
This is my silverstar that I fitted with a universal "shorty" mega silencer for £28:
http://www.ebay.co.uk/itm/260906653239? ... 1497.l2649The silencer is 43cm long.
In order to make it fit, you will need a reducer.
I bought one from this car parts place in stainless for £6.50:
http://www.mijexhaustparts.com/I ordered a 55mm ID (to fit the silverstar downpipes) to 44OD (to fit the new silencer inlet) in a length of 100mm

It took about 10 mins to fit it all. The longest part being removing the sebring silencer.
The new silencer is less than half the weight of the old one.
When I started it; it was LOUD
However, the baffle was removeable (three screws) and as you can see it is missing most of it's baffling material.
I guess this is the reason why it is so cheap (this is mentioned a few forums):

However, £5 will buy me some more baffling material
**update** baffle rewrapped in a decent thickness of fibreglass baffling and this has reduced the loudness somewhat. It has also reduced the tone to something deeper. To be fair, it is still loud **