Originally Posted by Godspeed Brakes

When I'm talking hard braking I'm talking race / rally car on slicks , race suspension and race pedal boxes not servo / road master cylinder , totally different kettle of fish to a tuned road car on the track , but as I said , my rally car has 2 piece AP 6 pot front and 4 pot rears , good enough for Prodrive then

And when we are talking flex , with a properly designed caliper , I doubt you would see flex looking at the caliper , you would probably only see it happen with digital measuring equipment measuring 100th of a mm .

The only calipers I have seen flex are the small Wilwood calipers

Originally Posted by Godspeed Brakes

Actually I just searched myself and it does look like they make there own calipers now so I apologise for that , there are photos on there website of them being machined , these are the ones I was talking about when they did use brembo calipers

http://www.europeancarweb.com/tech/0...brake_upgrade/

These are Porsche calipers , and they also used Ferrarri F40 calipers , they must have started doing there own in the last couple of years

Originally Posted by terzoscooby

Just out of interest what lets the OEM Brembos down I have read they are poor at dissipating heat which puzzles me.

Also why does nobody make a larger 2 piece disc upgrade for them or do they? I think Ian only does a 326mm 2 pieces disc upgrade for Brembos.

Originally Posted by AS Performance

the STi caliper (and the similar EVO, Volvo, Alfa, Nissan, etc that share a family design) are a production based set-up that relies on an overly bulky shape to maximise the 'looks'

Originally Posted by AS Performance

the STi caliper (and the similar EVO, Volvo, Alfa, Nissan, etc that share a family design) are a production based set-up that relies on an overly bulky shape to maximise the 'looks', this shrouds the disc and causes heat retention issues in more extreme use........the likes of the PFC 2pce kits solve this issue pretty much totally in the use of very high quality bells and floating heat-treated rotors
these are far superior to pretty much everything else on the market in our experience and also offer a very good value for money upgrade when you compare with BBK's, etc.

Originally Posted by Godspeed Brakes

The best calipers available in my opinion is AP , Alcon are also good , but in the road kits with use chrome plated mild steel pistons , and these rust and stick , we had a customer last week who sent some used 18 month old front calipers , and a pair of brand new rear calipers which he just wanted powder coated gunmetal grey , the front piston were all shot and needed changing much to the surprise of the owner , we had to change all the front pistons and they were 6 pots , not sure why they don't use alloy pistons as AP do