No such thing as a 'cheap' turbo mate If you skimp on cost to buy a new one or a untested used one, you'll end up either buying a proper new one or spending money rebuilding the used one.

But there are bargains to be had. Just keep away from the chocolate ones on ebay

The hard bit is getting out the siezed nuts and bolts, and if you're unlucky like me the bolts that have no head any more.