I just installed my megan dp I noticed the oem lower tie bar were missing. Is it worth buying the oem or an aftermarket brace? If so what bolts because they are also missing.

 

You can pick up the stock tie bars for fairly cheap. One of those parts that no one really cares about, in my opinion. I sold my aftermarket brace because it rubbed against the new DP I had. Never got around too purchasing a replacement, so I've been without.

Didn't realize Buschur sells a kit with the necessary bolts and spacers until after I sold my brace.

So, I guess to answer your question, I didn't notice much difference with or without a brace. If you had one, I'd keep it on. If you don't have one, I don't think it's something to lose sleep over.