Electronic Valve Controllers

Electronic Valve Controllers: quiet cruise or full volume, on a switch

An electronic valve controller lets you open or close a valve in your exhaust from inside the car, so you decide when it stays quiet and when it opens up. There are two jobs in this category. Some units are complete electric cutout kits: a plate valve welded or clamped into the pipe that dumps flow past the muffler when open. Others are sound controllers that drive the motorized valve already built into a manufacturer's exhaust. In both cases you get a switch, a servo or actuator, and the wiring to run it. Fit one when you want a cold-start-friendly, neighbor-friendly car that still gets loud when you want it.

What we stock

There are 26 electronic valve controllers in stock right now, from 5 brands: QTP (the bulk of the range at 17 products), Granatelli Motor Sports, Remus, AWE Tuning, and Akrapovic. Prices run from $42 to $907, current for what's in stock and not a locked-in quote. That spread reflects two different kinds of product. At the top, vehicle-specific sound controllers like the Remus Civic Type-R FK8 controller, the Remus Mini Cooper S F55 controller, and the Akrapovic Audi RS3 control kit. In the middle are universal electric cutout kits like the QTP dual 2.5in cutout kit, the QTP dual 3in cutout kit, and the Granatelli 2.5in stainless dual cutout.

How to choose

Start with what you're controlling. If you run a factory or aftermarket exhaust that already has a valve, a matched sound controller such as the Remus or Akrapovic units plugs into that vehicle's system - these are vehicle-specific, so buy for your exact car. Of the products with listed fitment data, coverage names Honda Civic, Audi RS3, and Mini Cooper S, across model years roughly 2014 to 2026. That is a small slice: only 3 of the 26 products carry fitment data, so most of the range is universal hardware.

If your exhaust has no valve, you want an electric cutout kit like the QTP or Granatelli units. Match the valve size to your pipe diameter - 2.5in kits for 2.5in pipe, 3in for 3in - and a dual kit covers a dual-pipe setup. These need welding or clamping into the pipe and a switched power source, so budget install time or a shop.

What else you need

A cutout gets welded into piping, so pair it with the right exhaust pipes and exhaust flanges. If you're building the whole system, look at cat-back exhaust, axle-back systems, and mufflers, then browse the full exhaust section for headers and tips.

Fitment and ordering

For vehicle-specific controllers, confirm your year and trim before you buy - call fitment help at 813-535-5801 or reach us through contact us. All orders ship with free shipping, and Affirm and Katapult financing is available on financing.

Electronic Valve Controllers: quiet cruise or full volume, on a switch

An electronic valve controller lets you open or close a valve in your exhaust from inside the car, so you decide when it stays quiet and when it opens up. There are two jobs in this category. Some units are complete electric cutout kits: a plate valve welded or clamped into the pipe that dumps flow past the muffler when open. Others are sound controllers that drive the motorized valve already built into a manufacturer's exhaust. In both cases you get a switch, a servo or actuator, and the wiring to run it. Fit one when you want a cold-start-friendly, neighbor-friendly car that still gets loud when you want it.

What we stock

There are 26 electronic valve controllers in stock right now, from 5 brands: QTP (the bulk of the range at 17 products), Granatelli Motor Sports, Remus, AWE Tuning, and Akrapovic. Prices run from $42 to $907, current for what's in stock and not a locked-in quote. That spread reflects two different kinds of product. At the top, vehicle-specific sound controllers like the Remus Civic Type-R FK8 controller, the Remus Mini Cooper S F55 controller, and the Akrapovic Audi RS3 control kit. In the middle are universal electric cutout kits like the QTP dual 2.5in cutout kit, the QTP dual 3in cutout kit, and the Granatelli 2.5in stainless dual cutout.

How to choose

Start with what you're controlling. If you run a factory or aftermarket exhaust that already has a valve, a matched sound controller such as the Remus or Akrapovic units plugs into that vehicle's system - these are vehicle-specific, so buy for your exact car. Of the products with listed fitment data, coverage names Honda Civic, Audi RS3, and Mini Cooper S, across model years roughly 2014 to 2026. That is a small slice: only 3 of the 26 products carry fitment data, so most of the range is universal hardware.

If your exhaust has no valve, you want an electric cutout kit like the QTP or Granatelli units. Match the valve size to your pipe diameter - 2.5in kits for 2.5in pipe, 3in for 3in - and a dual kit covers a dual-pipe setup. These need welding or clamping into the pipe and a switched power source, so budget install time or a shop.

What else you need

A cutout gets welded into piping, so pair it with the right exhaust pipes and exhaust flanges. If you're building the whole system, look at cat-back exhaust, axle-back systems, and mufflers, then browse the full exhaust section for headers and tips.

Fitment and ordering

For vehicle-specific controllers, confirm your year and trim before you buy - call fitment help at 813-535-5801 or reach us through contact us. All orders ship with free shipping, and Affirm and Katapult financing is available on financing.