The CTS Turbo Catless Downpipe BMW N55 (Electric Wastegate) is made to maximize exhaust flow for the highest power gains. Do not compromise performance and sound with factory parts - unleash your BMW's potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe. Manufactured from T304 stainless steel, hand TIG welded and back purged to ensure years of reliable performance. Product Details: Precisely designed and tested on a real car in the real world T304 stainless steel, TIG welded back-purged construction Replaces restrictive factory downpipe Great power upgrade with uncompromising performance Incredible sporty exhaust sound, subtle when cruising No drone with factory exhaust To remove the CEL that will occur, proper tuning software must be used. The use of a Bootmod3 downpipe software upgrade is strongly recommended. For OFF-ROAD use only. Application guide (does not fit RHD vehicles) BMW X4 F26 M40i (2014-2018)

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