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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Sep-09-2018, 06:21:59 PM   #141
ftapache
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Default Re: Best subframe repair options as of July 2018?

Does the subframe need to be addressed if you're not planning on taking the car to the track? Daily driver and planning on keeping it for a very long time.
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Old Sun, Sep-09-2018, 06:24:39 PM   #142
duracellttu
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Default Best subframe repair options as of July 2018?

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Does the subframe need to be addressed if you're not planning on taking the car to the track? Daily driver and planning on keeping it for a very long time.


Bottom line, yes. I only tracked my car twice in 10 years and still had cracks at 130k miles of DD’ing.

Even if you are low miles and don’t currently have cracks you should come snider doing it preventively. Especially if you are planning to keep the car long term.
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Old Wed, Sep-12-2018, 05:44:42 PM   #143
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Default Re: Best subframe repair options as of July 2018?

Anyone know if CMP or redish plates alone are enough? I will autox maybe 4x a year and track 2x. Car has been inspected for cracks and none are visible so far @ 93k miles
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Old Wed, Sep-12-2018, 06:25:26 PM   #144
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Default Re: Best subframe repair options as of July 2018?

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Anyone know if CMP or redish plates alone are enough? I will autox maybe 4x a year and track 2x. Car has been inspected for cracks and none are visible so far @ 93k miles
I don't believe anyone can answer that question definitively. You could install redish plates and never have an issue. Conversely maybe you will have issues. Many, many factors to consider. If it was me and I intended on tracking the car then I would do both and wouldn't think twice about it.

Edit: An before someone chimes in, , tracking the car has nothing to with whether or not an issue could arise concerning the RACP with re-enforcement plates installed. I'm simply stating that if it was me and I'm going to push the car then undoubtedly I would do both.
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Old Wed, Sep-12-2018, 06:29:21 PM   #145
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Default Re: Best subframe repair options as of July 2018?

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Anyone know if CMP or redish plates alone are enough? I will autox maybe 4x a year and track 2x. Car has been inspected for cracks and none are visible so far @ 93k miles
Redish plates have been out for some time now and so far no issues reported. Problem is how many people properly check afterwards,...or check at all.

I have redish plates and feel comfortable enough to daily the car without worry. However I still plan to add a Vince/cmp bar soon, but I’m not rushing it at all
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Old Wed, Sep-12-2018, 08:17:44 PM   #146
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Default Re: Best subframe repair options as of July 2018?

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Old Wed, Sep-12-2018, 08:39:01 PM   #147
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Default Re: Best subframe repair options as of July 2018?

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Is this just a bolt in install ?
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Old Thu, Sep-13-2018, 05:47:06 AM   #148
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Default Re: Best subframe repair options as of July 2018?

Quote:
Originally Posted by supremekp View Post
Anyone know if CMP or redish plates alone are enough? I will autox maybe 4x a year and track 2x. Car has been inspected for cracks and none are visible so far @ 93k miles


Quote:
Originally Posted by oceansize View Post
I don't believe anyone can answer that question definitively. You could install redish plates and never have an issue. Conversely maybe you will have issues. Many, many factors to consider. If it was me and I intended on tracking the car then I would do both and wouldn't think twice about it.

Edit: An before someone chimes in, , tracking the car has nothing to with whether or not an issue could arise concerning the RACP with re-enforcement plates installed. I'm simply stating that if it was me and I'm going to push the car then undoubtedly I would do both.
Plates alone for a car that sees autox or track is not going to be enough. See my post in #132. They do not address the basic structure of it with 2 separate layers which are not connected, only strengthening the bottom layer.

@oceansize, I might disagree with your comment that tracking the car has nothing to do with issues arising with racp...even with plates. There is a reason why cmp, Vince and others have come up with designs that require welding reinforcements on front mounts from the top to strengthen that very failure prone area. There is absolutely more stress from driving hard.

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Old Thu, Sep-13-2018, 03:41:55 PM   #149
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Default Re: Best subframe repair options as of July 2018?

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Does the subframe need to be addressed if you're not planning on taking the car to the track? Daily driver and planning on keeping it for a very long time.
Only cars i've seen with hint of cracks were on non smg dogged cars. If you beat the %&^( out of your car you will need whole nine yards...

PS including driving like an idiot on public roads
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Old Sat, Sep-15-2018, 08:00:03 AM   #150
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Default Re: Best subframe repair options as of July 2018?

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Being new owner of less then 2 weeks and having my car inspected for subframe damage (none found)...I have ask on this forums for reputable shop that reinforces the rear as preventing precautions..I received no contact informatio help...So in went on Google Search for E46 M3 specialist (New to south Florida) and called 5 indy shop ...1 dealership and all of them said that they have not seen any E46 M3 coming with cracking...now 4 of them did say similar things regarding subframe...how hard are you driving the car? Do you track? Hard lunches? Is car lowerd/slammed? With this combination you may see this occurre... for the most part they said stop reading e46 forum Haha! ... but what I read on here scares me... I contacted EGA and pretty much said the same, small number E46 there ever seen with subframe cracking they don't just sell cars but also have great service department.
My '02 M3 had two hairline cracks forming after I owned it for 9 years. I didn't know that dumping the clutch for hard launches was a bad idea when I first got it, so I did that 4 or 5 times and I suspect that's what caused the small cracks to start.
I only tracked the car once.
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Discussing Best subframe repair options as of July 2018? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)