Originally Posted by Bill Lehman

I ran 3 mm per side without the TPC links and now run 2 mm per side with TPC links. I am a late braker.

Originally Posted by Dr.Bill

I was happy with zero toe in the front and 2mm toe in for each rear wheel (i.e 4mm total toe in).

Originally Posted by Tom-TPC Racing

Factory spec rear toe is +10' per side. Converted to millimeter is +1.4mm to +1.6mm per side. You'll have to run double the factory spec amount(or more) to keep rear toe from going below zero and into a negative number during hard braking if the shocks, springs, suspension controller, and rear toe geometry is stock.

Edit: There's a lot for variables on how much rear instability as a car's front dives/rear lifts- how sticky the tires are, braking torque from the brake pads, driver's brake application, hard braking during downhill or uphill...