Granatelli Dual 3" Vacuum/Pressure-Controlled Exhaust Cutout Kit, Stainless Steel Slip-Fit – 309530K

Granatelli Dual 3 Inch Electronic Exhaust Cutout System

SKU: 309530K

Take Control—Silence or Roar, On Demand

Instantly switch your exhaust tone and flow with the Granatelli Dual 3.0″ vacuum/pressure‑controlled electronic cutout. This dual stainless steel system gives you aggressive sound when you want it—or stealth mode when you don’t—with a sleek slip-fit design and Smart-Chip motor.

Why It Stands Out

• Rugged Construction: CNC-machined aluminum motor housings with stainless butterfly plates and shafts—built to handle extreme heat and abuse.
• Smart One-Touch Control: Smart-Chip rocker switch with auto-stop eliminates gear strain from holding the button.
• 360° Exit Flexibility: Polished 45° stainless turndowns mounted on V-band clamps let you aim sound exactly where you want it.
• Solid Motor Performance: High-torque DC gear-reduction motor with carbon steel gears guarantees reliable full-open and full-close cycles.
• Complete Kit: Includes everything you need for install—cutouts, Y-pipes, wiring harnesses, switches, gaskets, band clamps, and hardware.

Quick Specs

• Cutout Diameter: 3.00″ (76 mm)
• Body: CNC 6061 aluminum
• Internals: Stainless steel butterfly system with carbon-steel gears
• Exhaust Exit: Polished stainless turndown, 45°, with 360° V-band adjustability
• Control: Vacuum/pressure-triggered, Smart-Chip electric motor
• Installation: Slip-fit with band clamp—no welding required

Roar Freely—Cruise Silently

Perfect for muscle cars, turbo builds, or daily drivers needing toggled tone control. Rugged, smart, and built ready to roll—this kit offers true exhaust freedom without compromise.

Key Features & Benefits

• Application-focused Granatelli Motor Sports design
• Built for dependable performance and service
• Designed for enthusiasts, professional installers, and performance builds

Fitment & Installation

Confirm the part number, vehicle or engine application, dimensions, and supporting components before installation. Modified vehicles may require additional clearance, fabrication, calibration, or related hardware depending on the combination.

Frequently Asked Questions

What does an electronic exhaust cutout do?
It gives the driver control over the exhaust path, allowing the system to be opened or closed as the application requires.

Will this work on a modified vehicle?
Compatibility depends on the complete vehicle combination. Confirm the listed application and supporting components before installation.

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.