We at Supersprint in Italy pride ourselves in being the true performance exhaust specialists for all of the BMW M cars, for both earlier and newer generation models.
The 2021 BMW G80 M3 Competition xDrive is no exception.
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Beside our full exhausts, which include turbo downpipes and dual sound, valved rear mufflers, we also have developed "Intermediate Section Systems", which are designed to produce magnificent sound results, while still leaving the stock primary cats and rear muffler in place.
Our multiple Downpipe-back offerings include a "Twin Pipe" system, and a unique, "J-pipe" (single pipe) system, each providing for distinctive, unmistakeable #sound harmonics.
We also offer an exclusive California-only version, which deletes the stock resonators, retaining the secondary cats.
Come think of it, this specific system offers a nice, audible sound improvement, without affecting the emissions even by the slightest amount.
Each of our exhausts are designed to accept the std factory muffler, and the MPE muffler as well, with no modification required for the install.
All of these Supersprint systems are a bolt-on and go application, fitting just perfectly, with no interference to the cross brace, thanks to a proper routing and to the narrow-radius mandrel bends of the pipes in this critical area.
No spacers for lowering the brace are needed either.
The install of any of these Supersprint systems only takes 1 hour, requiring no welding, and/or any modification.
The Supersprint "J-Pipe" exhaust seems to be the most popular, with its proprietary design, monsterous 100mm / 4" bent pipe section, hydro formed down to oval, which equals our 70mm twin pipes in terms of combined cross section/flow.
The sound is guaranteed to become deeper, with absolutely no rasp being audible across the rpm range.
No less important, the Supersprint J-pipe while being huge in diameter, ensures stock-like ground clearance in all places.
Based upon the success of the J-Pipe system, worldwide, we believe that it makes the G80 Competition sound like it should have from the beginning, when coming off the assembly line in Munich Germany.