Exhaust Problems!!!

[Coby.]

I fitted a GDI De-Cat Pipe in Spring to my standard system an had no problems at all then I bought a Magnex Cat-Back System and pretty much since fitting my Exhaust has been blowing!
The garage who did it reckon its a problem with the De-Cat, They retightened all the brackets but reckon it wil just wobble loose again which it has,
Does anyone have any suggestions on what to do except for welding the parts together?
It's really annoying as it sounds horrible and is obviously draining power, Any advice would be good,

Thanks in advance!!!!!!

Andy

 

[crazyeyezclio]

try machining the ends of the de-cat pipe flat. guessing it would only be a couple quid at a half descent engineering shop. and then put some exhaust gaskets in and a little sealant putty may help. it could be that the standard pipe has twisted in the heat.

 

[crazyeyezclio]

sorry ignore the last bit about the standard pipe dint read it proply first time