Granatelli Dual 2.5" Electric Exhaust Cutout Kit, Stainless Steel Slip-Fit – 302525K

Granatelli Dual 2.5 Inch Electronic Exhaust Cutout Kit

SKU: 302525K

Dominate the Sound—Command the Night

You don’t just drive—you make a statement. The Granatelli Dual 2.5″ Electronic Exhaust Cutout Kit gives you instant access to full exhaust tone and flow control. One moment you’re under the radar; the next, you’re announcing your presence. Slip it on, flip the switch, and choose your roar.

Why the 302525K Is a Must-Have:

• Race‑Grade Durability
  • CNC-machined 6061 aircraft‑grade aluminum body
  • Stainless-steel butterfly plates & shafts
  • High-temp carbon‑steel drive gears
  • Fully sealed internals for dust & moisture resistance
• Smart One‑Touch Operation
  • Rocker switch with built-in Smart‑Chip technology
  • Automatically stops at full open/close—no stress on components
• Customizable Fit & Finish
  • Dual 45° polished stainless-steel turndowns for style and sound
  • 360°-adjustable V-band clamps for perfect alignment
• Full-Torque Assurance
  • High-torque DC gear-reduction motors ensure smooth full-cycle operation
• Complete Kit for DIY or Pro Install
  • Includes two motors, rocker switches, wiring harnesses, Y-pipes, gaskets, clamps, and mounting hardware

Key Specs at a Glance:

• Dual electric cutouts with slip-fit clamp-on design
• Inlet Diameter: 2.5″ (63 mm)
• Body: CNC-machined 6061 aluminum
• Internals: Stainless steel and high-temp carbon steel
• Finish: Natural aluminum with polished 45° turndowns
• Motor Housing: Fully sealed and weather-resistant
• Kit Includes: All hardware, switches, wiring, clamps, and gaskets

Set the Tone—On Your Terms

Whether it's track day, canyon runs, or roaring into a meet, this kit elevates your driving experience. It’s not just a mod—it’s a performance statement. Built tough, engineered smart, and fully equipped—this is the dual-cutout system serious enthusiasts demand. Ready to unleash?

Sizing & Fitment

Measure the outside diameter of your exhaust pipe at the mounting point. If it measures 2.5", this kit is the right match. This dual kit is for true dual exhaust systems, one cutout per side. Single exhaust? Choose the single 302525 kit. Want a permanent, leak-free install? See the 307525K 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 2.5 Inch Exhaust Cutout Guide for choosing the right size and type, mounting and state laws.