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Old 02-02-2010, 02:00 AM
Rob. Smith Rob. Smith is offline
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Join Date: Jun 2006
Location: Newcastle, Warners Bay, NSW
Cobra Make, Engine: RMC . 393 Dart alloy block Stroked 351 alloy heads ..all the goodies plus a pre oiler. al
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Quote:
Originally Posted by BMK View Post
Summit Racing have a perforated cone - see their exhaust section.

www.summitracing.com

This I am told breaks the exhaust up. The total area of the holes equals the internal diameter of the pipes which does not restrict flow.



It may be worth dropping Aussie Mike on the forum a PM, as he has experimented with exhausts - building a high quality side pipe system for my Cobra. You will find him on the Dark Side forum on the right of the main clubcobra page also..
Thanks Bernie...I've seen these cones...a bit expensive for a bit of perforated s.s. rolled into a cone. (I mean to buy , import and then find out they don't work) I'll have a go at making up a pair and see what happens.
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