i have an obd2 ecu, and im wondering if i should chip my obd2 or get a harness to go obd1 and chip that. i can get a mugen p72 but i know nothing of wat upgrades to expect like redline limit and how much i should expect to pay for it all. any help/

 

its not worth it to chip an OBD-2 go OBD-1 you wont throw as many codes and it will be alot easier to tune/chip

 

get obd-1 and chip that.