[ QUOTE ]
You should
not run an ordinary FlowMaster muffler on a diesel.
But FlowMaster now makes a special diesel performance muffler that might be okay. They come in 3.5" inlet/outlet for stock exhaust systems, or in 4" inlet/outlet for custom exhaust systems.
3.5" =
http://www.flowmastermufflers.com/pr...oducts_id=3252
4" =
http://www.flowmastermufflers.com/pr...oducts_id=3263
[/ QUOTE ]
Yes - the 4" delta force race muffler is what I have...Flowmaster is 5 miles away from my shop and we have been doing R&D with them for years...my boss got their first PSD exhaust system prototyped on his excursion.
