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      03-31-2024, 06:53 AM   #2946
grannyknot
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Drives: 2008 Z4M coupe
Join Date: Oct 2021
Location: toronto

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Quote:
Originally Posted by mousitch View Post
Big caveat here. I have no smog testing in my area. My guy got out his laptop after the header /bearing install and deleted the o2 sensors. He put the post o2 sensors and egt in a box and handed them to me. No codes after 750 miles. Cold start is disabled so it may stumble when under 50 degrees out at startup but all good. Runs like a striped ape. I am talking to Josh at Sevren to maybe do their OTS tune later this year just for the data logging to get it all perfect. I also waited about 6 years to do the euro headers. I have the Dkf section one and both 300 and 100 cats plus resonators laying around in a box (for sale) but just went with the tune to delete.
Josh's OTS tune is a good all around tune that you can't go wrong with but the MAF based tune is where the full potential is realized.
Any mods you have planned for the engine, headers, intake, valve adjustment and such should be done before you start data logging.
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