Magnaflow Stainless Steel

[Broda]

Magnaflow exhausts use T-409 over T-304 which worries me because it's got a much higher ferrous content, making it rust prone,

Anyone know what the warranty situation is on them?

AND also what is the factory exhaust system made out of?

[Broda]

You can't seem to register a magnaflow product for warranty in the UK, only allows US States, therefore with the cheaper 409 being susceptible to rust it seems the biggest let down as build quality is usually good with them, and I don't want too be forking out twice, rather buy manifolds