A biturbo is surprisingly quiet, as long as you have a good seal between the engine and the pipe. (also make sure it still has the glass packing if it is a used pipe) I have had a biturbo for over a year, and it runs just as good as the day i put it on. It simply allows the engine to rev a little higher. Its not like putting on a bore kit, where it will tear up your transmission. hehe!
Re: Tomos Biturbo
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