What Is an Electronic Exhaust Cutout System?
If you’re at all familiar with the culture of performance automotive enthusiasts — which we know you are, or else you wouldn’t be reading this — you’ve seen your fair share of exhaust cutout systems. These systems are common on streetcars in areas where emissions laws are heavily regulated, or for those who want a reasonable exhaust note when driving around town but still want to hear their engine scream on weekends at the track.
Why Granatelli Motor Sports Exhaust Cutouts Stand Out
Granatelli Motor Sports (GMS) recently released its own line of universal electronic exhaust cutouts, and owner J.R Granatelli created the video above to explain the features and benefits of his cutout system. It definitely stands out among the competition.
Key Features and Benefits
Granatelli’s weld-in electronic exhaust cutouts are made entirely from stainless steel and will fit virtually any vehicle with a 2.5-inch, 3-inch, or 4-inch exhaust diameter.
Adjustable V-Band Turndown Design
The cutout side of the system features a three-bolt cast flange, while the turndown itself is polished stainless steel and connects to the flange using a V-band clamp.
The majority of exhaust cutout kits require that the turndown be welded onto the system, making whatever angle you weld it on permanent. Granatelli’s V-band connection has the unique advantage of allowing the turndown to be continuously repositioned at whatever angle you want, so you never have to worry about ruining your exhaust system symmetry with crooked turndowns or future modifications slightly tweaking the angle of your exhaust.
All of the cutouts offered by GMS are professionally TIG-welded for the strongest construction and feature perfectly smooth internal pipe walls, where it’s not uncommon for other brands to have the unsightly/unprofessional look of excess welding material on the inside of the joints, which might even restrict or alter exhaust flow.
Smart One-Touch Valve and Butterfly Design
Another advantage found in the GMS cutout system is the actual design and construction of the butterfly valve. To open or close the valve on most kits, the user must hold the switch in the desired position for the duration of the actuation, but the driver cannot actually see when the valve is fully opened or closed and will usually end up holding the button longer than needed. This dramatically shortens the life of the valve motor and creates play in the valve motor shaft by over-torquing the valve. Grantelli’s cutout system has the option of using a one-touch switch with ‘Smart Box Technology.’ Simply bump the switch in the open or closed position, and the cutout motor automatically takes care of the rest.
Simplified Installation and Pre-Wired Electronics
For the rest of the electronics side, GMS prewires the entire system for you using high-quality, fully insulated wires and terminals. After your single or dual cutouts are welded in, simply mount your switch somewhere on the dash; connect the extension wire to the cutout terminal and route it into the cabin; connect the other end to your switch (or wire the second cutout into the second open set of terminals on the first switch if using a dual system); and then find your power and ground source.
Premium Universal Electronic Exhaust Cutouts Built for Performance
Granatelli Motor Sports‘ line of electronic exhaust cutouts is above and beyond what you would expect from a universal system. J.R. and his team put a lot of effort into making sure that their products stand out from the competition in both quality and performance, and these cutouts are no exception.
