AdamMJ Posted March 18, 2021 Share Posted March 18, 2021 Hi folks, wondering if anyone can offer any advice on how the Design Tek pre silencer sounds with a standard (ish) back muffler? Whilst I would love to fit SSI’s, can’t quite afford it at the moment, so hoping the pre silencer will make it a bit more raspy without too drone. Many thanks Link to comment Share on other sites More sharing options...
Ian Comerford Posted March 19, 2021 Share Posted March 19, 2021 I understand you can also get a straight through pipe to replace the pre, this might achieve what you want. Just a thought. Link to comment Share on other sites More sharing options...
SilverWT Posted March 19, 2021 Share Posted March 19, 2021 The standard pre silencer is already straight through. It is a perforated pipe and there is no packing in the shell, see pic below. If you have a std, non-sports rear silencer you will get a minor increase in sound by replacing the pre-silencer with a straight pipe. If you have anything like a sports rear silencer (60 mm tail pipe), or above, you are unlikely to notice a difference. What car is it? SSIs are really designed to work on 3.0 and below engines. Mark Link to comment Share on other sites More sharing options...
Ian Comerford Posted March 20, 2021 Share Posted March 20, 2021 I think I’ve seen them without the packing Mark, slightly simpler. Not sure it makes much difference but recall claims it did, better flow. Link to comment Share on other sites More sharing options...
AdamMJ Posted March 20, 2021 Author Share Posted March 20, 2021 Hello, my car is an ‘81 3.0 sc. it has a Turbo Thomas stainless back box which sounds fine but not ‘raspy’ like a Dando seems to. I was wondering if it was the stock pre-silencer that was deadening the sound Thanks for the advice Link to comment Share on other sites More sharing options...
mean in green Posted March 20, 2021 Share Posted March 20, 2021 If you like the raspy tone then really you should just hold out for some SSIs. They must be about the best “bang for buck” thing you can do to an SC, not just their metallic sound but the way they change the feel of the engine as well. It’s a very noticeable difference and you’ve already got a proper silencer after all. Link to comment Share on other sites More sharing options...
GaryH Posted March 20, 2021 Share Posted March 20, 2021 Agreed ^^^^ SSI's or go home Link to comment Share on other sites More sharing options...
Ian Comerford Posted March 21, 2021 Share Posted March 21, 2021 Agreed again^^^^^^ Link to comment Share on other sites More sharing options...
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