Hi there i did ask Seat what they would say about this and he said obviouslt it will effect the warrenty on the exhaust which i replyed "well duuurrr" lol but other than that he said nope will be fine, might just be worth calling your dealership though to make sure 100% you won't have any problems i took my car in there re-mapped with exhaust and air intake and filter and they still replaced my exhaust recurculation valve under warrenty lol
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