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 Heavy - 63,5mm - LEISE

"SIMONS Silencer Heavy - 63,5mm - LEISE"

SIMONS Universal Stainless Steel Muffler – Large Oval Body, Very Quiet & Durable

This large oval SIMONS universal muffler features a 500 mm body length for excellent noise reduction and smooth exhaust flow. Produced in Sweden from high-quality stainless steel (1.4307), it offers superior durability and consistently quieter performance compared to many competitor mufflers tested by SIMONS. With its straight-through perforated absorption core, the muffler ensures minimal back pressure, making it ideal for naturally aspirated or turbocharged engines up to approx. 350 HP. The 63.5 mm slotted inlet allows easy installation via clamp or weld.

Key Features

  • Premium stainless steel 1.4307
  • Very quiet – excellent noise reduction in independent tests
  • Large oval body (220 × 140 mm) for strong acoustic damping
  • Straight-through perforated core – no chambers
  • Suitable for engines up to approx. 350 HP
  • High durability and corrosion resistance
  • Made in Sweden – no low-cost import

Technical Specifications

  • Material: Stainless Steel 1.4307
  • Body Length: 500 mm
  • Diameter / Shape: 220 × 140 mm oval
  • Inlet Size: 63.5 mm (inner diameter, slotted)
  • Performance: Up to approx. 350 HP
  • Weight: 5.6 kg

Noise Reduction Comparison

Idle & 2000 rpm measurements (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. 10 dB reduction equals half perceived loudness.

Legal Notice

No TÜV approval. Motorsport 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