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I had the misfortune of having my lower caliper bolt strip. I was using a torque wrench and I wasn't even near the torquing point when it failed. I think its because I change my pads too often (14 times over the last 7 track events). I've contacted a local shop that I use and they say it happens quite often. As my car is still under the CPO warranty, I was wondering if anyone had any luck convincing Porsche that this was a design flaw? I realize this is a shot in the dark but I figure I have nothing to lose. Thanks in advance.
 

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That is why I wanted to switch to studs to replace the bolts. Lower left knuckle stripped on the installation.


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Feel your pain, and for all those who read my previous posts again studs - mea culpa. Blew this big time. Its tempting to say its only for those who track and change pads but I would suggest changing to studs ASAP. I'm also considering this for my wheel bolts since they are starting to show signs of rounding.
 

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Shortly after taking delivery of my GT4 four years ago I added wheel studs and Tarett Engineering brake caliper studs all around. No issues and makes tire changes faster/easier and no concerns about cross threading or stripping uprights. I also installed Spiegler flexible brake lines to simplify pad changes. All relatively inexpensive and highly recommended if you track your car (I.e. regular wheel and/or pad changes).


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There has been some discussion on caliper stud length in another post. Unless they have changed them, the studs recommended by Tarett for the 981 are a bit short. I went with one size longer and they work great. You might want to dig up that thread if you are contemplating purchase.

One other thing - go ahead and buy the studs for the wiring hardnesses. I didn't buy them and every time I change the front pads I really wish I did. Those bolts are a PITA to get inserted correctly.
 

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Speaking of which - has anybody heard of any recent deals (group buy or otherwise) on Tarett caliper studs?
I have a front set I removed when I upgraded brakes on my 14 Cayman S. They were installed on the car for 1 year and used for 6 track days. Both Tarett and ProSpeed (NASCAR brake provider) have the same stud protrusion beyond the nut FWIW.
 

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So you are changing brakes twice for every event. What do you change track pads and back to street after ??
 

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So you are changing brakes twice for every event. What do you change track pads and back to street after ??
The track pads I've used (Pagid RSL-29 or PFC-08) glaze and squeal like a stuck hog when you run them on the street. They need the heat. So, I swap pads before and after every event and also swap out my street/track tires.

It takes about 70 minutes to do a 4-wheel brake job.
 

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I figured that but they don't have to squeal like that to be good track pads.
I'm sure you find pads that are fairly quiet. I haven't tracked in years but I stopped using Pagid for that reason.
 
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