I found the engine harsh at high revs. I then had an Akrapovic Evolution Exhaust system fitted at the same time as the Berk High Flow Catalytic Converters for around £2400 fitted. The harshness has now gone, the engine is alot more free revving, the car is definately quicker and now it sounds like a sports car should with around 340 BHP. Also the exhaust looks so much better than the standard one. I bought my car new in March and had the above fitted in June and have absolutely no regrets whatsoever - it really did change the car!
No doubt with the amazing deal you will get if you do your research, sorting the exhaust out should shouldn't be too painful on the old wallet!
Cheers,
Scotty