Reviewed By Mansun C (new city, NY) Reviewed for a 2004 BMW 3-Series —11/1/2013 7:55 AM
Overall worth the buy. It would be nice to have a top cover with k&n simikar to dinan kits
Reviewed By Robert C (Fayetteville, NC) Reviewed for a 2004 BMW 3-Series —4/4/2008 1:51 PM
I own a BMW 2004 330ci,(E46)...The stage 1, easy to install, my son and I installed it in less than 20 minutes, the performance is definitely noticable. You get that deep roar when, punching it to pass or just speeding up. Noticed a slight rise in gas milage sense the install. Love the sound it makes when the ignition is turned off..(the release of vacuum). The price was very reasonable..
Reviewed By Rudy F (Sugar Land, TX) Reviewed for a 2013 BMW 3-Series —2/15/2017 8:48 AM
Installed the SP1128WB SRI on my 2013 BMW 335i. Super easy to install. Instructions were great. I was looking for a CAI that sounded good, but not overbearing, with some increased throttle response. I get a nice BOV whistle that is smooth, and not a boy-racer "look at me I have a turbo" noise. Can't really hear it inside too much with the windows up, and definitely can't hear it if the radio is on at any volume. Sounds great on a gorgeous day with the windows down driving around town. I love it.