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Hello, I have a Thorney stage 1 sri turbo which I am looking to get an exhaust for. If I was to buy a full turbo back decat exhaust I know the Car should be mapped for performance benefits however Thorney have stopped mapping stage 2 or stage 3 so to see any benefits I'd have to bite the bullet again and pay for regal to map it.
Could I fit the exhaust and leave it how it is or could this cause problems in the long run? Am I better off just getting a cat back? Thanks
Could I fit the exhaust and leave it how it is or could this cause problems in the long run? Am I better off just getting a cat back? Thanks