Today, I saw that there are two different part numbers for 03-05 and 06-07.

http://www.intensepower.com/st133bigbrki.html

If you see that website, there is stoptech bbk for 03-05 and also for 06-07.

So...stoptech bbk for 03-05 won't fit my 07?

Please someone help me ^^

 

The kit will physically bolt up the same but the piston sizes are very different. We offer kits with piston sizes specifically for the 03-05 and 06+ in order to maintain proper performance

 

Does that mean the master cylinder is different between the single piston and dual piston nonbrembo calipers?

 

The master cylinders do have a different pt# which means there are differences somewhere. As for the exact differences, I'm not sure.

 

why are there piston size differences between the years then?

 

Hum..So you don't recommend me using 03-05 STOPTECH BBK for my 07?
or is it going to be ok with VDC system and everything?

 

If you have an 05+ car, you should use the kit designed specifically for those model years. There were significant changes to the brake systems between the years so the parts should not be interchanged.

 

Please share those changes.

 

Okay folks, if you have the 06-07 you have different brakes compared to 03-05.

This means your front and rears are bigger than 03-05's front and rears. The stoptech 03-05 kit was made for 03-05 OEM brake sizes which means to compensate for the rear. If you put the 03-05 front on a 06-07 front, the rear of the 06-07 is actually bigger than 03-05 which will give a different brake bias. I hope I got it right, correct me if i'm wrong stoptech.

This is why my stoptechs took 3 weeks to get because they had to make them for my 07'.

So to summarize, yes they fit but for best brake bias it is best to buy a new kit specifically for the 07'.

 

Thanks everyone !

 

So are the 4 wheel kits the same between all the years?


And just because the rotor are larger and there are more pistons does not mean the braking force has changed at all, unless someone does some tests. Bigger rotors are for greater heat capacity and more pistons are better for even brake force on the pads.

 

So a 05 Base should stop the same as a 07 base?

The 06-07 non brembos are about the same size rotors as the 03-05 brembos. I'm sure they will stop much quicker than the 03-05 non brembos.

 

Still, I feel like the question hasn't been answered. Was there a significant change in F/R weight distribution, overall weight, etc in 06-07s that required revised brake design/bias?

While I understand that the brakes themselves are bigger in the newer model years, if the car's weight and weight distribution remain the same there should be no need for a revised Stoptech line specifically for the newer models; rather, this upgrade should be applicable for all model years.

 

The rear brake rotors are bigger to keep the brake bias the same with the larger front rotors, if you only change the front brakes with an older 03-05 design that was meant to be used with the smaller rear rotors, then the brake bias will shift to the rear. If you use a f/r kit from an older model you'll be fine

 

The 06-07 weigh more than 03-05 therefore need bigger brakes to stop.

 

If you look at the Stoptech 4 wheel test, the Brembos stopped ~1-2ft shorter than the 03-05 stock brakes to 60 and 100 ft.

 

The main advantage to the brembos isn't stopping distance, it's brake fade. Do 10 laps around a track with a base braking system, brembo system, and a full stoptech system and you'll get my point. Then test the 60-0, the outcome will be outrageous. The stock brakes (non brembos) fade very very quickly, thats why I got stoptechs.

Also, I think in that test they tested a 03 which is also the lightest model Z out there so comparing a 03 to a 07 is sorta unfair IMO. 07' are sorta hefty.

I think we can both agree the non brembos fade.

 

Ya, I agree. I was just stating that the bigger rotors on the '06+ could have just been for greater heat capacity and might have not had any braking force or bias changes done to them even though the car is a few pounds heavier.

Btw, I had the stock brembo's, but switched to the Stoptech BBK. Much better heat capacity for sure, but it doesn't stop any better. Which kit did you get? Post up some pics of yours!!

 

 

Nice 07 with STOPTECH Front BBK.