The SRT8 has Brembos front and rear.
They are 1 piece rotors and OEM calipers.
The Brembo & Stoptech kits are two piece floating rotors with much bigger calipers, pads and rotors.
The bigger the better.
I fitted a Brembo GT front kit (14" rotors + 4 piston calipers) a while back and it made a huge difference.
I recently fitted a Brembo GT rear kit (13.5" rotors + 4 piston calipers) and the braking is absolutely incredible at high speeds.
The Stoptech kit is slightly cheaper, the two traders on here Dave (Stoptech) and Aaron (Brembo) are extremely helpful and will be able to answer your questions regarding price etc.
If you cannot afford a full kit, do it in parts like I did, you won't regret it.
Its seriously one of the best mods you will ever do and well worth the money!
