what is the expected life of a uk gearbox with aprox 20 bhp over the standard car using an exhaust and air filter to get the power increase

 

Do you plan to drag it? It should last for ages if you don't.

 

so is after only two weeks from a rebuild by a subaru dealer a bit of a short life then?
the car has now been rejected by the waranty company because of an exhaust mod that was done by the dealer nine months before the gearbox failed the first time
im have also washed there hands of it and said its upto the waranty company not them

 

more like 50