I think the first thing to say (without preaching to the choir) is that you can stick on some RS6 carbon ceramics, and your 60-0 distance will be the exact same. In fact, with the extra unsprung/rotating mass, it would probably be worse. The only point of larger discs and calipers are for better thermal resistance - in other words, larger discs take longer to heat up. If you're not on track through, then you won't be benefitting from this. While I'm not sure what setup you have at the moment, I will say that the standard 340mm discs and caliper setup on my vRS 245 really isn't the lightest. For comparison sake, the Racingline EVO 4-pot BBK comes in at 4.4kg per side (caliper, pads, carrier), compared to the hefty 8.6kg of the stock single piston setup. That's a huge difference. Frankly, even their 6-pot monoblock is a good 3kg lighter than the standard caliper. Unless you're going to carbon ceramics, you'll find that bigger discs are heavier. For some idea, an average 310mm disc comes in at about 8.4kg, compared to the 10.8 of a 340mm. Those Akebono callipers call for 374x36mm discs - that's big. Ultimately, it's about deciding what is more important to you. If it were me and I was going up to a larger engine, I would first consider doing some changes to the suspension and putting some 245, 255 or even 265 section tyres on there. Are your wheels definitely 9J? (The minimum tyre size for 9" is largely recommended at 235) From there, I'd do some braided lines, and look at a 345/355mm BBK - such as from Racingline, EBC, with some nice pads and uprated master cylinder/servo. This setup would give you - Bigger, lighter and better looking calipers Bigger, better looking discs (that are probably only marginally heavier than OE) Better pedal feel with the lines, pads and rest of the system Better handling and braking (that can get the most out of the fancy new brakes) I'd also look at some ducts to keep the system cool (more fun than anything else, really) - either the clip on RS3 style wishbone ones, or proper bumper vent ducts. The only other thing to add, is it's not all fun with larger brakes/BBKs. Larger dual-piece discs are more prone to warping, larger calipers are more prone to damage on the UK roads (salt, etc) and usually worsen the NVH (pads don't have shims and the like, no dust boots, etc). Personally I'd just stick some 340mm R brakes on it and spend the saved money on a bigger turbo!