Originally Posted by CharlieHustleX5

Yeah, it can be an inexpensive mod granted you find a place that welds them on nicely and without leaks for a decent price. It can be a nightmare if you take it one place that does a poor job, then to another to try and fix a mistake only for them to cost you even more money out of your pocket....

If I could do this mod again on my x5, I probably would've waitied to gather up flanges and gaskets...asked the muffler shop to put flanges on my xpipe and old resonators...so I can switch back if i need to or if I sold the car without the xpipe..