Competition Series 4" Catless Downpipe for the X5/X6 Series N55 (6 Cylinder) Engine Oil 420i and 428i

420i and 428i

each going to one of the oil coolers

We had originally thought to use the same press form process to manufacture our downpipes

With vacuum

Fits all 2016+ 120i/125i/230i / 330i / 430i / 530i / X3 30i / X4 30i / Z4 30i/20i

Competition Series 4" Catless Downpipe for the X5/X6 Series N55 (6 Cylinder) Engine Oil 420i and 428iOur Competition Series 4" Downpipes for your 2011 13 X5 X6 35i (E70 E71) and 2014 17 X5 X6 35i (F15 F16). Key Features: Made in the USA! Manufactured in house. Available for the 2011 13 BMW X5 35i (E70) with the N55 Engine. Available for the 2011 13 BMW X6 35i (E71) with the N55 Engine. Available for the 2013 18 BMW X5 35i (F15) with the N55 Engine. Available for the 2014 18 BMW X6 35i (F16) with the N55 Engine. Better throttle response and faster