HKSTUDIE EXHAUST for BMW G80/G82 Comp

HKS
HKSHKSTUDIE-EX001
4957266941010
Catback
4 Units In Stock - Ships Next Business Day
$ 5,500.00
FREE Ground Shipping!
$ 5,500.00

SKU: HKSTUDIE-EX001 | UPC: 4957266941010

HKSTUDIE EXHAUST for BMW G80 M3 G82 M4 Competition 2021+

The HKSTUDIE-EX001 catback exhaust system replaces the OEM rear muffler on 2021+ BMW G80 M3 Competition Sedan and G82 M4 Competition Coupe models equipped with the S58B30A engine. It deletes the middle muffler to deliver a gentle yet powerful sporty sound while slashing exhaust pressure by 35% for sharper boost response higher RPM power and gains of 5kW and 15Nm torque. Crafted in Japan this direct-fit system meets UN ECE-R51.03 Phase 2 standards for daily driving and inspections.

Key Features

  • One-of-a-Kind Tail Tip Design: Slash-cut tips honor the BMW 3.0 CSL with thick walls blasted dull glossy finish and inner slits for sound deadening creating distinctive texture and presence.
  • Gentle Yet Powerful Sound: Middle muffler delete paired with frequency-analyzed tuning produces the signature M sporty tone without harshness ideal for street use.
  • Compliant with Japan’s Vehicle Inspection Regulations: Passes strict UN ECE-R51.03 Phase 2 sound limits ensuring safe legal daily operation and inspection approval.
  • Reduce Exhaust Pressure by up to 35%: Restriction-free main muffler and optimized pipes improve high-RPM output boost responsiveness adding up to 5kW power and 15Nm torque over stock.
  • 2-Year or 30,000 km Product Warranty: In-house Japan factory production and rigorous quality checks back reliability from purchase date.

Product Notes

  • Middle muffler must be deleted during installation for full sound and performance benefits.
  • Clean blasted tail tip surfaces regularly with mild soap to maintain finish.
  • Ships in two cartons for secure transit.

Installation Notes

  • Professional installation recommended.
  • Bolt-on fit deletes OEM middle muffler no pipe cutting required.
  • Retains OEM hangers mounts and sensors fully compatible.

This Part Fits

Year Make Model Submodel
2021+ BMW M3 Competition Sedan (G80) RWD/xDrive
2021+ BMW M4 Competition Coupe (G82) RWD/xDrive

Why Choose HKSTUDIE?

  • In-house Japan factory builds every system for consistent craftsmanship.
  • Rigorous testing ensures performance durability and regulation compliance.
  • Precise engineering balances aggressive sound with refined daily usability.

Frequently Asked Questions

  • Q: Does it fit both RWD and xDrive G80/G82 Competition models?
    A: Yes bolt-on design works on 2021+ BMW M3 Competition Sedan (G80) and M4 Competition Coupe (G82) RWD and xDrive with S58B30A engine.
  • Q: What sound changes from stock?
    A: Delivers deeper sporty M-series tone via middle muffler delete and tuning stays gentle for daily drives while passing ECE-R51.03 Phase 2 limits.
  • Q: What does the warranty cover?
    A: Full 2-year or 30,000 km coverage from purchase on manufacturing defects with proof of professional installation.

Shipping & Handling

  • Method: Ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Two boxes C/No.1 1515 x 600 x 335 mm C/No.2 1161 x 460 x 290 mm
  • Weight: 39 kg total (C/No.1 25 kg C/No.2 14 kg)

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