As I said earlier you only pay £350 for the full Mongoose because it's basically cheap, adequately made and only has a "Lifetime Guarantee", this lifetime guarantee means absolutely nothing as I found out when I spoke to Mongoose, Blue Flame, Collins Performance or what ever they want to call themselves. Take a good look at the Goose system, flanges go rusty, baffles rattle, the flexi is made out of mild steel and WILL start to blow eventually, why, BECAUSE IT'S HALF MADE OUT OF MILD STEEL AND MASS PRODUCED. It also means you have to carry on using the part which causes the biggest restriction in the standard system, the elbow. Now if Blue flame mass produced a completely stainless system with an elbow to fit a I'm sure it would cost a whole lot more than £350i only paid £350 for the full sytem lol
And as for the above, yes they are probally very good but what you going to do when they don't quite fit or crack or are shit when they finaly arrive. At least with the Janspeed/Performaance FX parts you will have someone thats not a million miles away to complain to.
And for all you guys that are going to go to Mongoose, Blue Flame, Collins Performance or what ever they want to call themselves to get one made good luck to ya, just ask first if your new shiney system is going to be made out of the same s h i t materials they made the original system from.