posche calipers

[bilko0795]

Iv been looking on flea bay at porsche brakes and am a bit confused there are a set with the no 996 352 421 and 422 fronts and a set with 996 352 425 and 426 rears so what are the right ones i need for an upgrade to the fronts on my S2 iv been told on this forum that i need 425/426 for this upgrade .

cheers.

[twoqu]

The critical thing is to ensure that they are 996 351 425/6!
If they have a 352 designation they are rears! The 351 identifies them as fronts.

[bilko0795]

cheers for that, would 986 351 421/422 fit the s2 and what is the diff between 996 and the 986

cheers.

[Jamo]

cheers for that, would 986 351 421/422 fit the s2 and what is the diff between 996 and the 986

cheers.

986 are black 996 are red

[Error404]

no 986 is the smaller Boxster calipers I think.

[Jamo]

From Le S2 Audi

Original Part No's 986-351-421 & 986-351-422.
Piston Sizes Are 30mm & 34mm.

Q; How many pistons?
A; 4 Each Caliper.
Q; How many fluid bleeding screws?
A; 2 Each Caliper.
Q; What is the distance between mounting holes?
A; 130mm Center To Center.
Q; What is the caliper width at the widest point?
A; 145mm (including your fluid connection point).
Q; What pads does this caliper use?
A; Porsche part number 986-351-939-15 x 1 set per car.
Q; What mounting bolts do I use with the caliper?
A; Porsche part number 999-073-402-01-M100 x 2 per caliper.
Q; What Disc was used on a stock 986/987 with this caliper?
A; Porsche part number 986-351-401-05 x 2 per car.
Q; What Pad Springs are used on these calipers & pads?
A;Porsche part number 996-351-959-01.

And they are BLACK

[Error404]

That may be but its not the right caliper

The 986 designates the Boxster chassis.
The number after the part number designates the colour: i.e. 996 351 426 -01

They are designed for a thinner disc and will not work with the usual A8 disc uprades.

[mcandmar]

986 is indeed Boxster, early 2.5/2.7 cars. Had a set of them before, use a 28mm disk i think vs 30mm on the 996 calipers. Dont bother with these, the 996 are better calipers and disk options are much simpler. I think the 986's can be used on a ur quattro to fit inside the original wheels.

Boxster S had the larger 996 calipers the same as the 911 c2. Some were black, some red, think the Boxster S were Red and the 911 had Black unless it was an S model.

[Error404]

2.5 & 2.7 Boxster used a puny little 24mm disc

[Le S2 Audi]

cheers for that, would 986 351 421/422 fit the s2 and what is the diff between 996 and the 986

cheers.

986 calipers are as Error has said.. From a Bog standard Boxster... These are Normally Two Tone Black/Grey (You do See Some Red Ones From Later Cars)...

These fit the UR with a Bambridge Bracket, and aren't any use for an S2..

You want 996-351-425 & 996-351-426 From a Boxster S For The S2 & you can get 3 colours Red, Black or Silver..

[bilko0795]

Wow lads that is some really good info just to clarify i need 996 425/426 red cals A8 discs two mounting brks from bambridge and some good pads and away to go where is the best place to source the calipers anybody on here sell them, there are a set from nicolas in bulgaria but the p+p is steep its just cost me £45 to get the springs i bought from him sent here. he wants 400euro + p+p he has posted a big price drop but wont tell me how much, he wants me to make an offer but i don,t know what they go for anybody have advice on this. dont want to p--s him off with a silly offer.

cheers.

Ray.

[Le S2 Audi]

Wow lads that is some really good info just to clarify i need 996 425/426 red cals A8 discs two mounting brks from bambridge and some good pads and away to go where is the best place to source the calipers anybody on here sell them, there are a set from nicolas in bulgaria but the p+p is steep its just cost me £45 to get the springs i bought from him sent here. he wants 400euro + p+p he has posted a big price drop but wont tell me how much, he wants me to make an offer but i don,t know what they go for anybody have advice on this. dont want to p--s him off with a silly offer.

cheers.

Ray.

You need 996-351-425/426, the 351 is VERY important as that means Front Calipers!!

There are a load been listed on ebay today for £380.00 Plus P&P in red...

You will also need to get the RS2 Copper Hardlines.... These can be made up or bought from Audi.

HTH

[Error404]

£300 - £350 is the going rate for calipers, depending on condition. Some like to charge more.
Other than the above, you need to alter the brake lines - cheapest way is to make up a short 90deg hardline to connect the caliper to your existing lower flexi line.
Otherwise you can get a custom lower flexi line made up with a banjo end to botl straight up to the caliper, or you can make up an RS2 style hardline all the way to the strut - not the best solution in my opinion as you have to remove the brake line to change the discs or you damage them moving the caliper - and then of course you need to bleed the brakes again.

Best long term solution IMHO is the custom flexi line with a banjo end. There are drawings on the forum of these

[Le S2 Audi]

You also need to grind down the disc guide pins (1mm each pin) on the calipers when using the A8 Discs..

You'll find it hard to get a decent set for £300.00 IMO...

[Le S2 Audi]

NCTS... And I'm not recommending these just showing you what you need...

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=110787189023

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=110787189026