Pete-B Posted May 28, 2011 Share Posted May 28, 2011 Anyone got any idea what a Powerspeed 4-2-1 or alternative exhaust would cost for a 150 Sigma and what difference to performance it would make? Edited by - Pete-B on 28 May 2011 19:27:41 Edited by - Pete-B on 28 May 2011 19:31:38 Link to comment Share on other sites More sharing options...
Graham King Posted May 28, 2011 Share Posted May 28, 2011 Pete, not sure about for the Sigma but for a k-series a power speed is about £1000 (without cat) fitted. Assuming they have a pattern for a sigma then I would expect similar prices. As to difference it will make, I can't really comment for a sigma but on a k-series it sorts out a dip in the midrange torque curve, let's it breath more easily and is a must before further engine mods. It also obviously depends on what setup you have at the moment. The guys at Powerspeed are very helpful so give them a ring. Graham Link to comment Share on other sites More sharing options...
The Pikey Posted May 28, 2011 Share Posted May 28, 2011 I fitted a caterham cat bypass pipe and a powerspeed exhaust on my 125 sigma and the difference was like night and day. I really was a whole lot quicker. Jason Link to comment Share on other sites More sharing options...
Pete-B Posted May 28, 2011 Author Share Posted May 28, 2011 What sort of cost Jason? Link to comment Share on other sites More sharing options...
The Pikey Posted May 28, 2011 Share Posted May 28, 2011 I bought them both secondhand but I think the two would cost about 600 quid. J Link to comment Share on other sites More sharing options...
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