BY REFERENCE RC RACING
Manufacturers
BY REFERENCE RC RACING
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ET345C-73
New product
Known as the "IRESA silencer", here you will find the RC RACING and345C-73 stainless steel exhaust silencer, manufactured in Spain, for which NSB CONCEPT has been an official distributor since 2009
RC RACING and345C-73 Stainless Steel Exhaust Silencer
The RC RACING and345C-73 silencer, like all our other exhausts, has been manufactured in our Spanish workshop since the 1980s.
All components of the RC RACING and345C-73 exhaust silencer are made of 304 stainless steel.
The pipes are available in standard diameters:
- 40mm
- 45mm
- 50mm
- 55mm
- 60mm
The largest diameter is always used to achieve optimal performance before being reduced to your desired diameter using a hydraulic press. original intermediary:

The sound-absorbing part of the and345C-73 RC RACING stainless steel silencer is made in 4 Elements:
- 304 stainless steel perforated tube, thickness 1.6 - 2mm
- steel wool to prevent the sound-absorbing wool from passing through the perforated tube
- the sound-absorbing wool formed into the silencer body
- 304 stainless steel silencer body, thickness 1.6mm external diameter 90mm for Group N and 127mm outer diameter for road use

The components of the and345C-73 silencer are MIG welded together (stainless steel wire with gas) on a pedal-driven lathe for consistent welds and significant thickness, guaranteeing the strength of the RC RACING and345C-73 silencer:

The final assembly of the and345C-73 exhaust silencer is done on a welding jig such as this and326:

This ensures that 100% of the and345C-73 silencers leaving the workshops are compliant, free of any defects, and fit perfectly in place of the original.
