Just put in some honda mtf and mobil 1 75w-90 in the diff and i am certain my shifts are smoother, i have about 20K on the car. Easy to do, i did both at the same time given the car was already on jack stands, i also did the brakes and oil/filter.

anyone have a cai that they would recommend i was considering buying 4igs2000 intake.

 

No clue on CAIs, but I just stopped by a local Honda dealer and picked up some Honda MTF. Gonna do the tranny change before this weekend, hopefully. I already did the diff a few weeks back. I am glad to hear these things made a difference for you, since I'm using the same fluids.

 

Those snorkel intakes like AEM, INJEN and 4igs2000's scare the hell out of me. David1 has the Comptech which would be my only pick. I also like the PRM but not sure what the advantage to that one is considering the intake is still in the engine bay.

 

I love my PRM. Spoke to someone in Cinci who had the 4g setup and they said they have to avoid rain and wet conditions. Just my .02