Granatelli Dual 2.25" Electric Exhaust Cutout Kit, Stainless Steel Slip-Fit – 302522D

Granatelli Dual Electronic Exhaust Cutout Kit

SKU: 302522D

Dominate Two Tones—Unleash or Stay Undercover

Slash from stealth mode to thunderous roar at the push of a button. With a dual 2.25″ setup, this kit delivers unmatched control over your ride's sound and flow—perfect for daily drives, street meets, or track use.

Why the 302522D Reigns Supreme

• Rugged, Race-Grade Build: CNC-machined 6061 aircraft-grade aluminum body resists heat and wear. Stainless butterfly plates and carbon-steel drive gears built to last.
• Smart, One-Touch Operation: No more holding the switch—Smart-Chip rocker lets you tap and go. Auto-stop protects internal gears from overstraining.
• Stylish & Adjustable Fit: Polished stainless turndowns with a 45° slanted tip. V-band clamps rotate 360° for perfect fitment and flow direction.
• Full-Cycle Power: High-torque DC gear-reduction motors ensure solid open/close every time, backed by high-temp carbon-steel gears.
• Ready-to-Install Kit: Dual clamp-on units, wiring harnesses, switches, gaskets, band clamps, and hardware included—everything you need for a clean install.

Specs at a Glance

• Cutout Diameter: 2.25″ (57 mm)
• Body: CNC 6061 aluminum
• Internals: Stainless steel plates & shafts, carbon-steel gears
• Turndowns: Polished stainless with 45° slanted tips
• Motors: High-torque DC gear-reduction with Smart-Chip auto-stop
• Installation: Slip-fit, clamp-on dual kit with full hardware

Unleash on Command—Stay Controlled

Whether cruising undercover or laying down raw sound, this kit offers total performance control. Strong, sleek, smart—this is the must-have exhaust mod for enthusiasts who want it all.

Sizing & Fitment

Measure the outside diameter of your exhaust pipe at the mounting point. If it measures 2.25", this kit is the right match. This dual kit is for true dual exhaust systems, one cutout per side. Single exhaust? Choose the single 302522 kit. Want a permanent, leak-free install? See the 307522D 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 2.25 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.