1 20

Valvetronic Designs

Valvetronic BMW E46 M3 Valved Sport Exhaust

Valvetronic BMW E46 M3 Valved Sport Exhaust

$1,799.00 USD
$1,799.00 USD
Sale Sold out
MATERIAL

BMW E46 M3 Valved Section 3 Exhaust

Brushed T304 Stainless Steel or Grade 5 Titanium

Overview

The Valvetronic Designs Valved Section 3 brings modern exhaust control technology to the legendary BMW E46 M3. Designed to replace the heavy factory suitcase muffler, this upgrade delivers an unmatched S54 soundtrack with the ability to switch between aggressive and stock-like tones at will.

With the valves open, the E46 M3 comes alive—raw, responsive, and engaging throughout the rev range. Close the valves, and the sound reverts to factory-like levels for a stealthy, comfortable drive.

Why It Works

  • Direct Replacement: Connects to any section 2.

  • Dual Sound Modes: Raw, high-revving S54 tone (open) or stock-like refinement (closed).

  • Material Options: Choose brushed T304 stainless steel for durability or Ti 6Al-4V Grade 5 titanium for ultimate weight savings.

Sound & Control

  • Valves Open: Unleashes the iconic S54 scream with increased volume and sharper tone.

  • Valves Closed: Quiet, refined, and suitable for daily driving.

  • Rapid Valve Actuation: Instant open/close functionality for on-demand sound changes.


Construction & Quality

  • Material: Brushed T304 stainless steel or Grade 5 titanium.

  • Weight Savings: ~8 lb lighter (Stainless) / ~18 lb lighter (Titanium) than OEM.

  • Craftsmanship: Precision TIG welds and mandrel-bent tubing for strength and optimal flow.

  • Finish: Brushed stainless or raw/brushed titanium.

Fitment

  • 2001–2006 BMW E46 M3

Installation Notes

  • Designed to work best with the stock section 2.

  • May be adapted to other aftermarket section 2 systems, but fitment is not guaranteed and modifications may be required.

  • 100% reversible—return to stock at any time.

What’s Included

  • Valved section 3 exhaust assembly (Stainless or Titanium)

  • Rapid-actuating pneumatic valve

  • All necessary hardware and clamps

Specifications

  • Material: Brushed T304 stainless or Ti 6Al-4V Grade 5 titanium

  • Valves: pneumatic, rapid open/close

  • Weight Savings: ~8 lb (Stainless) / ~18 lb (Titanium) vs. OEM

  • Design: Mandrel-bent tubing for optimal flow; precision TIG-welded construction

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).