03-06-2018, 06:40 PM | #1 |
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Downpipe or no M240i
Hi! I have a M240i with intake, catback and Jb4. Now Im running map3 but I want to run the map6 with more boost. The question is the stock dp is really big, so a new one aftermarket worth the money?
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03-06-2018, 07:42 PM | #2 |
Joint Chiefs of Staff
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Yes you will get more power by removing the restrictive stock cats and going with either fully catless or high flow cats
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