MSCAI installed by dealer.
I just had the MSCAI installed on my 09 MS3 at Roger Beasley Mazda in Georgetown, TX on March 4th for $400.00 (plus tax). The receipt shows $70.50 for labor, $329.50 for the CAI, $9.38 for environmental charges and $27.18 for tax. They installed P/N GRMS-8M-L29 which included a bunch of Mazdaspeed decals and a filter cleaning kit in just short of 2 hours. The kit does include the air straightener and has a splash shield in front of the air filter which is located behind the drivers side wheel well liner. Since Mazda did the install, both parts and labor are warranteed for 12 months. I figured it was best to have them do the install for a measly $70.50. It feels noticably more responsive and powerful just by the seat of the pants feel. Sound level is about the same, but you can hear the BOV much more clearly. All in all, I feel it was a good deal for the money. Now on to the next mod! (drive2)