QTP 3.5in Bolt-On QTEC Electric Cutout Valve - Single - QTEC35

The QTP 3.5in Bolt-On QTEC Electric Cutout Valve - Single (QTEC35) is an electrically actuated exhaust cutout valve built to bolt directly onto 3.5-inch exhaust piping. Instead of running a fixed muffler or cutout position, this QTP electric cutout lets you switch between a quieter, restricted exhaust path for daily driving and a wide-open, unrestricted path for track days or dyno pulls with the flip of a switch. It's a straightforward way to add on-demand sound and flow control to any 3.5-inch exhaust setup without cutting or welding a full valve assembly into place.

Key Features & Benefits

• Electric actuation - Open or close the exhaust path electronically instead of manually, giving you convenient in-cabin control over exhaust sound and backpressure.
• Bolt-on 3.5in design - Sized to bolt onto existing 3.5-inch exhaust piping, simplifying installation compared to a weld-in cutout.
• Single valve configuration - Ideal for single-exhaust setups or applications where only one side of a dual exhaust needs a cutout valve.
• Driving flexibility - Run quieter and more restricted for street driving, then open the valve for maximum flow when you want it.
• Built by QTP - QTP is a long-established name in exhaust cutouts, valves, and exhaust components for performance applications.

Specifications

• Brand: QTP
• Part Number: QTEC35
• SKU: QTPQTEC35
• Type: Single electric cutout valve
• Pipe Size: 3.5in bolt-on
• Actuation: Electric

Fitment

This QTEC35 cutout valve is a universal, bolt-on component sized for 3.5-inch exhaust piping. It is not tied to a specific year, make, or model - it's designed to work with any exhaust system already running 3.5-inch diameter tubing where a single electric cutout is needed. Because it bolts on rather than requiring a weld-in flange, it's a common choice for shops and DIY installers upgrading an existing 3.5in system to include an electric cutout valve.

Why Buy from ThreePiece.us

Our team can help confirm that the QTP QTEC35 is the right size and configuration for your exhaust setup before you order. Every order from ThreePiece.us ships free, and you can split the cost of your exhaust cutout valve into manageable payments with Affirm financing at checkout - making it easier to upgrade your exhaust system on your schedule.

Frequently Asked Questions

Does the QTEC35 fit my specific vehicle?
Since this is a universal bolt-on cutout sized for 3.5-inch exhaust piping, it will fit any application already running 3.5in exhaust tubing, regardless of make or model.

Is this a weld-in or bolt-on cutout valve?
The QTEC35 is a bolt-on design, so it installs onto your existing 3.5-inch exhaust piping without requiring the valve itself to be welded in.

Is this a single or dual cutout valve?
This listing is for the single QTEC35 valve, sized for one 3.5in exhaust path. It's not a dual-valve kit.

Does the electric cutout need to be wired into the vehicle?
Yes - as an electrically actuated valve, the QTEC35 needs to be connected to a vehicle electrical source to open and close the cutout.