Base vs. Brembo comparo

Can anyone point me toward a comparison of the base GT caliper vs. the Brembo caliper, either photos or dimensions?

Base GT Caliper size:
352 (13.9 in.) x 32 - mm vented disc
Four - Piston 46 - mm fixed aluminum calipers

Performance Pack GT Caliper Size:
380 (15.0 in.) x 34mm vented disc
Brembo Six Piston 36mm fix aluminum calipers

What I'm particularly curious about is the width across the calipers. Got that dimension?