Hello, I am wondering if anyone would be willing to let me borrow the stock exhaust from their 135i. This will include everything from the end of the downpipes back to the tips. I am an engineer and my plan is to develop my own exhaust system designed for purely performance and ease of installation. In return for letting me borrow the stock system, if the lender is impressed with the results I will give them the finished system at cost. I expect this project to take around 4 months from when I receive the stock exhaust. Let me know if you are interested. Thanks.
-Nate