1991 740 exhaust modifications

designerbrown · Post by **designerbrown** » 12 Jul 2012, 11:34

thoughts on inexpensive, beginner/novice exhaust modifications to enhance performance on my stock 740 sedan?

lummert · Post by **lummert** » 12 Jul 2012, 12:58

install larger exhaust from 740/760/940 Turbo on non-Turbo 740.

designerbrown · Post by **designerbrown** » 16 Jul 2012, 11:00

Ok Thanks.

lummert · Post by **lummert** » 16 Jul 2012, 16:58

When installing the turbo exhaust on an N/A car an adapter (reducer) may be needed to connect to the existing downpipe and converter.

designerbrown · Post by **designerbrown** » 19 Jul 2012, 18:39

Hey thanks,

I just went with OEM.

lummert · Post by **lummert** » 19 Jul 2012, 22:32

The exhaust for a 91 740 Turbo is also OEM, but with larger pipe.

designerbrown · Post by **designerbrown** » 21 Jul 2012, 06:47

ok right. I just decided keep it simple and do from the converter back with Starla ($200 complete). Would it impact performance if i swapped out a muffler with a glass pack or Thrush "turbo muffler" or just sound loud and cheesy?