hey guys i just got a 2014 c300(on lease) ive already done a couple moddifications ex. plastidip grill,rims emblems spoiler and etc. everything that i have done so far is removable i was thinking of doing an xpipe and a muffler delete but i dont know weather it will void my lease please help me your feed back is greatly appreciated.

pretty sure it wont

Like when it goes for service every 10000 kms will they say anything because they will be looking under the car

Why don't you ring the dealer and ask them yourself? Oh, I did a muffler delete before, and the drone was deafening, just FYI.

Just do the x-pipe. I got pulled over 3 times by cops this week because I was having too much fun on my way up on a street in Vancouver. Apparently a local is too jealous about the sound of the xpipe and keeps calling the police for a apparent aggressive driving on the hill going up. No tickets though they just pull me over and ask if I have a modified exhaust and I rev it up for them to hear it and they can't hear anything too aggressive (giggles). They just don't know that you really have to push it really hard to hear the sweet notes. The nice thing about this is it will sound really good and you won't speed too much to hear it that is why I like ripping the throttle on the uphill as the car won't really fly while hearing the screaming exhaust.

I barely noticed my x-pipe from the drivers seat, when I listened from behind it had a much better "growl" tone to it. Gonna try to do secondary resonator (secondary cats, not actually cats though) delete soon.

x-pipe + muffler delete to quad tips is quite loud, i will most likely be putting my stock mufflers back in the future as the highway drone gets annoying.

I agree completely about having a nice sounding slow car. I get to rev it and hear it while not getting anywhere quick. I'll be moving the same speed as the cars next to me but mine puts a smile on my face.