Exhaust, dual-outlet stainless-steel, bright tips integrated in fascia

Years 2012, 2014–15 Models 2 Factory citations 1

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Also described as Exhaust, dual-outlet stainless-steel, GS-specific

Also documented for Chevrolet

Documented applications

LaCrosse — Epsilon II, 2nd gen (2010–2016)

2012, 2015 Factory-verified

2015: 1SV, 1SL AWD, 1SP, 1SR: S; 1SB, 1SL FWD: with LFX; coded from 2012 (GM Authority 2012 RPO list)

GM factory document — 2015 buick lacrosse fleet order guide wayback, p.4.

Regal — Epsilon II, 5th gen (2011–2017)

2014 Confirmed

new for 2014 (GM's 2014 list); 2016 is left out: the 2016 guide prints it only with the included-in-equipment-group mark on the GS group 1SX (p.25), group contents

This page aggregates every documented appearance of MWN in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.