ktr exhaust manifold

Anyone fitted the new ktr exhaust manifold? My standard one on my 197 is blowing at the flexi. Looks a lovely piece of kit, I assume made by janspeed?

Flat spots?

I don't mind paying the cost for one if its going to solve the problem I'm not to keen on buying, fitting and paying for a remap if it gains a flat spot as I'm £1000+ down!
 
If you're not sure, the toyosport manifold + remap would cost about the same as the manifold from ktec alone. Then you'd have no flat spot and it would drive better with the remap. Even if there isn't a noticeable flat spot it would ideally still want remapping.
 
I think it was [MENTION=51896]JSD[/MENTION] who recently had one fitted to his car. He might be able to give you a bit of info on it...?