Hi Damdy,
I have a complete Duratec exhaust system for a 7 type car which comprises of the following parts:
4 x Header Pipes, with 1 1/8" internal dia.
Collector box with catalytic converter.
5" dia silencer box.
90 deg tail pipe for silencer to convert silencer into normal side exit as seen on 7 type cars.
Extension pipe to allow exhaust to exit to rear of the car which could be a plus if planning on doing any track days as the noise monitors will not pick up as easily.
The system was used on a Tiger R6 and I upgraded the system when I bought the car from Tiger Racing about 18 months ago to do away with the cat and fit a larger silencer.
I can be contacted on 07731049540 for further info / details
Gazza