It has been on two cars: Mine for approx 10,000 km's and my friends G37s for approx 2000 km's. Still in great shape, filters will be cleaned and oiled and ready to go. I will clean them up and post a pick of them removed from vehicle ASAP. They are in a box in my garage right now.
I bought these for the ease of install (10 minutes) and great sound they produce. The HP gains are not as significant as the GEN III's but most of the difference is in the very top of the power band. I noticed a butt dyno and sound improvement immediately with these.
