THE EXHAUST SYSTEM
Precision Built. Purpose Fitted.
HKK Indore — trading as The Exhaust System — manufactures silencers, guards and engine parts for Royal Enfield motorcycles.
From raw steel to a bolt-on part
Rajkot has a long tradition of small-scale precision engineering, and HKK Indore works out of that same base — mild steel stock cut, formed, welded and finished on our own premises, not assembled from bought-in shells. Each silencer body is ceramic-wool packed for a controlled note rather than an open, unbaffled roar, and every weld is done by hand rather than by a jig that cannot account for a slightly different bike frame.
We build to fitment first: a Classic 350 body does not bolt onto a Hunter 350 mount, so our range is organised by bike model rather than by a single universal design. A part leaves our floor only after its weld, its fitment and its finish have each been checked by hand — not because a certificate requires it, but because a silencer that rattles loose at the clamp is a part we have to replace twice.
How a Silencer is Made
Four stages, each done in-house.
- 01
Cut & Form
Mild steel sheet and tube cut to the bike model’s own body dimensions.
- 02
Weld
Precision hand-welding of the body, baffle plate and mounting bracket.
- 03
Pack
Ceramic wool packed around the baffle for a controlled exhaust note.
- 04
Finish
Chrome plating, black powder coating, or both, applied on-site.
