Armytrix McLaren MP4-12C (2011-2014) valvetronic exhaust system
waken the true voice of your McLaren MP4-12C with the ARMYTRIX Valvetronic Exhaust System, engineered specifically for the 2011–2014 3.8L Twin-Turbocharged V8 supercar. Whether you're carving apexes or cruising city streets, this system gives you complete control over your exhaust tone—via wireless remote or smartphone app connected through the OBDII port.
Precision-built using dual 3” stainless steel main pipes and finished with dual high-performance tips, the ARMYTRIX system unleashes a deeper, sharper exhaust note while improving response and turbo performance—all without triggering unnecessary CEL warnings thanks to integrated fault-code suppression.
Fitment:
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Model: McLaren MP4-12C
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Years: 2011–2014
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Engine: 3.8L Twin-Turbocharged V8
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Drive Orientation: Left-Hand Drive & Right-Hand Drive Compatible
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Control Module: ARMYTRIX OBDII Required
Key Features:
Valvetronic Control via OBDII (Remote + App):
Control the sound of your McLaren at the press of a button. Switch between stealth and performance modes with the included remote or ARMYTRIX mobile app—no cutting or wiring into the cabin required.
Dual 3” Mandrel-Bent Stainless Steel Main Pipes:
Free-flowing 3-inch pipes reduce backpressure, enhance turbo response, and deliver a louder, fuller sound signature across all RPMs.
Dual Exhaust Tips – Sleek, High-Performance Look:
Purpose-built dual tips complement the MP4-12C’s rear profile with a clean and aggressive aesthetic.
Integrated Fault Code Suppression System:
Exclusive Armytrix technology clears fault codes related to the catalytic converter and OPF, reducing the likelihood of triggering Check Engine Lights when upgrading from stock.
System Compatibility & Notes:
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Fits Both LHD & RHD MP4-12C Models
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Direct Bolt-On Installation – No welding or permanent mods required
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Plug-n-Play OBDII Module – Reduces install time by up to 30%
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Optimized for full system integration and enhanced sound output
Valvetronic Sound Modes (Remote + App Controlled):
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Quiet Mode (Valves Closed): Smooth, controlled tone for comfort driving
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Race Mode (Valves Open): Roaring, high-performance sound with enhanced turbo acoustics
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Auto Mode: App-controlled dynamic valve behavior based on driving input
What’s Included:
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ARMYTRIX Valvetronic Exhaust System (Dual 3” Main Pipes)
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Dual High-Performance Exhaust Tips (Multiple Finish Options Available)
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Wireless Remote Controller
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Plug-n-Play OBDII Control Module
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All Required Mounting Hardware
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Step-by-Step Digital Installation Manual
Important Notes:
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ARMYTRIX OBDII Control Module is required for full valve functionality
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System fits both LHD and RHD MP4-12C variants
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Confirm compatibility with existing hardware before ordering
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Professional installation recommended
Precision Sound. Intelligent Control. Unmatched Presence.
Elevate your McLaren MP4-12C with the ARMYTRIX Valvetronic Exhaust System—crafted to deliver supercar sound, performance, and tech-driven control on demand.
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PLEASE BE AWARE: Sports cats can NOT legally be installed on a vehicle for use on a public road that was manufactured after 1st March 2001 unless type ECE 103R approved - this can be identified in either the product description and/or in the Technical Information section listed. If you have any doubt on this approval, please contact us immediately for confirmation. Fitting a De-Cat/Cat Bypass, DPF delete/bypass or GPF delete/bypass to a vehicle that is to be used on UK roads will cause the vehicle to fail the MOT emissions test, therefore rendering it unroadworthy and illegal to be used on the road. Therefore, any such products are strictly sold as off-road or motorsport use only and NOT for road use. The vehicle should be transported from place to place via a trailer, flatbed or other recovery means.
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Phone: 01454 800 117
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In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your vehicle now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.
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What Our Customers Are Saying
Mark W.
“Thanks to James and Marcus at Avon Tuning for arranging and fitting a Quicksilver exhaust to my new Defender V8. Everything went like clockwork and it sounds awesome”
Paris C.
"Would highly recommend Avon Tuning. They're extremely knowledgeable, outstanding customer service - we even had a lovely courtesy car for the few hours they had ours. You're in good hands with Avon Tuning!"
Richard N.
"I’d give 6 stars if they’d let me! Avon Tuning did the most fantastic job. I arranged everything with James at the beginning and he was so helpful, guiding me to the correct exhaust system (Miltek) and a Stage 1 Remap"
Peter B.
"Amazing service from James and the team at Avon Tuning.Fitted a new exhaust system on my Aston Martin Vantage, not only does it sound and look great but it puts smiles per miles for me."
