[spookypt]

HI Alffie... Yet to see a set of side pipes that'll pass a noise test. Mainly because they're illegal anyway so noise is not the problem. A cat converter and some stainless wool wrapped in fibreglass will quiten em down but will restric flow. You could put some CONES in them to quieten em down too but that will also restrict flow and HP. Sadly, unlike the Hot Rodders working side pipes are not legal on our cars... But that doesn't stop SOME from having hem anyway!
I know one guy who lioves on the coast here that when he starts his car in teh garage it sets of the house alarm next door!!!!!!! Ooops sorry Darryl :-)