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Trackday pipe - diameter / flow /noise ?

Joined Apr 2009
149 Posts | 0+
1999 Mille.

OK, I'm modding an old single sided exhaust to be a race pipe and will replace the perforated tube which carries the gasses from front to back with a straight, larger diameter with plenty of wadding, but:

What size tube for a single sided pipe?

Anyone got a 'race' pipe and can tell me to approx diameter for shop bought ones ?

I still want it to be about 104 DB max for trackdays.

The link pipe into the std can is 65mm, but surely that's too large as an exit ?

On my old SP1 , I had twin 50mm pipes (which is the equivilent of 65mm single pipe using Pi x r2 and all that)

I'm off to Rufforth autojumble on saturday to buy the perf tube , so the info would be useful

cheers

Miff
 
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