HK Mini/Short Punjab Silencer (Big Mouth, Chrome) for Royal Enfield Classic 350 Reborn (J-Series) & New Bullet 350 2023+ (Battalion Black) – HK

Upgrade your J-Series Royal Enfield with the HK Short Punjab Big Mouth Chrome Silencer—the “short bottle” look with a wide/big-mouth outlet for riders who want a deeper, louder and more open exhaust note than small-mouth Punjab silencers. This variant is popular because it delivers a stronger bass presence and a more aggressive “thump” character while keeping the classic Punjab styling.

This product is intended for Classic 350 Reborn (J-Series) and All New Bullet 350 (2023+), including color variants like Battalion Black. It’s an aftermarket sound-style silencer (not OEM), so the key buying rule is to match your bike’s platform: J-Series only. If your bike is UCE (old Classic/Bullet/Electra), 650 Twins, or Himalayan platform, do not order—mounting and routing differ and returns will happen.

Sound/legality note: Big-mouth Punjab silencers are typically louder than stock and may attract attention depending on local enforcement. Buy it for the vibe, but use responsibly.

Key Features 

• HK brand Short Punjab / Mini Punjab “short bottle” style

• Big Mouth (wide outlet) for deeper, louder, more open note

• Chrome finish for classic Royal Enfield look

• Designed for J-Series 350 mounting (confirmed models below)

• Strong “retro” aesthetic upgrade for Reborn & New Bullet owners

• Suitable for riders searching: big mouth silencer, bada muh Punjab, short bottle exhaust

• Bolt-on category upgrade (fitment depends on correct clamp/bracket seating)

• Best practice: recheck clamp tightness after 50–100 km

Compatibility Table 

Explicit Exclusions

• ❌ Classic 350 UCE / Bullet UCE / Electra UCE / Classic 500 UCE

• ❌ Interceptor 650 / Continental GT 650

• ❌ Himalayan / Scram / Meteor / Hunter (separate listing only after separate verification)

Variants

• Big Mouth – Chrome (this listing)
  (Keep Small Mouth and Big Mouth as separate variants/stock units, because customers confuse sound levels and return rates spike.)

FAQs 

1. What is the difference between Big Mouth vs Small Mouth Punjab silencer?
   Big Mouth = wider outlet, generally louder + deeper + more open sound.
   Small Mouth = tighter outlet, usually sharper/punchier “beat” and slightly less open.
   (Exact sound depends on internal baffle/packing.)

2. Will this fit Bullet 350 Battalion Black?
   Yes—Battalion Black is a New Bullet 350 (2023+ J-Series) variant. This listing is for the New Bullet 350 platform.

3. Is it compatible with Classic 350 UCE / Electra / old Bullet?
   No. UCE mounting differs; do not order for UCE bikes.

4. Will it cause check engine light or need remap?
   Usually riders run it stock, but any exhaust change can alter feel. Ensure there are no leaks, sensors (if any) are seated properly, and installation is correct.

5. Is it legal / challan risk?
   Aftermarket sound-style silencers can be louder than OEM. Local rules vary—use responsibly and at your discretion.