those of you with drilled/slotted brakes

where did you get them, were they good quality, if you got them from Ebay, was it an individual or a company, and are they worth a crap?

I'm getting ready to order some new ones and am kinda torn over the slightly cheaper ones off of ebay or the more expensive ones off of say PFYC or other sites?

Thanks for the help!!!

I bought Powerslot slotted rotors. So far, they are AWESOME! A little more expensive than OEM replacements, but not by much. I couldnt be happier with the brakes I bought.

I bought Powerslot slotted rotors. So far, they are AWESOME! A little more expensive than OEM replacements, but not by much. I couldnt be happier with the brakes I bought.

Whatever you do make sure you go 12" up front, especially if you tailgate like me


i have powerslots too, never had anything else, they're not bad and a noticeable improvement over stock

I bought some off brands off of ebay from an ebay vendor. I've been very happy with them so far.

As for 12" rotors you'll need new brackets to mount the calipers to. Many kits are available or you can piece it together from a certain range of F body's can't remember off hand right now.

yeah, if I was going with 12" then I'd probably get the F-body upgrade or the Baer eradispeed kit from GMPD

<---- ebay. I've had them too long to remeber who I got them from. I actually went with the cheapest pair I could find. No problems at all and this is something that I would highly suggest doing. You get more of a brake pedal, you don't have to stand on it as much to slow it down.

yeah, I know the advantages, and I'm long overdue for drilled/clotted brakes, just am unsure what one to get, so I need some opinions. I thank everyone that has chimed in so far. does anybody here have an upgrade kit on their cars? if so, how do you like it?

Using stock calipers... Purchase some 12" rotors..... The brackets come of off other W-bodies that come with 12" brakes from the factory.. Like the Monte Carlo.

The F-Body brake upgrade is a 12" rotor with F-Body(aluminum 2 piston) Calipers/Brackets.... Some drilling required to make them work.

Oh, and I don't have 12" brakes, but I've got D/S rotors from Gripforce at Ebay... After 1 winter, they rusted up a bit, but seem to be cleaning up.... I only got them because they look good and a very reasonable price.... Sorry I don't have any performance observations about them.

I do recommend getting zinc coated. They are holding up great to all the road salt.

I bought a full set from an eBay supplier I believe called GripForce. They were $180 for the full set and I added some top quality pads...the difference was phenomenal. I can stand on the pedal and the ABS never has a chance to engage. he car hauls to a stop so much faster you'll be picking your bubble gum off the windshield...they dont fade and wet weather performance is equally impressive. My rotors are two years old now and still look great. Absolutely a fantastic value and a great mod.

so for those of you that bought off ebay, did you get them from this place? they seem pretty reputable and have high feedback, so this is what I was thinking about getting

http://cgi.ebay.com/ebaymotors/Pontiac-G...1QQcmdZViewItem

I got the 12" drilled/slotted from ebay seller Gripforce. I've also got the F-body calipers. Stops amazing.



And there is no drilling required for the F-Body brakes. You use the F-body calipers and caliper brackets. The bolts that attach the F-body brackets to the F-body hubs are smaller than the GP, so you just use a small bushing in the GP hub, makes the F-body bolts fit perfectly. Some people get the F-body brackets drilled/tapped to fit the GP bolts, but I think the bushing method was much quicker.

Also note: All rotors (whatever coating) will get rust on the part of the rotor the pad rubs on if the car sits for a while. The pads are constantly grinding down that portion of the rotor, so no coating will ever protect it. But after a couple miles of driving, any rust on that part will be removed by the pads.

But the zinc coating on my Gripforce rotors has held up great everywhere else, no rust on any other part of the rotor.

i just bought a set of drilled rotors from a parts store around the corner for 160 with pads...havent had a chance to put them on yet...

Denver I hope you flushed your entire brake system. That's some nasty lookin brake fluid you have in that bowl.

which w-bodies came with 12" rotors from the factory?

None that I know of.

Monte Carlo's have 12" brakes from the factory

If it were me though, I would go with F-body brakes.

why the f body brakes? i would think the monte's would be easier...but i dont know much about the brake systems yet....

Monte Carlos had 12" brakes.
You can use the Monte Carlo brackets with your factory calipers to install 12" rotors.
If you want to upgrade to F-body standards you will need brackets and calipers from an f-body with the appropriate pads. With those parts, and a tiny bit of fabrication you can buy the 12" rotors that are made to fit the Monte Carlo, or aftermarket rotors that fit your application and have dual piston aluminum calipers that are superior to the GP calipers.

Dementeddj, glad to hear that you're interested in our rotors. Did you end up purchasing them?

i didnt know D/S rotors made THAT much of a difference =X my brakes are squeeking...id say thats what im gonna go with

Iirc R1 is the vendor I got mine from.

herc how much they charge?

Most of the really nasty stuff in the bowl was from the junkyard F-body calipers I got. After seeing the color of the fluid, I decided against rebuilding them myself and traded them in for remans.

But I did a complete flush anyway, till I got brand new clean fluid out from each wheel.

Here's some reasons I like the F-body brakes more:

Bigger pads:


Dual piston calipers:


Combined with the 12" rotors, it stops much better than stock. And the f-body calipers weigh a lot less than the stock calipers, which offsets some of the weight of the 12" rotor.

All four I wanna say was under $150. I picked them up on Ebay for a buy it now price. I don't remember cause I ordered all kinds of stuff that day.

The weight claim is misleading though. Your rotor weight is what is important with stopping. The more rotating mass you have on an axle (bigger/heavier rims, bigger/heavier rotors, etc), the longer it takes to stop.

Heavier calipers won't effect your stopping distance, just your speed.

I'm sure the larger pads and stuff outweigh the heavier rotors...but the the weight savings on the calipers won't help you stop quicker.

so whats so great about 12" rotors?

Actually less unsprung weight improves suspension response and increases handling.

What's so great about 12" rotors? Much larger friction area reducing stopping distance.

ahhh i think ill stick to stock :-P sounds like too much work to make the other brackets work =\

no, not as of yet, but I think that I will give them a shot, and possibly next year ugrade to the Baer package for the whole car, depending on how I like them. right now I need new brakes. how long you think it will take to get a set from CA to KS if I order any?

Depends, I think I ordered from same place, don't remember, mine got screwed up in the process because when the place did there coating or what not they messed it up and had to wait on new ones before they shipped them out. Good Luck. When mine came, the UPS driver waddled to my drive way, so I ran down and grabbed the heavy thing from him, thought he was gonna pass out.

True, it will improve handling too. Just as much as removing 12 pounds from anywhere else in the car

-fiberglass hood
-removing spare tire
-etc etc.

I was under the impression he was saying that removing 12pounds from the brakes was helping it stop better.

No, the reduced caliper weight is different than other weight reduction you mentioned. It is unsprung weight. It has a much more direct impact on handling. Reducing unsprung weight makes the suspension more responsive. The larger rotors increase the unsprung weight, the aluminum calipers reduce it.

No, the lighter calipers won't improve stopping distance. But going to 12" rotors improve stopping distance (better leverage), going to F-body brakes improves it, and the lighter weight calipers keep the handling from suffering from the heavier rotors.

my only two cents are pad wear. Rotors with perforations will reduce the life of the pad faster then rotors without. Also "drilled" is a misnomer. They are not drilled. The holes are part of the fabrication process. Drilling would induce cracking of the rotor. I would also buy slotted only as they are the best of both worlds.

I believe the rotors we buy are drilled....
I've heard of high end rotors having cast holes, but I'm unsure if there are any available for our cars. Maybe Baer, or Brembo.... Might be something to look into if you're interested in "the best".

Yup, ours are true drilled slots. Drilled on a CNC machine.

I think I heard once that it was either Porsche or Ferarri that has the only rotors that are cast w/holes.

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