Competition Series 4" Catless Downpipe for the N20 (4 Cylinder) Engine Finish:Ceramic Thermal Coating The B46/B48 Charge Pipe Kit

The B46/B48 Charge Pipe Kit features two charge pipes

Ceramic Thermal Coating - The purpose of ceramic coating downpipes is to keep heat from the exhaust gases inside the downpipe from radiating out

Better throttle response and decreased turbocharger lag with our Charge Pipe Kit

2017 M2 (F87 Chassis) and 2012-15 M135i/M235i (F20/F21 Chassis) six cylinder N55 turbo engine

we incorporated an "H" crossover instead of a "X" crossover

Competition Series 4" Catless Downpipe for the N20 (4 Cylinder) Engine Finish:Ceramic Thermal Coating The B46/B48 Charge Pipe KitIntroducing our new Competition Series 4" Downpipes for your N20 four cylinder turbo engine! Fits all 2012 15 320i, 328i, 125i, 228i, 420i, 428i with the N20 engine (does not fit N26 engine). We've made a simple guide to help you tell which engine you have in your car. Click Here: How to tell if you have an N20 or N26 Engine. Key Features: Made in the USA! Manufactured in house. Now available for the 2012 15 BMW 328i 320i 428i 420i 228i N20 Engines!