I know it makes more power over my current setup (the AMS downpipe) but I highly doubt it is worth anywhere near what they showed. I think half is believable though.
English is usually pretty legit from what I've seen. I believe them that it will make additional power and especially more torque. I am trying to build an efficient setup this time where I don't have to push it to make power. 26-28psi is all I want to run, the less the better.
Regardless, supporting one of our local shops (MAP) is never a bad thing
