GT Performance Mods 2005+ Mustang GT Performance and Technical Information

kind of wish the brakes were better. my

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Old 3/9/05, 09:06 PM
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other vehicle is a bmw x5 and it just brakes alot better then the gt. i know its a 50k vehicle but it also weights at 6005 lbs. anyone getting brembo brakes? how much for GT?
Old 3/9/05, 11:11 PM
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Originally posted by elvism@March 9, 2005, 10:09 PM
other vehicle is a bmw x5 and it just brakes alot better then the gt. i know its a 50k vehicle but it also weights at 6005 lbs. anyone getting brembo brakes? how much for GT?
Brakes good nuf for me. How fast do u want to stop anyhows?
Old 3/10/05, 04:50 AM
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Upgrade to an aftermarket brake pad. I'm sure you will be happy.
Old 3/10/05, 06:17 AM
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It's hard to compare BMW brakes to almost any other car. My sons have/had BMWs, and I've never experienced better brakes! Makes my Volvo look pathetic.

I don't think you'll get BMW level braking in a Mustang, but you can upgrade to performance pads, as an easy upgrade
Old 3/10/05, 11:03 AM
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Baer also has a front brake upgrade currently available. It is right at $1000 and it includes 14" rotors but reuses your existing calipers. I have not seen any tests on it, but if it is the same quality as most Baer products, it should be a definite improvement!
Old 3/10/05, 11:19 AM
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Originally posted by RRRoamer@March 10, 2005, 1:06 PM
Baer also has a front brake upgrade currently available. It is right at $1000 and it includes 14" rotors but reuses your existing calipers. I have not seen any tests on it, but if it is the same quality as most Baer products, it should be a definite improvement!
Already!? Man, when I emailed them in December last year they said it would be almost a year until they would have a kit out. :shock: Baer makes GREAT brakes! Stoptech has something out too I believe, I could ask a friend that works there if anyone wants to know how to get them. Anyone know when Brembo is coming out with something?
Old 3/10/05, 12:50 PM
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Yeah, right now I am driving my dads 2004 M3, and let me tell you, there is NOTHING like BMW brakes combined with BMW DSC traction control. End of story, nothing comes close. The mustang is a whole different animal..... gotta plan you stops a bit better.
Old 3/10/05, 03:08 PM
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Your best bet would be to do a few cheap upgrades. First, stickier tires will make the biggest difference in your braking capabilities. Next, go buy a set of SS lines and performance pads(if available).
Old 3/10/05, 09:34 PM
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Mine seem fine but unless you want the asthetic upgrade, may get what you want from simple pad upgrade. They have some slotted and drilled rotors available for the 05 but I never heard of the company. Have not found anything on the Brembo site for the 05 yet.
Old 3/10/05, 11:38 PM
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Originally posted by emperorjordan@March 10, 2005, 1:53 PM
Yeah, right now I am driving my dads 2004 M3, and let me tell you, there is NOTHING like BMW brakes combined with BMW DSC traction control. End of story, nothing comes close. The mustang is a whole different animal..... gotta plan you stops a bit better.

Good point - except that the Mustang fully loaded is 27K...hard to compare apples to apples with a car costing almost twice that much...no offense meant - but just keeping the playing field level For a "bargain" performance car - the Mustangs stock brakes are pretty good out of the box....not that upgrading is a bad thing!!

On another note - what kind of hp is your dad's M4 making? What are the 0-60 times for an M4 - just curious - thx
Old 3/11/05, 07:38 AM
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I think the braking in my '05 Mustang is fine. However, I wouldn't mind getting some new slotted rotors. Mainly just to get ones that have the protective finish on them and won't rust like the stock ones. Not only does the rust look bad and then drips down into the insides of the wheels, but the dust get's all over the wheels when you brake. I know there are some aftermarket front brake rotors out there, but what about rear rotors?
Old 3/11/05, 07:39 AM
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steeda has a kit that is wayyy overpriced IMO,the BAER kit is up there too from what I understand but probably very good.brembo will be top dollar too , but also very good..Stoptech has a kit now, but is about $2500 and will not work unless you have ATLEAST 18's on the car & only some 18's will work.Powerslot should have rotors out very shortly and they are usually resonably priced and I have used their stuff in the past with good success.Stainless Steel brakes also will be releasing a kit shortly and their stuff is good.
Old 3/11/05, 08:09 AM
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I switched from the narrow, hard Pirellis (treadwear 700, width 235) to soft-compound Kumhos (treadwear 280, width 255), and that alone made huge difference in stopping distances.

The pedal is still a little soft and difficult to modulate. An aggressive, Hawk-type street pad would provide a lot more "grab," but there aren't a lot of choices yet.

More serious hardware -- stainless lines, slotted rotors, race pads, etc. -- won't make much difference unless you do track days or a lot of mountain driving. And they'll make things worse when they're cold, which would be most of the time.
Old 3/11/05, 09:12 AM
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Originally posted by dtoups@March 11, 2005, 10:12 AM
I switched from the narrow, hard Pirellis (treadwear 700, width 235) to soft-compound Kumhos (treadwear 280, width 255), and that alone made huge difference in stopping distances.

The pedal is still a little soft and difficult to modulate. An aggressive, Hawk-type street pad would provide a lot more "grab," but there aren't a lot of choices yet.

More serious hardware -- stainless lines, slotted rotors, race pads, etc. -- won't make much difference unless you do track days or a lot of mountain driving. And they'll make things worse when they're cold, which would be most of the time.

I diagree on the last part. While SS lines don't decrease braking distance, they do increase brake feel, which you will use everyday.
Old 3/11/05, 09:42 AM
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sorry, yes, you're right.
Old 3/11/05, 09:49 AM
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Originally posted by dtoups@March 11, 2005, 9:12 AM
I switched from the narrow, hard Pirellis (treadwear 700, width 235) to soft-compound Kumhos (treadwear 280, width 255), and that alone made huge difference in stopping distances.

The pedal is still a little soft and difficult to modulate. An aggressive, Hawk-type street pad would provide a lot more "grab," but there aren't a lot of choices yet.

More serious hardware -- stainless lines, slotted rotors, race pads, etc. -- won't make much difference unless you do track days or a lot of mountain driving. And they'll make things worse when they're cold, which would be most of the time.
Good point on aftermarket brake pads!! I switched out my stock LS pads for aftermarket pads and while they were great in the hills - 95% of city driving they were less effective as they didn't work real well until heated up.....all in all I wish I left the stock LS sport pads on....live and learn I guess...
Old 3/11/05, 10:44 AM
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I just put one foot out the door to stop.
Old 3/11/05, 10:56 AM
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Originally posted by porsche@March 11, 2005, 12:47 PM
I just put one foot out the door to stop.
That must be one big foot!!
Old 3/26/05, 01:49 PM
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With the brakes on the '05 there's no need to compare them to a BMW to see they're not that great. Right after mine came in, I got back in my '03 and when I just barely touched the brakes, it came to a "jerking" stop because I was expecting the '05 "feel" since I had just gotten out of the new one.
MUCH better pedal feel and braking power. I agree with dtoups, they're too soft. The car doesn't see any track time so I'd just like better brakes for the real world. Besides, I'd feel a lot safer when some idiot pulls out in front of me.
Should I just upgrade the pads? I'm already planning on new tires (255's with a 300 tread wear) Just waiting on the new FR500's for the '05.
Old 3/26/05, 09:50 PM
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Porterfields R4-S compound are some of the best I've used. They make pads for several major racing distributors who rebadge them.

Porterfield just completed testing and released Pads for the 05; no part numner yet, just calling them 05 Mustang Pads
Pricy but great pads (Front-$179, Rear-$119). Expect they'll come done under a C-note after orders start materializing.
Replaced pads on my main driver today (after 95000 miles on this set) and they STILL had 25-30% remaining life. The cryo treated rotors were in excellent shape and I got minimal brake dust on the chrome rims from these pads over the past 2 years. Mostly freeway miles w/LA panic stops in rush hour ... previouly was replacing OEMs on my truck at 30-40k intervals... just turned 185K
http://www.porterfield-brakes.com/pads.html


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