Its best to buy a chip after all mods are done (intake, exhaust, etc.). That way you can get one burned to work with all the stuff you have done to the motor.
-Ken V.
1998.5 SE Praire Tan Zetec ATX
psycho_bass@hotmail.com
Roush springs Roush rear sway bar BAT struts 17" Millie Miglia HT3 and a ton of subtle asthetic mods