Rear silencer design

[andyiley]

After a successful cat-removal on my e36 328 track car, which only liberated a single db I am next going to remove the massively heavy rear silencer & replace it with a couple of generic stainless absorption silencers side by side welded on to the back end where the silencer is.

My question is around sound levels (yes I know no-one can predict what it will end up as) and what is best for keeping sound levels down to reasonable levels?

eg. should I go for as long as I can fit, as large a diameter as I can fit, or the greatest overall volume I can fit?

I should have plenty to play with as with my decat silencers in place I am only tripping the sound meter at 84db and most TDOs want it to be under 98 - 105db I think.

[andyiley]

Thanks for that, I am thinking more:

Longest -

http://www.ebay.co.uk/itm/251481486995?_trksid=p20...

Widest -

http://www.ebay.co.uk/itm/251482151530?_trksid=p20...

Greatest volume -

http://www.ebay.co.uk/itm/251482298399?_trksid=p20...

[andyiley]

Thanks Steve, I was kind of assuming that.

[andyiley]

Thanks for that, they will literally be in the last couple of feet of the pipes.