Competition Series 4" Catless Downpipe for the N26 (4 Cylinder) Engine e91 it will still be a

it will still be a question people will ask and the simple answer is on average

When intake air starts to reach the speed of sound (Mach 1) the piping size itself becomes a restriction (and yes

Now available for the 2012-15 BMW 328i/320i/428i/420i N26 Engines

as if it had woken from it's sleep

the entire system gets pushed up

Competition Series 4" Catless Downpipe for the N26 (4 Cylinder) Engine e91 it will still be aIntroducing our new Competition Series 4" Downpipes for your N26 four cylinder turbo engine! Fits all 2012+ 328i, 320i, 428i, 420i, 228i with the N26 engine (does not fit N20 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+ BMW 328i 320i 428i 420i 228i N26 Engines! Horsepower