Thank you walgamuth. Running one muffler sounds good. The '88 190E in the pick&pull still has its diff. My car has some of the bushings gone bad in the rear suspension links. So sooner or later I'll be working on that end of the car. Would the gasser diff have a higher ratio than the diesel diff?

I also thought about tires one inch greater in diameter. For every turn of the wheel the car would go 3 inches further down the road.

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1st MBz: 1982 300SD
2nd MBz: 1987 300SDL
3rd MBz: 1995 S420
4th MBz: 1987 190DT
5th MBz: 1984 300SD w/1983 300DT engine
6th MBz: 1999 C230k I'm 3rd owner, got it w/57,235 miles.
and manages Mom's 2007 R320 CDI