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Booked tickets for this

But the reality is I'm not going to mess about changing pads just to go on track. I just want something that does both very well. My setup does that and will out perform whatever pad/disc combination you have on the stock calipers. It's also just as good on the road. I've had over 30K miles out of them now.

Depends upon what you mean by 'decent' tyres. Even with decent road tyres you will over come what the stock brakes are capable of after a few laps. It's about sustaining feel and keeping the consistency of it lap after lap. Even in a sprint which is only one lap I get the advantage of a BBK. It inspires confidence and the brakes simply consistent and don't fade. On a sprint I struggle with stock calipers. Uprated pads offer only a slight improvement. The other point you and most are missing is that if you trail brake the modulation of pressure and consistency of feel is key to being able to adjust the angle of the car when turning into a corner. I admit these are advanced techniques that I don't expect your average driver to thoroughly grasp, but having a BBK even using road tyres has possibly been one of the best modifications I've done to my car.

Yeah it's the bit about piston area that i don't follow. By my maths the WRX 4 pots give you significantly more piston area, even if i'm being generous and assuming the OEM calipers act as a 2 pot (rather than a sliding single). 1 piston WRX = Pi x 20^2 = 1256.6mm^2 So 4 pistons = 4 x 1256.6 = 5026.5mm^2 GT86 OEM = Pi x 21.4 = 1438.7mm^2 So 2 pistons = 2 x 1438.7 = 2877.4mm^2

I’m looking to build a forged engine and on the look out for parts, before I go and buy from a vendor I thought I’d post up a wantedLooking for the following:Carrillo Rods with carr boltsCP pistons (10:1 or higher)ARP case boltsARP head boltsXP racing PmaxKote rod bearingsXP racing PmaxKote main bearingsUprated valve springs, retainers, etcI’m sure there are other engine build related things I might be interested in too so try me......