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3.73 or 4.10 or cai with tunner?

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Old 01-27-2013, 01:47 AM
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mustang_gt808
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Default 3.73 or 4.10 or cai with tunner?

ok guys im confuse with which one to get i wanna feel the most diference my mustang is a daily driver im not a racer i just like the feel of power i drive 60-70 mph everyday what would u guys install?? 3.73 or 4.10 gears or intake and programmer? all i have is a pypes muffler delete exhaust system thats it thanks my car is a 5 speed manual

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Old 01-27-2013, 02:14 AM
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07BLACKGT
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Intake and tune first.

The gears don't make a difference when accelerating from a 60mph roll. They don't give you any more "power".

4.10's make an incredible difference when starting from a stop or accelerating from a low-speed roll.
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Old 01-27-2013, 06:30 AM
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Vader GT
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CAI w/programmer hands down!! Followed very closely by gears by the way.

OP it also all depends what your end goal is. For example I purposely bought my car with 3.55's as I knew I was going forced induction (roots type). So for my set-up, 3.55's is perefect. Just something to thik about.......
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Old 01-27-2013, 06:49 AM
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Nuke
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You'll need the handheld to adjust the speedometer if you get gears so the CAI & tune first, IMO. The combo adds power and improves driveability; gears do not add power.

Do you mean that you drive 60-70 "miles" per day? Regardless, going from your stock gears (do you know if you have 3.31's or 3.55's? I believe 3.31's were pretty much standard on the '05 and '06?) to 3.73's or 4.10's will impact your fuel mileage, especially running at highway speeds. Assuming you go from 3.31 to 4.10 and you drive highway, I'd expect about a 3-5 MPG loss, possibly more.
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Old 01-27-2013, 06:55 AM
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mayo
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It all starts with the cai/tune my man.
Long term hp goals and driving habits must be taken into consideration for
proper gear selection. Take some time to think about that before you pull the trigger on gears.
Go with a choice from brenspeed or am (bama) for your cai/tuner package.

Last edited by mayo; 01-27-2013 at 09:11 AM.
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Old 01-27-2013, 07:03 AM
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Hmmmm, guess I should have asked that also, Mayo. I'm slipping in my old age.

OP, what ARE your goals for modding and how do you drive (i.e., track, motorx, city, highway)?
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Old 01-27-2013, 08:32 AM
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05 Mustang
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As others have said, CAI & tuner.

2005's came with 3.55's....rule of thumb when switching gears is to go up 2, which would mean going with 4.10's.....from there, people definitely have different opinions about 4.10's. Me personally, I think they're too much.
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Old 01-27-2013, 11:37 AM
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Vader GT
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Originally Posted by 05 Mustang
As others have said, CAI & tuner.

2005's came with 3.55's....rule of thumb when switching gears is to go up 2, which would mean going with 4.10's.....from there, people definitely have different opinions about 4.10's. Me personally, I think they're too much.
I would agree, IMO 3.73's for a 5 speed, 4.10's on a 6 speed & 3.55's on an auto would be the most I would go. Again, this is MY opinion based on my experience.

I bought my car deliberitely with 3.55's from the factory because my "master" plan was to add a roots type blower, which I did. So I did keep the 3.55's & the combo works great for the street & occasional track run. My car IS a 5sp.
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Old 01-27-2013, 02:43 PM
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thank you everyone i will think it over
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Old 01-28-2013, 10:52 AM
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baddog671
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Originally Posted by Nuke
Do you mean that you drive 60-70 "miles" per day? Regardless, going from your stock gears (do you know if you have 3.31's or 3.55's? I believe 3.31's were pretty much standard on the '05 and '06?) to 3.73's or 4.10's will impact your fuel mileage, especially running at highway speeds. Assuming you go from 3.31 to 4.10 and you drive highway, I'd expect about a 3-5 MPG loss, possibly more.
A 2005 GT w/ manual SHOULD be a 3.55.

A forget the 07-09 years completely, but I'm pretty sure 2005 and 2006 v6 were 3.31, GT automatics were 3.31, and GT manuals were 3.55 with an option of 3.73.
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