cause with an intake, ypipe and exhuast my car makes alot of noise and vibration... i believe my timing getting retarded for no reason and i always run premium fuel anyways so im not affraid of knocking.
just because ur running premium fuel does not exempt ur motor from experiencing knock....it was designed as a safe guard to protect your motor...if u want to eliminate that...well...thats ur decision......take ur chances......
If the 3MZ has 2 knock sensors (which I thingk it does), some of your options include relocating it to a quieter area or rewire at the ecu to "virtually" eliminate the problematic sensor. Here how at SG
I agree with the advice above though. Make sure you've tuned the engine properly before even considering such a mod.