As you all know I've had stage 4 fitted at courtney, they only managed to get 275 BHP/ 326 lbs torque, instead of the indicated 280/290 bhp, Courtney have always maintained this was due to the exhaust not being a 63 mm bore, when mine was measured it was just 6mm under. When I returned from Courtney I spoke to the exhaust builder, they were adament the exhaust was capable of over 300 bhp, so I was back to square one, piggy in the middle as usual. I spoke to Miltek, there were none in the country, I then asked Blue Flame, received the exhaust and fitted it the next day, the only problem was it was a poor fit, it was fouling the rear beam. I got in touch with Blue flame and ended up taking it back to them whilst fitted. They agreed it was close to the beam but couldn't understand why. after 5 minutes of scratching their heads they came up with the conclusion that either my front pipe or sports cap was too long so was causing the problem, they ended up cutting and shortening the exhaust to make it fit properly. I'll be back to Courtney soon to see if we get the predicted power. This is not a thread to call Courtney in any way, or to start an argument, they have always offered their help whenever I have asked.