The exhaust sound of New cars vs Old

The fuel injection does something to fag out the exhaust note, IMO.

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This is the main difference. FI completely changes the sound of the exhaust at idle. A muscle car's idle isn't a steady RPM...it fluctuates slightly and is rough in comparison. You can't duplicate that sound with FI. Camshaft design has a lot to do with it as well.

I like the sound of a lot of different engines. I used to have an 02 Stratus R/T...the two door version with a 3.0 Mitsubishi V6. I had a Magnaflow muffler on it and it sounded really mean. Not loud and annoying...kind of exotic sounding.

The 90's Chevy trucks sound AWFUL. So do the Chevy V6 engines.(2.8/3.8/3300/3800 exc...)