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| 08-31-2021, 08:12 PM | #1 |
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Brigadier General
 
1933
Rep 4,947
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New MAD Product Release- 3.5" N55 Downpipe W/ Bracket 135/335
MAD BMW E CHASSIS N55 DOWNPIPE 135 335 Upgrade from the stock N55 downpipe to the MAD N55 catless downpipe for maximum airflow, power, and sound!  By removing the stock catalytic converter, you delete all turbo restrictions allowing your turbo (stock or aftermarket) to spool faster and achieve maximum power. Expect up to 30 HP increase on a stock car with a tune, even more with an upgraded turbo.  Features: Compatible with right hand drive and left hand drive vehicles Smooth bends for maximum airflow without any drone Up to 30HP increase on stock turbo, even more on upgraded turbo Gaskets and mounting included Fitment: 2011-2013 BMW 135 2011-2013 BMW E chassis 335i & 335XI 2012-2015 BMW X1 35i
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