Originally Posted by m5james

The M62 has multiple displacements and variants of either with or without VANOS, so they also suffer from the same VANOS issues. BMW M62 - Wikipedia, the free encyclopedia I intentionally bought my 98 7 because it doesn't have VANOS, then the added benefit of a larger intake manifold, MAF, associated tubing, etc...all for future FI use.

I had the B&B on my E39 M5, so I can honestly say that the Magnaflow on my 7 sounds just as good. Mufflers are very simple devices, so paying for a name is almost useless unless it's something sophisticated, chambered, actuator valves, etc like something exotic you'd see on a Ferrari. The Magnaflow and B&B are pretty much just a muffler body, two pipes of perforated tubing wrapped in steelwool and fiberglass...no rocket science and justification for 10x the pricing there.




I've read those same threads, which is why in hindsight, I wish I would have done an LSx swap instead. Motor rebuild alone cost me $13k and I only got a mild bump in HP over stock. The BIGGEST hurdle I've got to cross with FI'ing the M62 is the ECU...doing a complete swap to an LSx, aftermarket ECU and turbo kits in the end would have been far cheaper. Too late now though...unless you wanna buy a 30k mileaged M62