Not sure which 2004 BMW Z4 Cold Air Intakes are right for you? We have over 18563 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"The instructions were a somewhat weak and the pre-drilled housing holes were a little off. The MAF was tricky because the natural position to insert it was backwards. As a novice it took some trial & error to figure out what I did wrong. The Volant website should add some troubleshooting ideas to help out. Overall, I am very pleased with the look, sound and performance. Combined with my Borla exhaust, my power and sound upgrades are terrific!" —James K from State College, PA bought a Volant Cold Air Intakes for a 2004 BMW Z4, 4.7L V8.