Now you have the look of expensive "tuner designed" exhaust systems at a fraction of the price. These tips will give the styling features you want without replacing the rear muffler. Most applications are easy bolt-on. The 140 chassis S Class and129 chassis SL original exhaust tips require trimming of the original muffler's tips. 2003-2008 SL (R230 chassis) need the bumper trimmed to fit the exhaust tips. But for the late model ML's it is an easy install. price is for a pair of exhaust tips. Great deal.