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Granatelli Motor Sports
Granatelli Dual 2.5" Electric Exhaust Cutout Kit, Stainless Steel Weld-In – 307525K
Granatelli Dual 2.5" Electric Exhaust Cutout Kit, Stainless Steel Weld-In – 307525K
SKU:307525K
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Granatelli Motor Sports 307525K Dual Electronic Exhaust Cutout Kit – 2.5" Weld‑In
SKU: 307525K
Push your performance limits with the Granatelli 307525K dual cutout kit—an authentic fusion of raw power and refined control. This premium system lets you shift from stealth to soundtrack with a single flip.
Key Features:
- Aviation‑Grade CNC 6061 Aluminum Body for lightweight strength and heat resistance.
- Smart‑Chip One‑Touch Motor Control ensures full open/close operation without holding down the switch.
- Dependable DC Gear Reduction Motor with high‑torque and high‑temperature carbon steel gears—guaranteed total operation every time.
- Stainless Steel Butterfly Plates & Shafts built to endure extreme exhaust heat.
- 360° Rotatable V‑band Clamp & Polished 45° Turndowns for perfect alignment and exhaust flow tuning.
- Weld‑In Installation (2.50″ tubing) delivers a clean, factory-style installation.
- Complete Kit: includes hardware, gaskets, wiring harnesses, and dual turndowns—everything you need.
Specifications:
| Attribute | Specification |
|---|---|
| Tubing Diameter | 2.50″ (63 mm) |
| Cutout Style | Electric, weld‑in |
| Flange Material | CNC 6061 aluminum |
| Finish | Natural (polished aluminum & stainless steel) |
| Quantity | Dual kit |
| Components Included | Cutouts, turndowns, V‑bands, hardware, gaskets, harnesses |
*This weld‑in kit features tubing with a 2.50″ inside diameter, polished stainless steel turndowns with 45° discharge, and all necessary hardware—delivered ready to install.
Whether you crave subtle cruising or aggressive sound, the Granatelli 307525K gives you full command. Engineered with top-tier materials and Smart‑Chip intelligence, it delivers power, precision, and presence—on demand.
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 307525 kit. Can't weld? The 302525K slip-fit version installs with clamps.
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?
Weld-in kits need welding equipment or a muffler shop. Prefer to bolt it on? The 302525K is a slip-fit version.
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.
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.
5.0 / 5.0 · 4 total reviews
