G8 GT OEM Brembo Upgrade Kit

[Greg@PacePerformance]

Upgrade your stock G8 GT brakes to the OEM GXP Brembo's
Purchase your kit here
PAC-G8GXPBrake (http://PacePerformance.com/index.asp?PageAction=VIEWPROD&ProdID=252986)
As of typing this the price is set at $900.00 shipped with OEM brake pads. You can also add the Russell brake hose kit and proper speed bleeders at discounted prices.

Also note you will need aftermarket wheels or factory GXP wheels to use this kit.

Brake caliper template. Made to scale. (http://paceperformance.com/paceperformance/pdf/gxptemplate.pdf)

[BlueJacket]

Great Price

[99-LS1-SS]

Do you have any shots of the Russell brake hose kits and the speed bleeder?

[Greg@PacePerformance]

I have them here so I am sure I could come up with something. I will post soon.

[Scott @ INTENSE]

Looks like a great deal Greg! :)

What is the lead-time on this kit, if ordered today?

[Greg@PacePerformance]

Do you have any shots of the Russell brake hose kits and the speed bleeder?

Here is a quick and dirty picture.
http://paceperformance.com/productimages/grrrr8.net/G8hosebleederkit.jpg

[Greg@PacePerformance]

Looks like a great deal Greg! :)

What is the lead-time on this kit, if ordered today?

Wouldn't you know that as soon as the rotors are available GM puts the pads on backorder. :(

I have one kit in stock minus the pads and one pin kit. My best guess in a few days for the pin kit to arrive.

[Scott @ INTENSE]

Order placed. :)

[NastyG8]

that is a great price i will be purchasing a set in the near future

[sweetair]

Upgrade your stock G8 GT brakes to the OEM GXP Brembo's
Purchase your kit here
PAC-G8GXPBrake (http://PacePerformance.com/index.asp?PageAction=VIEWPROD&ProdID=252986)
As of typing this the price is set at $900.00 shipped with OEM brake pads. You can also add the Russell brake hose kit and proper speed bleeders at discounted prices.

Also note you will need aftermarket wheels or factory GXP wheels to use this kit.Will the GT 19x8 rims give enough lateral clearance for the calipers? Thanks.

[99-LS1-SS]

Here is a quick and dirty picture.
http://paceperformance.com/productimages/grrrr8.net/G8hosebleederkit.jpg

Thank you Greg! What is the cost of the brake hoses and bleeders?

[Greg@PacePerformance]

Same parts as the GT ;)
Hoses are RUS692210 - 119.95
bleeders are RUS639560 - 15.90 for a pair

[shaunfin24]

Will this kit not work with the gt 19's? since u say u have to have have gxp rims or aftermarket

[Greg@PacePerformance]

Will this kit not work with the gt 19's? since u say u have to have have gxp rims or aftermarket

Correct. KTLPLSM tried it on his OEM 19's and he would have needed to add a spacer to clear the calipers.

[shaunfin24]

well i guess ill have to hold off on this till i upgrade rims

[G8V8]

well i guess ill have to hold off on this till i upgrade rims

The HSV wheels will work. There are a few choices on tireRack if you select 09 GXP. My wheels as well as some others carried by Wheelworx.com.au will work.

Be careful on some other wheel websites. I've seen some list wheels for the GXP that I know will not fit. I think they are assuming the G8 and GXP can use the same wheels. Because of the width of the Brembo Calipers, this is not correct.

[netmand]

oh the laundry list just got bigger...

[shaunfin24]

The HSV wheels will work. There are a few choices on tireRack if you select 09 GXP. My wheels as well as some others carried by Wheelworx.com.au will work.

Be careful on some other wheel websites. I've seen some list wheels for the GXP that I know will not fit. I think they are assuming the G8 and GXP can use the same wheels. Because of the width of the Brembo Calipers, this is not correct.

What offset do u need for aftermarket rims to fit bc ive been looking at the ruff racing r281 i wonder if they would fit with those

[dklau33]

It's not only the offset, you have to consider the spoke to caliper clearance or the backspacing. Yes, in general an offset with a lower number will gain more clearance but just because one wheel with an offset of X that clears the calipers does not mean all wheels with the same offset of X, giving all things else are equal, will clear.

[dklau33]

Greg, where am I, in terms of order, on the list for this kit? I guess I'm one of those waiting on OEM pads.

Darren

[wreckwriter]

Thank you Greg! What is the cost of the brake hoses and bleeders?

It should be noted that the Russell line kits are mis-labeled, left front=right front, at least mine was and I've seen others say the same.

[shaunfin24]

It's not only the offset, you have to consider the spoke to caliper clearance or the backspacing. Yes, in general an offset with a lower number will gain more clearance but just because one wheel with an offset of X that clears the calipers does not mean all wheels with the same offset of X, giving all things else are equal, will clear.

Yea i see what your saying

[Greg@PacePerformance]

Greg, where am I, in terms of order, on the list for this kit? I guess I'm one of those waiting on OEM pads.

Darren

Yes waiting on pads. You are 2nd in line. I am working on making Hawk pads an option and should have pricing tomorrow. I will let you know what we come up with.

[dklau33]

Doing some searching on this board and the other board it was stated that the GXP Brembos use the same front pads as Mitsubishi EVO 8-10, Subaru WRX STi, Ford GT, and Ford GT500. I looked these all up on Hawk's website and all the product numbers for the front pads for the Brembos on these cars end in ".585". Can you confirm that the GXP Brembos use the same pads as all these other cars I've listed?

If this is true then I will forgoe the OEM pads if they take to long to come in, take the $100 refund, and will just get an aftermarket set of pads myself. Thanks.

[Greg@PacePerformance]

Hawk does now list the GXP on their application list and it does take the same pads as the other cars listed. I am working to get special priceing on pads and offer them as an option.

[Greg@PacePerformance]

The Hawk pads have been added to the options.
HP Street pads are - 124.95
HP Ceramic pads are - 129.95
fronts only.

[dklau33]

Yes waiting on pads. You are 2nd in line. I am working on making Hawk pads an option and should have pricing tomorrow. I will let you know what we come up with.

Greg,

Any status on my order? If you have everything but the pads, just skip the pads as I'll get an aftermarket set on my own. Thanks.

Darren

[G8V8]

Greg,
Here is an update now that I have had the GXP brakes on for a while and everything is bedded in.

The feel is improved. It is firmer. Less travel is required before "Whoa" starts. Initial bite is better too. Overall the braking performance feels better. Much more confidence inspiring.

The OEM pads dust a lot but on my mostly black wheels I hardly notice. I wipe of the polished spokes and they look great.

This brake kit has to be the braking bargin of the century.

Thanks for working this all out.
Ed

[Greg@PacePerformance]

Darren,
We have everything but your calipers in stock. GM put them on backorder as soon as I released the kit. Sorry for the delay.

I have another kit that is complete for another customer but I inspected the caliper and it was damaged so I have another on order. :hang:

So Ed currently has the only set we have sold.
Thanks for the great feedback Ed.

-Greg

[dklau33]

Any updates Greg?

[G8V8]

These brakes feel so good that I hope others can get some of the kits. Money well spent!

[Greg@PacePerformance]

It would be great if the calipers would come off of backorder. Then I could ship the orders.

[dklau33]

What's the story now Greg? Any luck?

[Greg@PacePerformance]

Still waiting on a GXP caliper. That is what is holding the order. There are none in the entire US at any dealers or GM warehouse.

We would have had plenty if they all didn't arrived from GM damaged.

[dklau33]

That's crazy how so many of these calipers get damaged. Do they not package them properly with protective material? And how bad is this damage? If it's just slight cosmetic damage I might consider taking a pair for my kit for some sort of discount.

[Greg@PacePerformance]

That is exactly it. GM sticks a brake caliper in a box that is 3x the size of the caliper with no packing and ships it. The caliper then decides to bounce around in the large space sometimes trying to escape from the package and other times just bouncing around damaging the paint and bending the fluid cross over paint.

All damaged calipers have been sent back to GM.

[Greg@PacePerformance]

New calipers just arrived in good shape!
Darren yours is shipping today.

[G8V8]

Guys, you are going to love this kit!!!

[dklau33]

Just got my tracking #. Thanks Greg! You guys have come through again with these hard to find items. Hopefully my wheels fit over these calipers.

[Greg@PacePerformance]

Please make sure you post some pictures :)

[dklau33]

Oh man, just got my package delivered today at my door. Can't wait to open it up tonight after work. I feel like a kid in a candy store. Too bad I can't install it this weekend since I'm gone out of town for the 4th. Hopefully I can do it the weekend after. Thanks again Greg and Pace.

[christiancoach]

Greg,
How would we figure out if these brakes will fit with aftermarket rims? I have Savini Avarus AV5 20's in a staggered set up.
Thanks
Tony

[Greg@PacePerformance]

christian,
Either talk with G8V8 (Ed) or look on Tirerack.com under GXP for the wheels that fit. Sorry we don't have any kind of fitment template made up.

[dklau33]

I finally had the chance to install today but ran into bad news. My 18" wheels do not fit. I have 18x8 +42 Sport Edition CD. I have enough spoke to caliper clearance but the caliper touches the inside of the wheel. According to the Tire Rack, there are plenty of 18" wheels that fit the GXP so not sure why mine doens't. I guess the diameter on the inside of wheels varies from company to company? If the caliper was just a tad thinner on the top my wheels would fit just fine. Now I'm in a dilema of whether I should get new wheels or forget about these and just sell them. Ughhhh... :hang:

[G8V8]

I looked on the tirerack site and could find no 18" wheels listed for the GXP. There are a lot for the GT. compare the wheel listings for the GXP and the GT and you will see how the wheel choices are far fewer for the GXP.

I have seen other sites that list the GXP on the same line as the GT that show GXP wheels that I know from first-hand personal experience will NOT fit.

[J Wikoff]

I finally had the chance to install today but ran into bad news. My 18" wheels do not fit. I have 18x8 +42 Sport Edition CD. I have enough spoke to caliper clearance but the caliper touches the inside of the wheel. According to the Tire Rack, there are plenty of 18" wheels that fit the GXP so not sure why mine doens't. I guess the diameter on the inside of wheels varies from company to company? If the caliper was just a tad thinner on the top my wheels would fit just fine. Now I'm in a dilema of whether I should get new wheels or forget about these and just sell them. Ughhhh... :hang:

Obviously you gotta be careful where you do it, but is the interference in an area where you could grind material off the caliper?

[dklau33]

G8V8 Tirerack has a winter section where you can choose downsized wheel and tire packages. I picked the GXP and they list 69 different wheels in 18" size that will fit. Of course they could be mistaken but I would think they did their homework since Tirerack is a reputable and trusted company.

J Wikoff Grinding is an option as I don't think I would have to take too much off the caliper. As of now I can almost get the entire wheel to fit.

[G8V8]

G8V8 Tirerack has a winter section where you can choose downsized wheel and tire packages. I picked the GXP and they list 69 different wheels in 18" size that will fit. Of course they could be mistaken but I would think they did their homework since Tirerack is a reputable and trusted company.



OK. I didn't check that. I hope they did their homework in that section and didn't just port over the GT set-ups.

[DRCUSTOMPARTS]

You need to use 19" wheels with the GXP brakes, most 18's don't clear the calipers.

[p71]

OK. I didn't check that. I hope they did their homework in that section and didn't just port over the GT set-ups.

They did not port stuff over. There are a bunch of gt listings that do not appear on the gxp.

[G8V8]

They did not port stuff over. There are a bunch of gt listings that do not appear on the gxp.

Good. I would have been disapointed in TR if they had. They usually have their stuff together.

[Greg@PacePerformance]

Camaro SS front calipers can be used instead of the GXP and you would save $200.00 on the kit price. To do this you will have to drill the G8 knuckle to accept a 14mm bolt instead of the 12mm G8 bolt. If anyone is interested in this option shoot me a message or email.

[dklau33]

Greg, is the Camaro SS front calipers smaller than the GXP calipers? If so will they fit over the GXP rotors?

[red_racer2]

Camaro SS front calipers can be used instead of the GXP and you would save $200.00 on the kit price. To do this you will have to drill the G8 knuckle to accept a 14mm bolt instead of the 12mm G8 bolt. If anyone is interested in this option shoot me a message or email.

Couldnt you also add a 2mm sleeve to the bolt that goes through the caliper like the 04 gtos did to the 05 gto calipers.

[G8V8]

The Camaro caliper is threaded for the larger bolt. The bolt passes through the knuckle. The 14mm caliper bolt will not fit through the G8 knuckle and the G8 bolt, 12mm, will not thread into the 14mm threads in the Camaro caliper.

You could run G8 GXP calipers on a Camaro using a sleeve on the 12mm GXP bolts but not the other way around.

[red_racer2]

The Camaro caliper is threaded for the larger bolt. The bolt passes through the knuckle. The 14mm caliper bolt will not fit through the G8 knuckle and the G8 bolt, 12mm, will not thread into the 14mm threads in the Camaro caliper.

You could run G8 GXP calipers on a Camaro using a sleeve on the 12mm GXP bolts but not the other way around.

Doesnt the threaded part of the bolt screw into the knuckle and not the caliper. The bolt just passes threw the caliper to the knuckle correct.

That was the case with the GTO's.

If the camaro caliper is 14mm and the G8 is 12mm you could make a 2mm sleeve for the bolt to secure it in the caliper. I never had problem when I did this with my GTO and I road raced my GTO hard for two years with the upgraded 05 GTO calipers which are the same as what is on our G8 now.

[red_racer2]

Whats the part number for the camaro ss calipers?

[G8V8]

Doesnt the threaded part of the bolt screw into the knuckle and not the caliper. The bolt just passes threw the caliper to the knuckle correct.

That was the case with the GTO's.

If the camaro caliper is 14mm and the G8 is 12mm you could make a 2mm sleeve for the bolt to secure it in the caliper. I never had problem when I did this with my GTO and I road raced my GTO hard for two years with the upgraded 05 GTO calipers which are the same as what is on our G8 now.

nope, Calipers are the threaded part.
http://img.villagephotos.com/p/2002-11/65524/DSCN0265_1343.JPG

[Greg@PacePerformance]

Thanks for the help Ed.
The Camaro SS calipers are 92233188 & 92233189
They are the same caliper as the GXP except the SS are black and say Chevrolet on them and are threaded for a 14mm mounting bolt.

[red_racer2]

nope, Calipers are the threaded part.
http://img.villagephotos.com/p/2002-11/65524/DSCN0265_1343.JPG

now it all makes sense.. thanks for the picture

[dklau33]

FYI for all the prospective buyers out there, I emailed Tire Rack about their 18" winter wheels section for the GXP. I asked if they guaranteed the fitment of those wheels with the OEM Brembos. They basically said yes. Currently there are 69 18" wheel choices that will fit the GXP on Tire Rack.

[DRCUSTOMPARTS]

They only show three 19" wheels that fit the GXP, so I doubt that the 18's will fit.

[dklau33]

They only show three 19" wheels that fit the GXP, so I doubt that the 18's will fit.

:confused:

Go to the Tire Rack website.

Products -> Winter -> Shop By Vehicle.

Choose 2009 Pontiac G8 GXP.

Choose 18" Packages.

Choose "Don't Need Tires? Skip to Wheels".

There are 69 choices of 18" wheels that will fit the GXP. This was confirmed with a Tire Rack sales person as they stated they actually did test fitting on an actual GXP that they had in house. They gauranteed it fits. If it really doesn't then they should provide a full refund.



Dear Sir,
Thanks for your question to The Tire Rack. We have been able to get the GXP in our tech center for evaluation, and can guarantee the 18" wheels listed to fit the stock vehicle provided the recommended tire sizes (235/50-18 or 245/45-18) are used. Hope this helps.

If you have any other questions or need to place an order, please contact me directly. If you are placing your order online, please be sure to reference my name, so that I can watch over your order as it processes.



Best regards,



Doc Horvath | Retail Sales Specialist
__________________________________________________ ________

The Tire Rack
7101 Vorden Parkway
South Bend, IN 46628

[Greg@PacePerformance]

Added fitment template to first post.

[dklau33]

Too bad this template wasn't available when this kit first came out. Would have saved me a $250 mistake! Oh well, live and learn.

[gr82surf]

Upgrade your stock G8 GT brakes to the OEM GXP Brembo's
Purchase your kit here
PAC-G8GXPBrake (http://PacePerformance.com/index.asp?PageAction=VIEWPROD&ProdID=252986)
As of typing this the price is set at $900.00 shipped with OEM brake pads. You can also add the Russell brake hose kit and proper speed bleeders at discounted prices.

Also note you will need aftermarket wheels or factory GXP wheels to use this kit.

Brake caliper template. Made to scale. (http://paceperformance.com/paceperformance/pdf/gxptemplate.pdf)


Does Pace have the rear Brembo's for the G8 GXP? I'd give you $900 with a smile on my face, lol.

[Greg@PacePerformance]

I can piece a kit together for you. You would have to contact squash performance for the caliper adapter brackets and parking brake shoes, or you can buy DBA rotors and not need the brackets or shoes.

[Darkmanx]

I can piece a kit together for you. You would have to contact squash performance for the caliper adapter brackets and parking brake shoes, or you can buy DBA rotors and not need the brackets or shoes.

what dba rotor? so if i buy the dba rotor i can just add the camaro rear calipers and keep my ebrake?

[2lazy4agoodname]

Its an hsv rotor. Marylandspeed sells them. You also have to shave off parts of the pad for this to work.