Every few months this comes up for debate, the only things I'll say are:
1) Ours are more expensive as they've been properly developed on OUR cars, not customers. We've taken the frames to the limits which most will not, we've done this at our expense. No one else has run the stickiest tyres, and a 225bhp motor to try and break one, no one else has done 3 season in a G40 Cup Car, we've engineered and designed this product to last, we're not cashing in on a passing phase. Out of 30+ frames we've now sold one has come back to have the holes re-positioned due to the car having a new front end.
2) We pay a professional to make our frames, I'm a competent welder with basic certification to prove, but I'd rather a coded welder make safety critical parts for my car, and of course my customers/friends cars. With the relevant years of experience necessary to do a precision task- I could pay a monkey to do this job, and flog frames for £249 etc, but I'm not into making masses of cash from this, it's a hobby really.
Any questions please ask, I've yet to find someone who isn't satisfied with their subframe/wishbone conversion from us