I have Toms 40mm upgrade rear calliper's on my Gen II GTS and Baer Eradispeed 2 piece rotors all round
I use EBC Red pads on the front and a European make Pagid on the rear. (basicly because there easy for me to purchase here in the UK).
The Eradispeed discs I have are Slotted and drilled, if you intend to purchase these I would recommend Slotted only
The slotted only discs are available for Eradispeed system
With the drilled discs you end up getting fatigue cracks between the holes, it is not a problem until the cracks start joining up, then you need to change the discs.
I can say the 40mm upgrade made a massive difference to how the car stops, I used to get sick to death of front wheel lock up under the slightest bit of what I called sharp braking. With the 40mm set up I can still get the fronts to lock up but the whole car is now much more balanced out. This is how the car should have been set up in the first place when it left the factory.
I have not driven any other Vipers that have upgraded to the Gen 3 calliper's and moved the front calliper's to the rear, so I can't comment on that set up, But I am pleased with what I have for the Buck.
Hope that helps.
Mark
