Hi.
I have been doing a bit of work on my silencers in order to address my sound problem. Before I go down the route of undertaking the work that Curtis outlined, I thought I would have a look at the exhaust system, and try and address what I think might be the root cause of the problem. With that in mind, I proceeded to get my grinder out and cut a rectangular section out of my wonderful stainless steel silencers. These have a bit of a claim to fame, as they came off a Ray Mallock GT40 and I have a clip of a review that Tif Nidell did whilst at Top Gear, on the Ray Mallock GT40, with this exhaust system on.
After cutting the rectangular sections out, I then found that they was very little packing left in the silencers. I have included a photograph of what came out of both(!!!) silencers. The paper I have put the bits on is A4, so hopefully this gives you some idea of the small amount that was left in. I have purchased some rectangular pieces of stainless steel and have had them bent and drilled, at a local machine shop. Once the silencers have been re-packed, I can pop rivet the stainless steel back on. I have purchased some exhaust packing material from Merlin Motorsport, price £13.50, and plan to do this job over the weekend.
I may well have to go down the route of adding something in the exhaust, but clearly the lack of any significant packing in the silencer, is a bit of a problem. I have also included a photo of one of the silencers.
Hopefully this will improve the situation, but I shall report back my findings in due course.
Stephen