QTP Exhaust Cut-Out

QTP Exhaust Cut-Outs: Open-Exhaust Performance on Demand

QTP (Quick Time Performance) has built a dedicated following among performance enthusiasts for one core reason: their exhaust cut-out systems let drivers switch between a quiet, street-legal exhaust note and full open-pipe thunder at the push of a button. Rather than committing to a permanently loud exhaust, QTP's approach gives you the best of both worlds — civilized daily driving and maximum sound and flow when you want it.

How QTP Exhaust Cut-Outs Work

QTP exhaust cut-outs are electrically actuated valves that mount in-line with your existing exhaust system, typically ahead of the muffler. When opened, exhaust gases bypass the muffler entirely and exit through a dedicated outlet, dramatically reducing backpressure and unleashing the full, unfiltered roar of your engine. When closed, the exhaust routes through the stock or aftermarket muffler as normal. The transition takes just seconds, controlled from inside the cabin via an included switch kit or optional remote.

Key Features of QTP's Exhaust Cut-Out Line

• Electric Actuator Design: QTP's cut-outs use a robust electric motor to open and close the valve plate, eliminating the vacuum lines and complexity found in older manual or vacuum-operated designs.
• Bolt-On Installation: QTP kits are engineered to fit into standard exhaust pipe diameters (typically 2.5" and 3" options), with weld-in or clamp-in mounting configurations that keep installation straightforward for home builders and shop technicians alike.
• Full-Open Valve Plate: QTP's valve design opens to a near-unrestricted bore, minimizing flow restriction even when the cut-out is fully open — an important detail that separates performance-grade cut-outs from budget alternatives.
• Included Switch & Wiring: Complete kits ship with an in-cab toggle or rocker switch and pre-terminated wiring, so there's no hunting for additional components to complete the install.
• Durable Construction: Cast and machined housings are built to withstand the heat and vibration demands of performance exhaust applications, making QTP cut-outs a dependable long-term modification.

Who Are QTP Exhaust Cut-Outs For?

QTP's exhaust cut-out systems are popular with a wide range of builds: muscle cars and pony cars that need to pass a noise ordinance at the track's exit but want full sound on the strip, trucks and SUVs whose owners want to amplify a V8 or diesel rumble without permanently altering the exhaust, and weekend autocross or bracket racers looking for a simple, reversible power-adder that also improves exhaust scavenging at higher RPM.

With 13 products in QTP's exhaust cut-out lineup, there are options to cover most pipe diameters and vehicle applications. Whether you're outfitting a single-exit system or a dual exhaust setup, QTP offers individual cut-outs and complete dual-kit packages to match your build.

Shop QTP Exhaust Cut-Outs

Browse the full selection of QTP exhaust cut-out products to find the right diameter, mounting style, and kit configuration for your vehicle. For the complete range of QTP performance products beyond exhaust cut-outs, visit the QTP brand page. To compare cut-out options across all manufacturers, explore the exhaust cut-out category page.