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Identified Issues- Wheel arch noise
- Lack of factory insulation
- Roof echo
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Work Performed- Full Body Soundproofing
- Wheel arches outside
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Results- Reduced noise levels from 87 dB to 74 dB
Photo Report of Completed Work
Stock insulation
Stock insulation in the Toyota Corolla ZR can be improved.
It primarily uses recycled textile material, which provides only minimal noise reduction.
It primarily uses recycled textile material, which provides only minimal noise reduction.
Floor Soundproofing
The floor pan and wheel arches are the primary sources of road noise.
We installed STP Gold as a vibration-damping layer to reduce metal resonance.
We installed STP Gold as a vibration-damping layer to reduce metal resonance.
Floor Soundproofing
On top of this, we applied STP Bromo to absorb mid- and high-frequency noise.
StP Gold Sound Deadening 4.5m²/2.3mm
StP Black-Gold Bulk Pack (Gold Line Range)
Designed to reduce rattles and road noise while improving overall audio performance, STP Black-Gold is a premium, flexible, self-adhesive vibration-damping material suitable for cars and SUVs.
Designed to reduce rattles and road noise while improving overall audio performance, STP Black-Gold is a premium, flexible, self-adhesive vibration-damping material suitable for cars and SUVs.
- Recommended Installation Areas:Doors
- Roof
- Firewall
- Wheel arches
- Boot
- Bonnet
- Plastic trims
Roof Soundproofing
The customer reported excessive cabin echo inside the vehicle.
To address this, we installed STP Gold to reduce metal resonance and rattling, followed by STP Accent for improved sound absorption and thermal insulation.
To address this, we installed STP Gold to reduce metal resonance and rattling, followed by STP Accent for improved sound absorption and thermal insulation.
Plastic Soundproofing
All plastic trim components were wrapped with soft STP Biplast 10 mm to eliminate contact points and absorb residual noise.
Doors Soundproofing
Vehicle doors in Toyota models are a common weak point for sound insulation.
They typically feature only a small vibration-damping patch and minimal factory foam padding.
They typically feature only a small vibration-damping patch and minimal factory foam padding.
Doors Soundproofing
To create a proper acoustic enclosure, we installed STP Gold on both the inner and outer door skins.
The plastic door trim panel was then covered with STP Biplast 15 mm (wave) to eliminate contact points and absorb residual noise.
The plastic door trim panel was then covered with STP Biplast 15 mm (wave) to eliminate contact points and absorb residual noise.
Products we used in this Project
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