I believe the point of the sap is too help the cats heatup faster resulting in better emissions witt the engine still cold as well as prolonging the life of the cats. Raw fuel is the enemy of your cats. Running rich will destroy them as well as running lean. Rich will clog them, lean will cook them.
Sap delete may equal premature cat death. Dont quote me on that though
ESS Tuning m60 version software
m60 intake manifold
3" obx catback
full powerflex urethane setup
m5 rear sway bar
M5 chassis rods
M5 3.15 lsd
Bc-r coilovers w/ swift springs
ss braided brake lines
Last edited by Topaz540i; 11-17-2012 at 09:50 AM.