I'll be honest I own a 16 mustang gt auto 3.55 gears. All I have done is our tune which is a flex tune and driveshaft swap along with our cold air. I ran a 12.3. Most 5th gens I beat unless they have like cam and heads or a blower. Which is why my cousin sold his and got the zl1 so he can beat me again lol. Have fun guys
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