• Nitron R3 dampers with external reservoirs, teal springs and mounting hardware; generic product illustration
  • Nitron adjustable top mount showing alignment slots and mounting studs; generic product illustration
  • Nitron R3 reservoir, spring seat and threaded damper-body detail; generic product illustration
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Nitron

Pit Garage Spec Nitron NTR R3 3-Way Coilover Kit — BMW E46 M3

Pit Garage Spec Nitron NTR R3 3-Way Coilover Kit — BMW E46 M3

Spring specification
Rear suspension layout
Hose Dry Break
$6,560.00 USD
$6,560.00 USD
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WARRANTY POLICY

Warranty & Inspection Policy

All products must be carefully inspected within seven (7) calendar days of delivery.

Any claim involving damage, defects, missing parts, or incorrect items must be submitted within this seven-day inspection period. Claims made more than seven days after delivery will not be eligible for warranty coverage, replacement, return, or refund.

Customers are responsible for inspecting the product and confirming that it is correct, complete, undamaged, and suitable for the intended vehicle before installation.

Products must not be installed if any damage, defect, fitment issue, or missing component is discovered. Please contact us before proceeding with installation.

Once a product has been installed on a vehicle, it is considered accepted by the customer and is no longer eligible for warranty coverage, return, replacement, or refund.

By purchasing and installing our products, the customer acknowledges and agrees to this Warranty & Inspection Policy.

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The Pit Garage Spec Nitron NTR R3 gives the BMW E46 M3 independent control of rebound, low-speed compression and high-speed compression. Built for road and track applications, it offers the adjustment range to develop your suspension setup around your tires, chassis and driving priorities.

Features

  • Three independent damping controls for detailed suspension setup.
  • Hose-connected remote reservoirs for additional thermal capacity.
  • Bi-Axis hose fittings for flexible reservoir routing.
  • Application-specific spring and damper specification.
  • Serviceable and rebuildable construction for long-term ownership.

Choose Your Configuration

Fast Road (FRS)
A starting point for predominantly road-driven cars with occasional track use.

Track Day (TDS)
A more track-focused option for drivers prioritising chassis control with an appropriate tire and suspension setup.

Rear layout
Divorced keeps the rear spring separate from the damper. Coilover places the spring around the rear damper. The selected layout must suit the car’s mounting arrangement and any required reinforcement.

Specifications

Specification Details
Application BMW E46 M3
Manufacturer part number NTCBM011R3
Damping Independent rebound, low-speed and high-speed compression
Reservoir arrangement Hose-connected remote reservoirs
Spring specification Fast Road or Track Day
Rear layout Coilover or Divorced

Hose Dry Break: Optional: +$548 per pair. Select above to add.

Installation & Ordering

Professional installation should include checking mounting condition, required reinforcement, reservoir routing, wheel clearance and suspension travel, followed by alignment and setup.

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Product FAQs

Do high- and low-speed compression refer to road speed?

No. They refer to damper shaft movement speed. A sharp suspension input can involve high shaft speed even at a low vehicle speed.

How should I approach the first damping adjustments?

Establish a suitable baseline, change one setting at a time and record the result on a repeatable route or session. Keep the tire and vehicle setup consistent while assessing changes.

Does choosing a true rear coilover affect the installation requirements?

It changes where the rear spring load is carried. Establish the mounting and reinforcement requirements for the selected layout before ordering.