ok, here goes...i thought my exhaust was 'blowing' but my brother has taken a look and said its the clamp where the outlet manifold meets the exhaust downpipe is where the noise is coming from & exhaust is fine - he doesnt want to attempt a repair as hes unsure whether its exhaust paste or wire wool exhaust washer? can anyone offer advice??
(his words so apologies if i have written it down wrong - hope it makes sense to someone

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