04-26-2024, 01:36 PM | #1 |
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New MAD Product Release - G87 S58 M2 Valved Axle Back Exhaust
MAD G87 M2 Axle Back Exhaust The G87 M2 excels in nearly every aspect compared to its precursor, but the prevailing concern among enthusiasts lies in its sound quality. Similar to its predecessor, the S55 in the f87, the S58 in the current generation still leaves room for improvement. While the stock sounds are a step up from the previous generation, they still have an excess of raspiness that fails to convey the refined aggression inherent to the brand's signature performance models. MAD remedies this shortcoming with a valved axle back exhaust system that delivers a deeper, more impactful note, and adds a level of amplification beyond the stock version. When paired with the optional single midpipe, it yields an even louder, smoother, and fuller sound. To achieve the desired sound volume and tone befitting the G87 M2, we increased the tubing size to 76mm (from the stock's 70mm), which reduces back pressure and allows a freer flow throughout the system. The larger piping diverges into multiple paths as it approaches the vehicle's rear, the choice of which is determined by the factory exhaust valves that are retained. When the valves are closed, flow is directed into the MAD muffler, and exits through the two inner tips. This restricts noise during low-speed driving and produces a more subdued yet deeper sound. When the valves are open during high-load conditions, most gases bypass the muffler entirely for a near-straight pipe design, achieving maximum aural enjoyment. This harmonious balance satisfies a range of tastes and offers civility or passionate aggression as the situation demands. MAD has determined this combination to be appropriate for the brand's signature performance models that cater to discerning enthusiasts who want the best in all scenarios. Visually, MAD's G87 M2 exhaust is meticulously constructed entirely from T304 stainless steel and TIG welded for superior visual appeal and color. The entire system is brush finished for a perfect look straight out of the box. The attention to detail isn't limited to the unseen parts once the exhaust is installed; it extends to the exhaust tips as well. MAD's exhaust includes substantial quad 4.5-inch (114mm) clamp-on exhaust tips. Despite their large size on paper, the tips seamlessly integrate and fill the factory cut-outs, achieving the OEM+ look with an added touch of audible attitude. Features: Connects to Factory Midpipe (Cutting required) or MAD Single Midpipe (No Cutting required) Maximum gains of +5 HP and +5 lb-ft of torque Pleasingly louder, sportier sound Drone abatement technologies reduce cabin resonance 4.5-inch (114mm) tips Reuses stock exhaust valve actuators, and the operation of exhaust valve is unchanged so the exhaust tone can be adjusted via the M-drive settings Includes extended valve harness Computer-controlled exhaust valves are retained and limit noise during low-speed driving, and open fully during high-load conditions 100% 304 Stainless Steel construction Factory-like fitment with included mounting hardware Release Date July 18th Visit our site for Pricing
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Last edited by Info@mad-us.com; 04-26-2024 at 02:38 PM.. |
04-26-2024, 03:03 PM | #2 |
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Mods: -MAD catless downpipes -MAD Axle back Exhaust -MAD Front mount intakes -Stock Midpipe.
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04-27-2024, 11:24 AM | #3 |
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Never mind - found the pics on your website.
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2017 M2 | MGM | 6SPD Std | RWD | MP Exhaust | CSF FMIC | Active Autowerke DP w/ HF CAT | FTP Charge & Boost Pipes | Fortune Auto series 500 7k/14k coilovers | CDT Audio ES Gold Fronts & HD series Rear | Richland Forged Project Nurburg RF-GT4 Wheels | AudioControl LC-6.1200 | JL Audio TWK 88 | CF Goodies
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04-27-2024, 03:09 PM | #4 |
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Drives: 320d M-Sport, X1, 525d
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Is this compatible with cars that has OPF? And shot you and email very keen to know if we can run this catless DP without a tune without resulting in power loss due to low back pressure?
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04-27-2024, 10:08 PM | #5 | |
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If you leave your factory midpipe and opf intact you can just cut and bolt this one without any issues. There are no power losses from adding a catless downpipe without a tune but, you won't see a significant gain either until it's tuned.
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05-10-2024, 10:59 AM | #7 |
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Owner of the G87M2 Featured
Shout out to Anthony from MAD-US for the help on this Axleback. Completely changes up the sound the car and looks absolutely phenomenal. As it sits, the car currently has the MAD Catless Downpipes, the MAD Front Mount Intakes, the MAD Axleback and not shown in the video is the sound difference that the SST Valve Controller made. I'll be looking to post a video sometime in the next week or so to showcase the difference in sound. It sounded great with just the axleback, sounds even MEANER with the valves being able to open fully. The tone is nice and deep with plenty of crackles and pops without any added raspiness. It makes the intake whooshes sound even louder which is always a great. With valves closed, the sound is extremely similar to stock which provides comfort when cruising. Single midpipe coming soon but still debating between resonated and non-resonated. Quality and fitment is absolutely flawless, you can't go wrong with anything from the team over at MAD!
Pro Tip: Disable the Active Sound Design module via Bimmercode to ensure you don't get any crappy fake noise inside the cabin. Last edited by g87_FDV; 05-10-2024 at 04:10 PM.. Reason: typo |
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05-10-2024, 09:24 PM | #8 | |
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05-11-2024, 07:40 AM | #9 |
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No offense meant here or anything, but your description of your exhaust here is almost verbatim from Dinan's description of their G87 exhaust. What's up wit dat?
The G87 M2 excels in nearly every aspect compared to its precursor, but the prevailing concern among enthusiasts lies in its sound quality. Similar to its predecessor, the S55 in the f87, the S58 in the current generation still leaves room for improvement. While the stock sounds are a step up from the previous generation, they still have an excess of raspiness that fails to convey the refined aggression inherent to the brand's signature performance models. MAD remedies this shortcoming with a valved axle back exhaust system that delivers a deeper, more impactful note, and adds a level of amplification beyond the stock version. When paired with the optional single midpipe, it yields an even louder, smoother, and fuller sound. To achieve the desired sound volume and tone befitting the G87 M2, we increased the tubing size to 76mm (from the stock's 70mm), which reduces back pressure and allows a freer flow throughout the system. The larger piping diverges into multiple paths as it approaches the vehicle's rear, the choice of which is determined by the factory exhaust valves that are retained. When the valves are closed, flow is directed into the MAD muffler, and exits through the two inner tips. This restricts noise during low-speed driving and produces a more subdued yet deeper sound. When the valves are open during high-load conditions, most gases bypass the muffler entirely for a near-straight pipe design, achieving maximum aural enjoyment. This harmonious balance satisfies a range of tastes and offers civility or passionate aggression as the situation demands. MAD has determined this combination to be appropriate for the brand's signature performance models that cater to discerning enthusiasts who want the best in all scenarios. Visually, MAD's G87 M2 exhaust is meticulously constructed entirely from T304 stainless steel and TIG welded for superior visual appeal and color. The entire system is brush finished for a perfect look straight out of the box. The attention to detail isn't limited to the unseen parts once the exhaust is installed; it extends to the exhaust tips as well. MAD's exhaust includes substantial quad 4.5-inch (114mm) clamp-on exhaust tips. Despite their large size on paper, the tips seamlessly integrate and fill the factory cut-outs, achieving the OEM+ look with an added touch of audible attitude. Features: Connects to Factory Midpipe (Cutting required) or MAD Single Midpipe (No Cutting required) Maximum gains of +5 HP and +5 lb-ft of torque Pleasingly louder, sportier sound Drone abatement technologies reduce cabin resonance 4.5-inch (114mm) tips Reuses stock exhaust valve actuators, and the operation of exhaust valve is unchanged so the exhaust tone can be adjusted via the M-drive settings Includes extended valve harness Computer-controlled exhaust valves are retained and limit noise during low-speed driving, and open fully during high-load conditions 100% 304 Stainless Steel construction Factory-like fitment with included mounting hardware
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2017 M2 | MGM | 6SPD Std | RWD | MP Exhaust | CSF FMIC | Active Autowerke DP w/ HF CAT | FTP Charge & Boost Pipes | Fortune Auto series 500 7k/14k coilovers | CDT Audio ES Gold Fronts & HD series Rear | Richland Forged Project Nurburg RF-GT4 Wheels | AudioControl LC-6.1200 | JL Audio TWK 88 | CF Goodies
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05-12-2024, 08:30 AM | #10 | |
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Last edited by Info@mad-us.com; 05-14-2024 at 12:01 PM.. |
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05-12-2024, 08:58 AM | #11 |
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I guess that's why it's called "artificial" intelligence?
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2017 M2 | MGM | 6SPD Std | RWD | MP Exhaust | CSF FMIC | Active Autowerke DP w/ HF CAT | FTP Charge & Boost Pipes | Fortune Auto series 500 7k/14k coilovers | CDT Audio ES Gold Fronts & HD series Rear | Richland Forged Project Nurburg RF-GT4 Wheels | AudioControl LC-6.1200 | JL Audio TWK 88 | CF Goodies
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05-21-2024, 01:23 PM | #12 |
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MAD HAPPY! Just pre- ordered the MAD exhaust for my soon to be delivered little beastie!
Is it July yet?? heh heh
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2017 M2 | MGM | 6SPD Std | RWD | MP Exhaust | CSF FMIC | Active Autowerke DP w/ HF CAT | FTP Charge & Boost Pipes | Fortune Auto series 500 7k/14k coilovers | CDT Audio ES Gold Fronts & HD series Rear | Richland Forged Project Nurburg RF-GT4 Wheels | AudioControl LC-6.1200 | JL Audio TWK 88 | CF Goodies
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