So....I swapped out my AEM intake for the Injen that arrived today and here's my initial impressions:
- The Injen is a little more difficult to install than the AEM. Where the pipe from the TB and the pipe from the fender well meet is not exactly spacious and it's a little hard to get them to line up correctly.
- I didn't have to cut the inner fender liner but I did have to "notch" the plastic flap extending from the splash shield as the fender liner does touch the lower pipe and bulge slightly.
- Much more driveable than the AEM. Throttle response is MUCH improved and the "lag" or "hesitation " is gone for the most part. I agree with people that say AEM didn't research their R18 version properly, instead choosing to be the first to market. The sizing of the pipe around the MAF sensor makes the difference here.
In short, both are pretty good products quality-wise. However, Injen put more time into research for theirs and it shows. Game, set & match to Injen---