Skip to main content Skip to search Skip to main navigation
Fast Shipping
100% Money Back Guarantee
+43 664 20 44 685
office@wetzberg.com

SIMONS Silencer Grandotight - 89mm - LEISE

"SIMONS Silencer Grandotight - 89mm - LEISE"

SIMONS Universal Stainless Steel Muffler – Compact, Quiet & Built for High Performance

This compact oval SIMONS universal muffler features a 250 mm body length and a large 220 × 140 mm cross-section, designed to provide excellent noise reduction even in high-performance applications up to 900 HP. Made in Sweden from stainless steel 1.4307, this muffler delivers outstanding longevity, quiet operation, and minimal back pressure thanks to its fully straight-through absorption interior. The 89 mm slotted inlet allows easy installation using clamps or welding. Ideal for turbocharged engines, performance builds, motorsport setups, and custom exhaust fabrication.

Key Features

  • Stainless steel 1.4307 – durable & corrosion-resistant
  • Very quiet operation – superior damping compared to many competitors
  • Compact oval design: 220 × 140 mm body
  • Straight-through absorption core for maximum flow
  • Suitable for engines up to approx. 900 HP
  • Easy mounting via clamp or welding
  • Made in Sweden – no low-cost imports

Technical Specifications

  • Material: Stainless Steel 1.4307
  • Body Length: 250 mm
  • Diameter / Shape: 220 × 140 mm oval
  • Inlet Size: 89 mm (inner diameter, slotted)
  • Performance Rating: Up to approx. 900 HP
  • Weight: 3.6 kg

Noise Reduction Comparison

Measured at idle and 2000 rpm compared to 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 use or individual approval (§21) only.

0 of 0 reviews

Average rating of 0 out of 5 stars

Leave a review!

Share your experiences with other customers.


Quick Contact Widget