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In Reply to: E30 Exhaust Questions - Catalytic and Muffler posted by Joe on January 21, 2001 at 16:34:50:
Greg
After 160,000 miles, I believe it is time to replace my 1990 325i exhaust components. My exhaust makes a healthy groan now and I would rather have a quite setup. I was wondering if I could just go to Midas and have them put in a universal cat and muffler setup. I know it will be a lot cheaper than the stock stuff, but I also wanted to know if it will affect the engine performance in any way and will in affect fuel economy.
Any Info will be greatly appreciated!!
Joe
'90 325i