jmart69x

I have an 06 Mustang GT convertible with a 5 speed. I recently added MAC mufflers. Looks great, sounds awesome, but the cabin drone at 1800-2100 RMS is annoying especially in traffic. What affect would changing my stock 3.55 gears have on the RPM's? I was thinking 4.10 gears would make the RPMs rev higher and get me out of the drone range during my hwy cruising speeds. Any advice?

StickShifty

there is a gear calc. link somewhere in this section, you can put in your tranny and gear ratio and find what rev you will be turning.

StickShifty

here ya go

http://www.tchracing.com/tech/gearca...selectedgear=5

SINISTER

Yeah, do what he said. Here's the link: Gear Calculator

jmart69x

StickShifty, thanks alot. The site you referred me to has just the info I am looking for. Thanks again!

mustangman02232

go with 4.30s