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Discussion Starter #1
ive got a v6 mustang, and i like top speed. im in the process of giving it more hp. i currently have a cai and plan on a new throttle body and a cat back exhaust system. so for highway haulin' top speed, do i want 4.10 or 3.73, or some other ratio gears?
 

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Discussion Starter #2
...or are they both going to decrease top speed from stock gears?
 

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They will decrees your top end speed just on what type of gears is the over all factor. Gears help you get into your rpm range faster then hitting a top speed. I got 4.10s in mine and have a great off the line feel. On the highway doing about 70 I am running about 2400-2500 rpms and I get about 25mpg as well.
 
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They will both drop your top speed.

Edit: Also, unless you plan on running forced induction (Turbo, or supercharger), skip the throttle body. They do very little for a normally aspirated car. I suggest you put some of that towards the gear change and a tuner. Those will give the best "bang" for your buck.
 

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Discussion Starter #5
hmmm. i never thought about the throttle body thing.

thanks dudes:bigthumbsup
 

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the top speed of 4.10s is about 160mph... that should be enough :hihi:

Just got 4.10s in my GT and I LOVE THEM!!!! There a lot of fun! :happyhapp
 
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