For BMW E84 X1 35i 2012-2015. For BMW E82/E88 135i 1M 2008-2013. Note: Intercooler not included. For BMW E90/E91/E92/E93 335i 335xi 2007-2013. The coupler is made of high-performance silicone tubing, which can withstand more pressure and achieve higher performance than the original.
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