M42/M44 bolt-on ITB kit seems like it was basically design for the using the MAF so no other mods are necessary.
if you have stand-alone ECU or +alpha-n then can take out the MAF and the airbox to be completely ITB setup.
I thought it was decent price compared to the Diblas kit which has more larger diameter so needs upgrade on the engine side.
after installation, at low to mid is somwhat a drag compared to the stock setup!? but from the 5K rpm its a different world!! plus at any rpm its very very responsive!!!
plan to put Apexi AFC-Neo which I hope will tune in better using the Innovate LM-2. (just didnt have much money to buy/install/setup for standalone ECU)
installation is easy if you can take out the whole intake manifold out. just needs some vacuum hoses (used silicone hoses for durability) also put in the Tomei fuel regulator
think the difficult part for me was to dial in the 2 separate manifolds for the butterflies to be in sync.
took me about 2.5 days due to some issues and needed more 8mm vacuum hoses.
other difficult part was installing the carbon air box and its screws. was informed by RHD that I should unassemble the stacks and install the airbox then reinstall the whole kit. but either way for my car since having the battery upfront it would have been difficutl.