The Sport upgrade.

The Sport upgrade.

"In this Special Series, I set out to improve the heavy, restricted and weird sounding E46 M3 stock exhaust with Supersprint's 63.5mm performance exhaust system.

This follows up on my chat on italians, and my experience receiving a dented street rear section. I hope the following gives clarity on what to expect if things are to go wrong."
- Matt

An opportunity to upgrade.

I initially spec'ed the Street / Strada rear section with the goal of getting maximum performance gains from my exhaust upgrade, with limited increase in decibels to let the CSL airbox lead the orchestra. 

Having driven for over a month with this airbox & exhaust combination. I feel there's room for a more exhaust noise. I chose to replace the dented Street rear section with the Sport version for a few reasons. 

Evidently, the slightly deeper and louder exhaust note over the Street. However, the Sport version is fitted with different tip designs: gone are the chromed, dual walled tips. They are replaced with single wall, polished tips for sportier aesthetics. Lastly, the Sport section is also slightly lighter due to a reduced canister size. 

The packaging was improved. 

Supersprint could fix packaging but couldn't fix UPS. They still didn't care and dropped the box on the porch standing up.

This time, it didn't matter as the box was oversized which allowed for proper filling of packaging material. Both ends had fitted blocks of foam that protected the sides and brackets. The muffler body was wrapped in 4 to 5 layers of bubble wrap.

The tips had more wrapping, in addition to the fiddle Supersprint original plastic & small cardboard boxes over the tips. 

I'm happy to report my rear section came in undamaged - the tips are pristine and there are no visible dents to the muffler body.

    All of this combines to give a sportier look to the rear end. Having recently fitted my 1:1 CSL carbon diffuser, space was tight with the double walled tips and chromed look out of place. 

    Supersprint also uses a variant of its laser engraved logo. It's more obvious to the eyes, which I like!

    The slanted, staggered tip angle combined with the single wall looks great. I'm excited to see it mounted next week. 


    Up next: the Sport gets fitted and I my impressions on the new sound spectrum.

    Will it overlap with the CSL airbox at crucial RPMs? Let's find out. 

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