You do not have to cut, you could add a small piece of vacuum line, but the "t" fittings on the MSP are barbed like a fish hook, so when I went to pull it off, the hose snapped off about 0.25". Wierd. I did find since then that there is what appears to be a vacuum port on top of the intake manifold with a black cap on it. I do not know what it it for, I assume for cruise control on the ES. You could likely tap in there and maybe get a more accurate reading (but I doubt it).
I have noticed that I get the most boost, 6.5-7.0 psi in top gears, like fourth and fifth, cruising at 3500 and then just easing on the throttle. WOT from a stop to redline will only show @5.8-6.4 psi. I wonder if the 3" CAI is slowing down the intake air speed, although that really should only make a difference after the throttle blade. I may switch down to a 2.75" CAI to see if there is a difference. I am also going to put the stock airbox back in for a few days while the CAI is being bent up out of aluminum. That should be tomorrow. I also added a ram air tube from inside the valence all the way up the tube to get more cold air in, it turned out to be very effective.
I bought it from summitracing.com, I am an American car hot rodder by heart, and have delt with them a lot. They have good return policies, and all the little Honda shops around here don't ever have anything you want in stock. Unless it's for a Civic. They got it to me in two days with extra shipping fees. Price was competitive. I think it was $125. The locals wanted $118, but 2-3 weeks to get.
I have exceeded my bandwidth for my site for the month, so they suspend it for an hour at a time. I uploaded a lot of pics and stuff in one day. After the first of the month it should be up and running full strength. I have had that site for 8 years, I guess they finally want me to pay for it. I might.
Exhaust is in the cards soon too.
Britt
p.s. Mazdaspeed rep gave me an orange MS hat to match our car!
