Four Rings Society
OEM B8.5 s4 Trunk- CARBON FIBER (2013-2016)
OEM B8.5 s4 Trunk- CARBON FIBER (2013-2016)
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Compatibility:
Direct bolt-on for Audi B8.5 S4 sedans (2013–2016) with precise OEM-spec fitment.
Material:
Premium 3×3K twill carbon fiber, hand-laid and vacuum-bagged for maximum strength, rigidity, and visual depth. Finished in a high-gloss, UV-resistant clear coat to prevent yellowing and fading unless otherwise requested.
Clean, subtle OEM-style mold , compare with: Trunk w/ Lip
Weight Reduction:
Approx. 11lb (≈ 5.3 kg) vs the OEM 36.6 lb (≈ 16.6 kg) steel trunk, OR 4RS Carbon Duckbill Trunk Approximately 13 LB (≈ 5.9 kg).
Torsion Spring Note:
Factory torsion springs must be removed. They are calibrated for the original 36–40 lb steel trunk, and their stored torque is excessive for a ~13 lb carbon trunk lid.
Hardware:
Hardware may not be included. Requires M8 × 38mm, 1.25 pitch automotive studs and six matching nuts (or reuse your OEM hardware if compatible).
Product photo based on render, fitment is identical to OEM 2013-16 s4 trunk (differs from a4 shape, should still fit)
⚠️ This product can expose you to chemicals including carbon fiber particulate and epoxy resin, known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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