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Granatelli Motor Sports
Granatelli Motor Sports Vacuum/ Pressure Controlled Electronic Exhaust Cutout Systems - Stainless Steel Weld-In 309630
Granatelli Motor Sports Vacuum/ Pressure Controlled Electronic Exhaust Cutout Systems - Stainless Steel Weld-In 309630
SKU:309630
In Stock—More than 10 available
Racing Use Only. Not Legal for Road Use.

Granatelli Motor Sports Vacuum/Pressure Controlled Electronic Exhaust Cutout System – 3.0″ Stainless Steel Weld-In
SKU: 309630
Take your exhaust system to the next level with the Granatelli 309630 – a precision-engineered, vacuum/pressure-controlled electronic cutout that blends performance, convenience, and durability.
Vacuum/Pressure Electronic Exhaust Cutout System Key Features:
- Premium Build Quality: CNC-machined 6061 aircraft-grade aluminum body paired with polished 304 stainless steel turndowns and butterfly plates for maximum strength and corrosion resistance.
- Reliable Smart-Chip Motor: High-torque DC gear reduction motor with high-temp carbon steel gears ensures dependable full open/close operation every time.
- Hassle-Free One-Touch Control: Smart-Chip provides quick, one-flip activation—no need to hold the switch or worry about gear wear.
- 360° Adjustable V-Band Clamp: Weld-in system features a fully rotatable turndown for flexible, precise fitment.
- Vacuum/Pressure Activation: Automatically actuates based on engine vacuum or boost for smooth transitions between open and closed modes.
- Complete Installation Kit: Includes all mounting hardware, gaskets, and proper wiring harnesses—everything needed for a seamless install.
Specifications:
| Attribute | Specification |
|---|---|
| Cutout Size | 3.0 inches (76mm) inside diameter |
| Body Material | CNC 6061 aluminum |
| Turndown Material | Polished 304 stainless steel, 45° angle |
| Motor | High-torque DC gear reduction motor with Smart-Chip |
| Gear Type | High-temperature carbon steel |
| Clamp Type | Weld-in V-band, 360° adjustable |
| Actuation Method | Vacuum/pressure controlled |
| Included Components | Cutout, turndown, wiring harness, gaskets, hardware |
| Quantity | Sold as a complete kit |
| Part Number | 309630 |
*All necessary hardware, gaskets, and wiring harnesses included. Tubing measures 3.0" (76mm) inside diameter. Polished stainless steel turndown includes 45° slanted discharge angle for optimal flow and appearance.
With the Granatelli 309630, you gain full command over your exhaust tone—refined and quiet when you want it, aggressive and free-flowing when you need it. Its vacuum/pressure-actuated design means it works seamlessly with your engine’s behavior, delivering instant results without any extra input. Built from top-tier materials and designed for serious performance, this kit is the ultimate upgrade for drivers who demand power, precision, and presence.
Details
- 309630
- 309630
- 0.00E+00
- Granatelli Motor Sports
- New

