have you looked at the 4.4i's dual tips/muffler? I think they look amazing on the vehicle and I'm sure there are guys willing to sell those. I myself love th elook of the 4 round tail pipes on the 4.4i but went with the 4.8iS system purely for the sound. I'm debating on trading tips (as I still have the 4.4i exhaust system) tho so I can go back to the 4 round tips too. I simply love that look

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I swear, my cars are like a girlfriend.
Sometimes its a rough ride, sometimes its smooth motorin'.
Sometimes she doesnt like how i treat her and sometimes i dont like how she behaves.
BUT at the end of the day, she loves it when I am inside her.

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'91 850i
'05 X5 4.4i
'09 Clubman S