Good quality exhaust flex piece that is welded into the exhaust pipe, preferably near the front. This will quieten the car, reduce harmonic vibration into the body, and because it moves it will help make all the rear exhaust mounts and front mounts of extractors last.
This is a very worthwhile mod, especially to 1275.
This one suits 2"" o.d system, we also sell a size for1- 3/4" pipes.
Approx 100mm long.