Granatelli Motor Sports
Granatelli Dual 3" Oval Electric Exhaust Cutout Kit, Stainless Steel Weld-In – 313530D
Granatelli Dual 3" Oval Electric Exhaust Cutout Kit, Stainless Steel Weld-In – 313530D
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Granatelli 3" Dual Oval Electronic Stainless Steel Weld-In Exhaust Cutout Kit
Get complete control over your exhaust sound and flow with the Granatelli 313530D Dual 3-Inch Oval Electronic Exhaust Cutout Kit. Designed for custom 3-inch exhaust systems, this weld-in kit combines electronic one-touch operation with durable stainless-steel components and precision-machined aluminum housings.
Control Your Exhaust With One Touch
The 313530D lets you change your exhaust character at the press of a button. The integrated Smart-Chip electronics automatically operate the valves through their complete open or closed travel, eliminating the need to continuously hold the switch. Open the cutouts when you want maximum exhaust flow and a more aggressive sound, then close them for a more controlled exhaust configuration.
Performance Features
Dual 3-Inch Oval Cutouts
Designed for dual 3-inch exhaust systems, providing electronic control over the exhaust path for a customizable exhaust experience.
Smart-Chip One-Touch Operation
The integrated microprocessor automatically controls full valve travel with a single press of the rocker switch.
6061-T6 Aluminum Housing
Precision CNC-machined aircraft-grade aluminum housings provide a durable and lightweight foundation for the electronic cutout system.
304 Stainless Steel Internals
304 stainless-steel butterfly valves and shafts are built to withstand demanding exhaust-system temperatures and conditions.
Weld-In Design For Custom Exhaust Systems
The Granatelli 313530D is designed for weld-in installation on compatible 3-inch exhaust systems. The complete kit includes the components needed for a clean installation, making it a practical choice for custom exhaust builds and performance applications.
Complete Kit Includes
Built For Performance Applications
Product Specifications
More Flow. More Sound. More Control.
Add electronic control to your 3-inch exhaust system with the Granatelli 313530D Dual Oval Electronic Exhaust Cutout Kit.
Sizing & Fitment
This is an oval cutout for 3" oval exhaust tubing. Confirm your pipe is oval, not round, and check the outside dimensions at the mounting point before ordering. Running round pipe? See the 307530K round version. This dual kit is for true dual exhaust systems, one cutout per side. Single exhaust? Choose the single 313530 kit.
Where to Mount It
Mount the cutout at least 18 to 24 inches after the catalytic converters, and away from any O2 sensor. Aim the turndown toward the rocker panel, away from fuel and brake lines. For the best sound, mount it after the X-pipe or H-pipe.
Legal Note
Many states, including California, prohibit exhaust cutouts on vehicles driven on public roads. Keep the cutout closed on the street and open it only at sanctioned off-highway events. Never install a cutout upstream of a catalytic converter.
Frequently Asked Questions
Do I have to hold the switch?
No. The Smart-Chip one-touch rocker completes the valve's travel with one tap.
Can I install it myself?
Weld-in kits need welding equipment or a muffler shop.
What's the warranty?
90 days, with optional 1-, 2- or 3-year extended coverage available at checkout.
Will it add horsepower?
Opening the cutout reduces backpressure. Gains depend on your engine, headers and tune.
New to cutouts? Read our 3 Inch Electric Exhaust Cutout Guide for choosing the right size and type, mounting and state laws.
Why Choose Granatelli Motor Sports?
Granatelli Motor Sports develops performance components for real-world street, street/strip, race, and custom applications, with an emphasis on practical performance, dependable construction, and integration into serious automotive builds.
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