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SIMONS Silencer Split - 63,5mm - LEISE

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

This compact SIMONS universal muffler features a single 63.5 mm inlet and dual 51 mm outlets, making it the ideal choice for custom duplex exhaust systems with limited installation space. The 185×115 mm oval body and 315 mm length provide effective noise reduction while maintaining sporty performance characteristics. Made entirely in Sweden from stainless steel 1.4307, this muffler offers outstanding durability and superior acoustic damping compared to many competitor brands. The straight-through perforated absorption core ensures minimal back pressure – suitable for engines up to approx. 350 HP.

Key Features

  • Premium stainless steel construction (1.4307)
  • Dual outlet: 1×63.5 mm → 2×51 mm (slotted for clamp mounting)
  • Compact oval body for efficient noise reduction
  • Through-pipe absorption design for optimal flow
  • Suitable for engines up to approx. 350 HP
  • Made in Sweden – no low-cost imports
  • Ideal for custom duplex exhaust setups

Technical Specifications

  • Material: Stainless Steel 1.4307
  • Body Length: 315 mm
  • Body Size: 185 × 115 mm oval
  • Inlet: 1× 63.5 mm (inner diameter, slotted)
  • Outlets: 2× 51 mm (inner diameter, slotted)
  • Outlet spacing: 25 mm (±2 mm)
  • Performance rating: Up to approx. 350 HP
  • Weight: 3.5 kg

Noise Reduction Comparison

Based on 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. A 10 dB reduction is perceived as half the loudness.

Legal Notice

No TÜV certification. Motorsport use or individual approval (§21) only.

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