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Originally Posted by Formula94
Took delivery of my '18 M550 on Friday and ordered the tune on Saturday. Next I need to decide if I want to do a catless DP, resonator delete, or both. I'm in Illinois so I need to consider emissions testing and not sure what the exhaust changes will do for the test...need to check with my local shop.
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Hi Nick, I noticed you ordered a stage 2 tune from us. Please be aware a catless downpipe is required to run stage 2. Please get back to me if you need to change to stage 1 or if we need to get you set up with a downpipe