GT4 front caliper alternatives? Options

[luka]

are there any alternatives to the factory GT4 calipers that aren't $1,300+?

Its one of the few hardware pieces i'm missing for my project.

I doubt my stock GT calipers are strong enough to handle & judging by the size difference in hubs, even big enough to consider using.

any help is appreciated

[bccentaur3]

Well the ls430s I have are monobloc 4 piston calipers in the front and 2 piston in the rear. You will need a brake adapter that can easily be made using aluminum blocks. The thing you guys fail to consider is the brake bias. Now if you guys are all about having massive calipers then more power to you, the point of upgrading your brakes is to gain stopping performance.

We need a the ST and GTs stock caliper piston diameter then we can go from there on brake bias.