| Rating | Name | Model | Review |
| |
| 9 | Kenton von Hollen | M3 | "Product works better than i expected minus the loud exhaust...takes a long time to get used to. Otherwise has very good power delivery and scary fast when running meth." |
| 10 | Gus Manthos | M3 |
| 10 | Kenton von Hollen | M3 | "Excellent power, excellent kit. I had a couple issues as my turbo was faulty but was replaced under warranty as well as my scavenge oil pump which siezed because of the turbo failure. All in all excellent customer service and I will continue to enjoy my stage 2.5!" |
| 8 | Kenton von Hollen | M3 | "Recommend going to stage 2.5 as it gives you a fully reliable engine and so much more power." |
| 9 | Rob Elias | M3 | "I could not be more satisfied with this kit in general and the whole experience from day one working with hpf has been incredible! I could go on and on." |
| 9 | Jim Pak | M3 | "Awesome kit. Amazing quality and performance. Had a few minor issues at the beginning but now everything is fixed and running well. Scary fast at full throttle in 3rd and 4th gears, when I can get traction that is." |
| 10 | george frem | M3 | "excellent" |
| 10 | Tommy Reyes | M3 | "This kit is anything short of amazing. Quality and attention to detail are outstanding. The power is incredible and the drivability seems stock until you want to unleash what its really capable of." |
