Hi, For many years I had a old Falcon twin exhaust on my Spitfire 1500, which started to crack on joints so I replaced it with the Phoenix twin system. The Phoenix system was very loud and the final straw was on the motorway from Duxford last October, by the time I got home my ears were ringing. I also found found that on cold start-up the phoenix exhaust would cover the bot lid in little black spot from the exhaust. So I replaced the complete system for the Maniflow mild steel system. This system is excellent, much quieter but still sporty and fits the car better with more ground clearance. I chose the 2 silencer system, the mid silencer helps to reduce the motorway 'drone'. Maniflow customer service does take a bit of patience and I had to wait 2 weeks for them to make my exhaust but it is a great system. Tim.