Sports Series 4" High Flow Catted Downpipe for the 5/6/7 Series N55 (6 Cylinder) Engine g21 it will blend into the

it will blend into the engine bay and look like the factory turbo inlet hose

0 B58 Engine (A90/A91)

we form mold casted our "J" pipe out of 6061 aluminum for the ideal flow just like factory

Note - For customers who have the Aquamist Methanol Injection Kit

Grab it and squeeze the rubber hose and you will be surprised how easily it collapses

Sports Series 4" High Flow Catted Downpipe for the 5/6/7 Series N55 (6 Cylinder) Engine g21 it will blend into theOur Competition Series 4" Downpipes for your 2011 16 535i (F10), 2011 16 640i (F13) and 2011 15 740i (F01). Key Features: Made in the USA! Manufactured in house. Available for the 2011+ BMW 535i (F10) with the N55 Engine. Available for the 2011+ BMW 640i (F12 F13) with the N55 Engine. Available for the 2011+ BMW 740i (F01) with the N55 Engine High Flow 200 cell metallic catalytic converter used. Better throttle response and faster turbo spool up