The GXP is a 12 inch rotor. IDK if the GTP is a 10.6 inch or 12 ;)

While they look right, the fronts will work but the backs are wrong in that kit..

JW....how can you tell the fronts will work and backs wont? i just wanted to do the front anyways.....but im curious as to how u know the backs wont work..... i just wanna make sure i dont run into any problems when it comes time to put these on.....i wanna make sure i have all the right stuff.

Go straight to Goodridge for proper stainless lines. GM uses odd sized connections...

The only well to really tell (since that picture is just a representation and not the actual part) is to make sure they are long enough (I dont' recall how long the lines are) but the caliper-side fitting is a M10x1.0 banjo bolt and the opposite fitting (which attaches to the hard line) is a M10x1.0 ISO bubble flare.

You guys are awesome. I'm gonna check into this and see what i can find. Thank you:coolio:

Because i have that set, and the fronts are identical between the J and N body cars. But the rears on the J-Body are different and are what is in this kit. They're like 6" long hoses with female ends on both sides.

http://www.hrpworld.com/index.cfm?tp...tion=prod uct

99-04 grand am kit it is.... any miscellaneous parts i may need?

bump

Those will work fine.

I just got the brakes today. It came with the calipers and rotors....but do i need brackets to mount these calipers? cause it didnt come with any...... and these calipers are SIGNIFICANTLY bigger than the stock ones:lol: Please....anybody who knows help me ASAP cause these things gotta go on ruby ASAP. Thank you

ya i have the same kit and it came with brackets so it should have them

did you buy the cheaper kit? I got the $230 one.....i guess i had to get the more expensive kit for the brackets huh?

this is the one i got....
http://www.mpracing.org/store/index....&productId=370


probably should have read a little better before ordering....now i see it says "base kit".....so how should i go about getting brackets? The customer service isnt too good cause i called 3 times, left voicemails and emailed once and never got anything back. I thought the order didnt go through cause it took forever to get these (over a week). So now im worried cause i need these brackets and i never got a hold of anybody all the times i contacted them.

So just to get everything clear....all i need is brackets now right? nothing else? I already have stainless steel lines so those dont matter. just brackets...right?

right on the site it lists the components...

The base kit includes:
- 1 Pair of Dual Piston Calipers
- 1 Pair of Caliper Brackets
- All hardware for needed for installation
- 1 Set of Ceramic Pads
- 1 Optional Pair of OEM Style rotors


I'd think they should have been included

thats the same one i got so you should have brakets

LOL....wow.....i FAIL. So i did read everything right! I totally passed over that before.

I emailed them about it....hopefully they get back to me soon. Brackets weren't in the box so idk. Just hope they get shipped here fast cause i need to bring my car in to get the struts/springs/and urethane bushings put in before i head back to ohio and i cant drive it to my mechanic until i have brakes! lol

On the rear GXP calipers what year of GXP will work for the conversion?