Originally Posted by kleach18
How much louder I wonder.... They have a few systems in stock that I could pick up today and install tonight.... It's just so tempting but not if it's a stock muffler with different tips...
No, No... it will still be louder than stock. I quite like the way the German 135i's sound with a PE. I never knew there was a difference until a few months ago.
I've even heard a PE on a 116i hatch and it sounds awesome! I think with an N55 the German system is not that big of a deal., I think for an N54 with the secondary cats... you need more volume.
I would say buy the PE locally at a German dealer. You can always ask them what the difference is too. But I really think you will be happy with the German spec PE.