all.