Ever wanted to change the volume of your exhaust on the fly? Some aftermarket exhaust systems already have integrated bypass or reroute valves built in to instantly turn a street legal sports exhaust boom into an all out racecar growl. A very naughty toy indeed.
Electonic cutouts installed on BMW E90 M3 Sedan - CES MOTORSPORT - YouTube
Some time ago I was actively searching for a cost effective solution to these exhaust cutout systems that can be sandwiched into the existing install but have found very little options that were electronically activated. Some early Apexi models operated through a cable piped into the cabin and triggered with a tug. There were also DIY-ists out there who fabricated their own with the clever use of a modified throttle body
Fortunately electronically operated ones are now made more available with more aftermarket manufacturers jumping on the bandwagon. These electronically operated versions are wired to a motorized solenoid that shuts or open a bypass valve. It also has flanges on both ends for ease of installation and removal.
Where there are sought-after products, cheap knock offs will follow. But not that anyone patented the idea in the first place. It's just nice to know people make cheaper alternatives. I found this on the marketplace just hours ago posted yesterday by andysky5, a regular here. Priced at RM580, it is not spare change nor can I comment on it's value either. But if one ever drooled over such a toy, it's quite the affordable route. Virtually stealth when the valve is closed, one can finally avoid detection from the authorities, the wife, or the parents. This is not a paid ad just in case.
For Sale: Exhaust Cutout Valve - Electonic
Application wise, you can have it bypass the mufflers altogether for the ultimate flow in forced induced cars or you can bypass certain restricted sections of the rear mufflers to achieve a louder tone, but not too overwhelming. Ultimately, the cars that will benefit most from an exhaust cutout valve are the turboed ones. NA cars, more novelty, yet priceless when a 6 or 8 cylinder is let to scream in the open. - at will
More videos of the possibilities :)
HEMI Dual Exhaust Cutout Valves- Engine Running - YouTube
bmw m5 electric cut out dmh performane - YouTube
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