Granatelli Motor Sports Electronic Exhaust Cutout Kit 307540K - Stainless Steel Weld-In - 4.00"

Dominate the Road—4″ Dual Cutout Command

SKU: 307540K

Take control of your sound and flow with the Granatelli Dual 4.0″ Stainless Steel Electronic Exhaust Cutout Kit. With two massive 4″ valves, CNC-machined components, and polished stainless turndowns, you get instant access to raw power and authority—while enjoying quiet cruising when desired.

Electronic Exhaust Cutout Kit Key Features:

• Heavy-Duty Build: CNC-machined 6061 aluminum motor bodies paired with rugged stainless steel cutouts and shafts


• Smart-Chip One‑Touch Control: Flip the rocker once—motors auto-stop at full open/close to protect internal gears


• 360° Adjustable Turndowns: Polished 45° stainless exits rotate via V-band clamps for perfect alignment


• High-Torque Performance: DC gear‑reduction motors with heat-resistant carbon steel gears ensure full-cycle reliability


• Fully Sealed Durability: Internal and external components are sealed for weather resistance and long life


• Complete Weld‑In Kit: Includes dual cutouts, Y-pipes, switches, wiring, gaskets, clamps, hardware—ready to install

Specs Snapshot

• Cutout Diameter: 4.0″ (102 mm)


• Material: Stainless steel cutouts & turndowns; CNC 6061 aluminum motor bodies


• Exhaust Tip: Polished stainless, 45° angle, 360° adjustable


• Motor: High-torque DC with carbon steel gears and Smart-Chip auto-stop


• Fitment: Universal weld-in dual kit (Y-pipe included)


• Included: All hardware, gaskets, wiring harnesses, rocker switches

Built for Power, Designed for Control

Whether you're ripping down the quarter mile or cruising to a car show, this 4″ dual cutout delivers booming performance on demand and stealth on standby. Rugged, refined, and fully equipped—this is your exhaust’s next big upgrade.