does the p28 chip damage the ecu, motor, etc. need to know if anyone had or has problems with this chip otherwise I plan on installing.

 

Never heard of a mucen chip.

 

I have it. The only downfall to the chip that I can notice is that with the VTEC set at 5700, the engine kinda falls flat around 5k up to vtec. VTEC needs to be a little lower with stock cams. Other than that, the car feels great. Much improved over a stock ecu.