God this could could be contraversal. - but not with RC
Yes I did have some problems with the car (see the tread on RC Developments 340bhp...), but it looks like it was probably the boost valve that had failed.
Further problems came when another tuning company tried to re-write the tuning manual, consquently the car was stalling, the fuel mixture was reported to be so weak that I was in danger of putting a hole through the pistons, and the bbost was turned down from 1.4 bar to 1.3 bar, as not enough fuel was getting through on any other higher setting...............HOW WRONG THEY WERE!!
Basically the car was originally put on Power Engineerings rolling road by Autocar (I know how contrversial rolling roads are!!) and the power read out was 349bhp (I will have the full spec when I see Warrender next tuesday - hopefully), this was achieved with the stadard cat (again people are now going to diagree with this!!)
Although RC Developments are over 200 miles away from me, I still would have no reservations in ever going there again, if fact so much so, I would probably get them to change the spark plugs, just in case another garage decides that the setup is totally wrong again.
What the did (or undid from the previous tuner and re-did what they originally did), was to put back on the Power Boost Valve, made an adjustment to it, also de-catted the exhaust, through out the HKS dump valve, and re-set the Apexi S-afc and Apexi Boost controller, (apparently this took 5 hours to do), finally I think just to through mud in some faces, actually turned the boost upto 1.45bar instead of 1.4 bar, until I get the car back to Power Engineering and look at the old graphs that Warrender has, will I know for sure what the diffrence is - graphically.
As a driving experience, the car can only be described as awsome (except for doing 1/4 mile sprints at Santa Pod - mind you I still laugh when I switched back to Tarmac setting, and held the revs slightly too high - enabling me to stand still on the line and slowly slide for about 2 seconds before the car decided to grip!! - really felt the power then - by the way I believe Snow to be the best setting for this).
The car trully feels like a rocket not, and it holds all the way through the rev range, as that Black Evo 7 Extreeme in Esher found out (although may not want to admit it - 99% that it was an extreeme)
So to answer your question, long windadly, I would never hessitate, especially as warrender arranged for the pickup - because its still a hell of a long way.
Good idea to speak to Clive there, he has the patience to listen, and give good advice, especially as he must get lots of calls like this, I spend most of my life NOT answering the phone.
But get the opinion of the Board, they will all say different things, but I think a lot of people respect RC, as the do with Ralliart - but thats a different story. I personally reckon that people go to ralliart if the bough an official car, and elsewhere if they bought a so called grey import. (my opinion)