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Granatelli Motor Sports
Granatelli Dual 4" Electric Exhaust Cutout Kit, Stainless Steel Slip-Fit – 302540K
Granatelli Dual 4" Electric Exhaust Cutout Kit, Stainless Steel Slip-Fit – 302540K
SKU:302540K
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Granatelli Motor Sports 4.0" Dual Electronic Exhaust Cutout Kit
SKU: 302540K
Elevate your vehicle's performance and sound with Granatelli Motor Sports' 4.0" Dual Electronic Exhaust Cutout Kit. Designed for enthusiasts seeking both power and control, this kit offers seamless integration and superior durability.
4 Inch Dual Electronic Exhaust Cutout Kit Key Features:
- Dual 4.0" Slip-Fit Cutouts: Crafted from polished stainless steel for a sleek look and robust performance.
- CNC-Machined 6061 Aluminum Motor Bodies: Precision engineered for long-lasting durability.
- Smart-Chip Controlled Motors: "One-touch" rocker switch operation for effortless control and reduced wear.
- High-Torque DC Gear Reduction Motors: Built with high-temperature carbon steel gears for reliable operation.
- 360° Adjustable V-Band Turndowns: Polished stainless steel turndowns with a 45° slanted discharge angle for customizable exhaust routing.
- Complete Installation Kit: Includes all hardware, gaskets, wiring harnesses, and polished turndowns.
Specifications
| Specification | Details |
|---|---|
| Tubing Diameter | 4.00 inches (102 mm) |
| Material | Stainless Steel (cutouts & turndowns), CNC 6061 Aluminum (motor bodies) |
| Installation Type | Slip-Fit with Band Clamps |
| Exhaust Cutout Style | Electric |
| Flange Material | Aluminum |
| Motor Type | High-Torque DC Gear Reduction with carbon steel gears |
| Control Method | Smart-Chip "One-touch" rocker switch |
| Turndown Discharge Angle | 45° slanted, adjustable 360° V-band |
Whether you're aiming for a stealthy cruise or a powerful roar, this kit provides the flexibility to switch between modes effortlessly. Upgrade your exhaust system with Granatelli Motor Sports' 4.0" Dual Electronic Exhaust Cutout Kit and experience the perfect blend of performance and convenience.
Sizing & Fitment
Measure the outside diameter of your exhaust pipe at the mounting point. If it measures 4", this kit is the right match. This dual kit is for true dual exhaust systems, one cutout per side. Single exhaust? Choose the single 302540 kit. Want a permanent, leak-free install? See the 307540K weld-in version.
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?
Yes. This kit clamps onto the pipe, so most installs need only basic hand tools and a way to cut the pipe.
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 4 Inch 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.
