Been running a srp 1.1 for about a year, no issues, will hold up fine to anything you throw at it up until 400% nozzles. Everything is new, for that extra chunk of change, I know I have a new hpop. Good enough for me
I just, literally just, came back from getting a SRP1.1 on and it really made a difference in how my truck drives. No more dropping off on the top end, it's great. Got the SES light before, haven't seen it yet.
Gary, the guy that owns Stealth, is a no- BS guy, he will tell you the straight of it....
(which is this day, and business, is sometimes VERY hard to find...)
call him, I've been working with him for almost three years now, and have NEVER been dissapointed