thanks Pemler, so this is what i have found out so far, Morgan have given figures of 5bhp and 4 lpft at 7000 rpm, and 4 bhp and 6 lbft at 3500 rpm for the sports manifoid and catalyst. at nearly a £1000 pounds that is not a lot more power. the throttle body kit gives a lot more BHP at around 35 bhp more and around 15 lbft more. to get these figures you will need to spend just under £4000 for the kit and then the exhaust on top. so that works out at nearly a 5th of the cost of the car.this is way to expensive for the return. michael