I've seen a few PFP boxes blow out as well. I don't ride mine (RRP) as hard as others, but have had zero problems with anything so far.. I'm an old ass flatwater guy. For the most part mine installed pretty easy. I did have to do some creative padding, blocking etc to get the alignment in my hull right. I've gone through maybe 20 ish 2 gal tanks through it and no issues yet. Lots of flops,flips n splats and holding good so far. And for a carbon chamber, this one goes against the rules and makes good power. I think smaller cc motors could benefit from this pipe. I'm kinda weird and did my motor last. I got all the supporting mods first, then picked up the 964. Couldn't be happier so far.