Borla Exhaust Control Valve Kit

Borla Exhaust Control Valve Kits: Add Dual Mode Sound to Your Borla System

When you invest in a Borla performance exhaust, you're buying into a system designed to deliver the most precisely tuned sound and flow possible for your vehicle. But not every Borla axle-back ships with GM's NPP (dual mode exhaust) valves pre-installed — and that's exactly where the Borla Exhaust Control Valve Kit steps in.

What Is an Exhaust Control Valve Kit? Modern performance vehicles increasingly rely on electronically actuated exhaust valves to give drivers on-the-fly control over exhaust volume, tone, and even fuel efficiency. Exhaust control valve kits allow owners of compatible aftermarket systems to retrofit this dual mode functionality — toggling between a quieter, more subdued note for daily driving and a fully open, aggressive exhaust character when the moment calls for it.

Borla's answer to this need is purpose-engineered, not generic. The Borla Exhaust Control Valve Kit (part #60605) is specifically designed for the Chevrolet Camaro SS and LT1 6.2L V8 (2016–2024) running a dual split rear exit setup. These 2.75-inch diameter tail pipes include the NPP valves and are intended to add the dual mode option to Borla systems that did not originally ship with the necessary valves — including systems 11920, 11921, 11926, 11927, 140687, and 140688.

A key installation detail worth knowing: these tail pipes replace the outside tail pipe on each muffler, meaning the existing outside tail pipe on the axle-back assembly must be cut off prior to installation. The kit does not include wiring, so it is intended for vehicles already equipped with the NPP control hardware from the factory. This is not a universal add-on — it is a precision solution for a precise fitment scenario.

Borla Engineering Standards Behind the Kit

Borla Performance Industries has been the standard-bearer for stainless steel performance exhaust since its founding in 1978, beginning with exhaust fabrication for Rolls-Royce and Ferrari concours vehicles. Today, their R&D is conducted at a state-of-the-art facility in Oxnard, California, with manufacturing at a 100-acre complex in Johnson City, Tennessee.

True to Borla's build standards, the exhaust control valve kit is constructed from polished T-304 stainless steel — the same aerospace-grade alloy used throughout their exhaust line — delivering corrosion resistance that lasts. The 4-inch round polished stainless steel tips maintain the premium aesthetic expected from a Borla system. Borla backs all moving parts, including valves and actuators, with a 3-year warranty, while their exhaust systems themselves carry the legendary million-mile warranty.

• Designed specifically for Borla axle-back systems without factory-included NPP valves
• Enables NPP dual mode exhaust functionality — quiet cruising or wide-open performance sound
• 2.75-inch diameter tail pipes with polished T-304 stainless steel construction
• Features 4-inch round polished stainless steel tips
• Unnotched design for easier weld-on installation
• Compatible with select Camaro SS and LT1 6.2L V8 models (2016–2024)
• Valve and actuator coverage under Borla's 3-year warranty

For enthusiasts who already run a Borla axle-back and want to unlock the full expressive range of their exhaust system, this kit bridges the gap between a fixed-tone aftermarket setup and a genuinely driver-controlled sound experience — the Borla way.