WBM346Z Build Journal

Today the Supersprint Exhaust arrived all boxed up and new. Even though I won't be installing this for some time I was too excited so I unboxed everything to have a look. I didn't go as far as removing the shrink-wrap packaging as this will protect the individual pieces enough until it comes time to install. Unfortunately the Sports Muffler had sustained some minor damage in transport. You can see one of the hangers on the left hand side of the below photo has been bent inwards. I emailed Best Exhaust and sent them the photos of the issue. They spoke to Supersprint in Italy about it directly and they advised that my warranty would not be voided if I chose to remediate the damage myself (ie bend it back to shape). So rather then go through the painful process of some kind of warranty claim or replacement I opted to just remedy the situation myself. At least I have it in writing that my product warranty will still be honored now if something happens to that hanger ...

Almost a requirement of any good build is an exhaust upgrade. Everyone from school boy tuners to fully blown racers do it. So now it was my turn to have a look. There is a very exhaustive and well written thread (Thanks to aznbo187 over at M3Forum) that covers all of the potential options you could ever imagine for the E46 M3. Now my drivers for the exhaust were I wanted; an all-in-one ready to go package (as usual), a performance increase, a little bit of extra noise without being obnoxious and a taming of the tinny rasp all E46 M3's have. There are multiple options to address the noise, tinny rasp and all-in-one requirement, but after a bit of research there was only one that offered a confirmed and consistent performance increase and this was the Supersprint option. So with that in mind I was very quickly set on the Supersprint offering without really jumping into anymore research. I didn't see any point spending any money on anything that wouldn't provide a performa...