Quote:
Originally Posted by Simmo_M
What about in regards to after market exhaust pipes and warranties? How far back can you? Cat-back and it shouldn't be any problem?
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If they can't prove beyond a reasonable doubt that changing the cat back damages the drive line then they need to honour the drive line warranty.
Changing the cat itself without a retune can mess with the turbo though... So don't change that without a supporting tune.