SIMONS Silencer Grandonett - 89mm - LEISE
Length (body): 250mm / Diameter: 140mm around / Connections: 89mm / Performance information: up to 900HP
€120.00
Content:
1 Stück
Available in 1 day, delivery time 5-8 Days
Product number:
WB-90013
Manufacturer:
Simons
Manufacturernumber:
2903304500
EAN:
4250815820072
"SIMONS Silencer Grandonett - 89mm - LEISE"
SIMONS Universal Stainless Steel Muffler – Compact, Quiet & Built for High Performance
This round SIMONS universal muffler features a compact 250 mm body and a 140 mm diameter, making it ideal for installations where space is limited but acoustic performance is essential. Constructed from premium stainless steel (1.4307) and manufactured in Sweden, it delivers exceptional durability and excellent sound absorption. With a straight-through perforated core and an 89 mm inlet, this muffler ensures optimal flow for engines up to approx. 900 HP, making it an excellent choice for turbo applications, high-performance builds, and custom exhaust systems.Key Features
- Premium stainless steel 1.4307
- Very quiet – excellent sound reduction in independent tests
- Compact round design (140 mm) for tight installation spaces
- Straight-through perforated absorption tube – no chambers
- 89 mm slotted inlet suitable for clamp or weld mounting
- Performance capacity up to approx. 900 HP
- Made in Sweden – premium quality, no low-cost production
Technical Specifications
- Material: Stainless Steel 1.4307
- Body Length: 250 mm
- Diameter: 140 mm (round)
- Inlet Size: 89 mm (inner diameter, slotted)
- Performance Rating: Up to approx. 900 HP
- Weight: 3.2 kg
Noise Reduction Comparison
Measured values from stationary tests (idle & 2000 rpm, vs. no muffler):- 76 mm Split: −5 dB*
- 76 mm Turbex: −7 dB*
- 76 mm Turbo: −8 dB*
- 76 mm Turbolight: −7 dB*
- 76 mm Turbonett: −2 dB*
- 76 mm Turbotight: −3 dB*
*Approximate values. A 10 dB reduction is perceived as half the loudness.
Legal Notice
No TÜV approval. Motorsport or individual approval (§21) only.
| Anschluss: | 89 mm |
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About SIMONS – Premium Exhaust Technology from Sweden
SIMONS is a renowned Swedish manufacturer specializing in high-quality stainless-steel exhaust components. All SIMONS mufflers and exhaust parts are fully produced in Sweden, ensuring consistent quality, precise craftsmanship, and long-lasting durability. Unlike low-cost imports, SIMONS focuses on engineered performance, excellent acoustic control, and premium material selection. SIMONS products are widely used in motorsport, custom exhaust fabrication, high-performance builds, and enthusiast applications where reliability and sound control are essential.Core Strengths & Philosophy
- 100% Made in Sweden – no outsourced manufacturing, guaranteeing stable quality standards.
- High-grade stainless steel (1.4307) for maximum durability and corrosion resistance.
- Advanced noise reduction – SIMONS mufflers are known to be significantly quieter than many competing brands in comparative tests.
- Straight-through absorption design – no internal chambers, ensuring very low exhaust backpressure for maximum engine performance.
- Compatible with high-power applications – depending on the model, suitable for 300–1000+ HP builds.
- Flexible installation – slotted inlets/outlets allow both clamp mounting and welding.
- Versatile use – can be installed as front, mid, or rear mufflers thanks to the fully perforated-core layout.
Product Characteristics
- Stainless steel construction throughout (housing + connections).
- Optimized muffler shapes: round, oval, split, dual-flow, and T-split configurations.
- Large body volumes available for exceptional sound reduction.
- Perforated straight-pipe internals for maximum flow efficiency.
- Ideal for turbocharged engines, performance modifications, and custom exhaust builds.
Noise Reduction Expertise
SIMONS mufflers are known for producing a very quiet exhaust tone compared to many alternatives. Test results from motorsport workshops (e.g., Boost-Products) have shown superior noise-damping performance while still maintaining optimal flow characteristics. A 10 dB reduction is perceived by the human ear as roughly half the loudness — SIMONS products consistently achieve strong reductions depending on model and configuration.Legal Information
- No TÜV approval included.
- Use in motorsport or with individual inspection/approval (§21) only.
- Responsibility for road legality depends on regional regulations.
Who is SIMONS suitable for?
- Performance-oriented vehicle builds
- Custom dual-exit and multi-pipe exhaust systems
- Turbo and high-horsepower applications
- Customers seeking excellent noise reduction without sacrificing power
- Fabricators requiring robust, weld-friendly stainless components
Summary
SIMONS stands for Swedish precision, robust stainless-steel construction, and outstanding sound dampening. Their universal mufflers and exhaust components provide an ideal balance of performance, acoustics, and longevity — making SIMONS one of the most trusted brands for custom and motorsport-grade exhaust systems.Login
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