Yesterday i just changed my standard throttle body to super90 oversized throttle body for my MIVEC. The size is 70mm, which is 10mm more than the standard throttle body. I made up my mind to go for super90 throttle body because of its quality. Other than that, i've already tested it on my previous 4g93 non MIVEC setup and all i can say it is worth the price.
Some of the pictures during the throttle body installation....
the superhero - super90 billet throttle body
need to take out the intake and then port and match it with the size of the new throttle body which is 70mm. This process is very important ; if the intake is not port and match then you wont feel any increments from this throttle body upgrade.
the installation was quite plug and play. i think i took more pictures of the process but i dont know where all of them gone!
After that, my mechanic checked the air fuel ratio by innovate wideband kit. This is very important because we can know the air fuel mixture. If it is too lean then it will be dangerous for the engine and if it too rich it will reduce the engine performance and the engine will become fuel guzzler. So, with this kit, my mechanic tuned the engine to the correct air fuel mixture.
The outcomes? YES! the throttle body upgrade and tuning do wonders. I can really feel the increments. I'm so happy since once again the money that i spent is worth it after all. So, i would like to recommend this upgrade for those who already planned to upgrade the throttle body. BUT, i would like to stress that bigger doesn't necessarily means better. Consult your mechanic first whether the throttle body upgrade is suitable for your engine setup :)