RSanchez17

Need help, want to replace AP1 3 channel ABS with 4 Channel AP2 for my road race car. What are the difference and what parts do I need to find of a 2006 or newer AP2 to make it work?? Thanks for help in advance to the S2KI community.

Gottabfast

It looks like the modulators are a straight swap from AP1 to 04-05 AP2. 06-09 AP2 has VSA and that's way more complex and involved to swap in. From an 01 to an 05 spec, the modulator uses the same pin out for the coupler and the same wheel speed processing speed (they're common from 00-05). As long as the ports are the same, which I didn't check, you should just be able to bolt in the 05 modulator and connect the brake lines.

ShadowPh0x

Noob question, but what would be the advantage to this?