Exhaust systems

[steve91]

I have a stock Williams 3 and the exhaust system is coming to the end of its life. Has anyone got advice on performance exhaust systems?
http://www.primaracing.com/ProductList.aspx

Has anyone used the manifold and exhaust system from Prima racing?

[Wobba]

They've only recently started doing their manifold and d/p again, so be hard to say. Probably same as Supersprint.

I liked my Magnex.

[Tommy]

personally with my mongoose system, couldnt ask for anything more.