Wondering what you guys suggest for the most hp increase. For the AWD G37 sedan. Thanks!

 

Most people would suggest the Stillen Gen 3's, but that requires a lot of time and effort to install. A great alternative would be the R2C intakes, which are easier to install and are cheaper. I had the R2C on my G35 coupe, and I'm probably going to get them for my G37 in the future. Very happy with the fit and finish and some decent gains.