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Valvetronic Designs

Valvetronic BMW i8 Valved Sport Exhaust System

Valvetronic BMW i8 Valved Sport Exhaust System

$3,499.00 USD
$3,999.00 USD $3,499.00 USD
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CONFIGURATION
Exhaust tips
Material


BMW i8 Valved Exhaust System

Unlock the Hidden Sound Potential of the Hybrid Supercar

Overview

From the factory, the BMW i8 offers stunning looks and impressive performance—but its exhaust note leaves much to be desired. At Valvetronic Designs, we knew there was incredible sound potential hidden beneath the hybrid bodywork. Our full exhaust system transforms the i8’s character, letting the three-cylinder turbocharged engine breathe and deliver a unique tone—somewhere between a rally-bred triple and a Porsche flat-six—that turns heads everywhere you go.

Sound & Control

  • Valves Open: Deep, aggressive tone with exciting shift pops and overrun crackles—bringing drama and emotion to every drive.

  • Valves Closed: Quiet and refined, perfect for Eco mode and everyday commuting.

  • Factory Valve Integration: Works seamlessly with the i8’s drive modes—Sport mode opens the valves, Eco mode keeps them closed.

Performance Engineering

  • Free-Flow Design: A 3.0-inch mandrel-bent construction from front to tip minimizes restriction and maximizes sound quality.

  • Weight Reduction & Flow Gains: Less restrictive than the factory setup for improved throttle response.

  • Precision TIG Welding: Ensures exceptional durability and a flawless finish.

  • 100% Reversible: Easily return to stock configuration at any time.

Fitment

  • 2014 – 2020 BMW i8

Features

  • Integrated valved cat-back system with free-flow front section

  • Fully mandrel-bent 3.0-inch T304 stainless steel construction

  • Works with factory exhaust valve controls and drive modes

  • Deep, aggressive exhaust tone with unique triple-cylinder character

  • Precision TIG welds for maximum strength

  • 100% reversible installation

View full details

ECU tuning is the process of adjusting the engine control unit's software to enhance vehicle performance, efficiency, or fuel economy.

It can, depending on the manufacturer. Many warranties do not cover modifications like ECU tuning.

Use the highest octane fuel recommended for your specific tune to ensure optimal performance and safety.

Yes, a properly tuned car can be used daily, as long as the tune is tailored for reliable, everyday driving.

CPC (Central Powertrain Controller) and TCU (Transmission Control Unit) manage your vehicle's powertrain and transmission systems, respectively.

Map switching allows you to change between different tuning settings (maps) for varying driving conditions without having to retune the ECU.

Yes, if done by a professional using proper tools, ECU tuning is generally safe for your vehicle.

ECU tuning works by modifying the software that controls engine parameters like fuel mixture, ignition timing, and boost pressure to optimize performance.

The process of installing a tune depends on the vehicle’s make and model. Some tunes are installed by connecting a tuning device to your car’s OBD-II port and uploading the tuned software, others may require ECU unlock.

Stage 1 is for vehicles with no modifications, stage 2 is for vehicles with bolt-on upgrades or downpipes installed.

We offer post-installation support, troubleshooting, and guidance on using your tuning software and hardware.

Choose tuning software that is compatible with your vehicle, has good reviews, and suits your performance goals (e.g., reliability vs. max power).