I'd be really interested in this diffuser. I think it is an aftermarket piece though. You're right, it is molded that way as the cut is also extruded inwards. Also, I don't think you'd lose any significant performance since the stock muffler has two pipes coming out of a single muffler already. Especially if you have hollow mufflers. But some may disagree. Totally worth the look though.I honestly the the Avante AD in Korea comes like this with the quad tip exhaust. I've seen pictures of them on lifts and the cuts are way to clean and look almost exactly like the single stock cut out we Elantra Sport owners have, just on the other side. If you look closely you can see it isn't cut but molded that way. This leads me to believe that the Avante AD comes with it or at the very least there is a company out there that makes it. And I like to have a mix of performance and looks and definitely would not mind quad tipping it. It's not like I'm gonna be going to the track. I doubt I will notice the performance loss that much.
can you prove your words?Splitting the exhaust like that will reduce power as the exhaust will be less efficient due to added bends in piping.
Wonder if this would fit?Has anyone found anything similar to this diffuser? Im looking to get a quad setup for my ES but don't want to cut my stock diffuser. Ive searched a lot and can't find anything.