porsche caliper difference

[vonbeck]

what the difference between the porsche calipers part numbers

996-351-425 & 996-351-426
and
996-351-429 & 996-351-430
i take it they both have different pads but is there any difference?

[driftin jo]

IIRC the first are boxter s / 996 and the second are 996 twin turbo/gt3,
so the diferance would be size, the later being bigger and having 6 pistons
not 4.

[Colesy]

The early Gt3 429/430s only have 4 pistons, the later Gt3 brakes have 6 though.

The 429/430s are generally bigger than the 425/426s with bigger pistons & disc width, not sure of other differences.

[vonbeck]

So I take it the latter ones are better calipers? I have the 996 / boxter s on at the mo so would the gt3 ones be seen as an upgrade then. If so would they be a straight swap to use with seat Leon caliper carriers? Cheers


Sent from my iPhone 5
using Tapatalk

[vonbeck]

Or are the hole center's for the carrier different so I'd need different brackets etc
Cheers



Sent from my iPhone 5
using Tapatalk

[robo]

Or are the hole center's for the carrier different so I'd need different brackets etc
Cheers



Sent from my iPhone 5
using Tapatalk

Yes they are diffident you need brackets from Bambridge.

[Rusty]

What pads are you running with the current setup? Do you use the car on track?

[robo]

The early Gt3 429/430s only have 4 pistons, the later Gt3 brakes have 6 though.

The 429/430s are generally bigger than the 425/426s with bigger pistons & disc width, not sure of other differences.

just the bigger piston is larger and the pistons are also spaced out more so the pads are bigger too.

[Error404]

you need to run a thicker rotor too ideally, 32 or 34mm with the TT/GT3 4 pots.

[vonbeck]

What pads are you running with the current setup? Do you use the car on track?

im running the ds2500 pads and a8 323x30 disks and no i don`t track my car

[bilko0795]

I run the Gt3 4 pots with S8 323 30mm discs and pagid pads no issues and stops on a sixpence next upgrade will be the Gt3 rear's.