HKS HKSTUDIE Exhaust System for G80 / G82 BMW M3 & M4

The HKS HKSTUDIE Exhaust System for BMW M3 and M4 is engineered to reduce exhaust backpressure, unlocking higher engine output and noticeably sharper turbo response, particularly in the low rpm range where torque is significantly improved. While it enhances performance and delivers a more engaging exhaust note under load, its sound profile is carefully tuned to remain gentle and composed during cruising. The result is a system that elevates power and drivability without intrusive drone, preserving long-distance comfort for both driver and passengers.

Unique Tail Tip Design

• The specially designed tail tips pay homage to the legendary BMW 3.0 CSL, featuring thick-walled, slash-cut outlets that highlight the sculpted edges and a blasted surface for a subdued gloss finish. Sound-deadening inner slits further refine the tone and help create a truly one-of-a-kind tail tip design.

Gentle yet Powerful Sound

• The OEM G8X M exhaust already delivers a distinctly sporty M-series character, but simply replacing the main muffler does not dramatically alter the sound. The HKSTUDIE exhaust therefore adopts a layout that deletes the middle muffler, and its uniquely tuned frequency profile produces a sound that is gentle in cruising yet powerful and engaging under load.

Reduced Exhaust Pressure

• An optimized pipe layout and a main muffler designed without internal restrictions reduce exhaust backpressure by up to 35% compared with the OEM muffler. This improves boost response and high-rpm output, delivering gains of up to 6.7 horsepower and 15 foot pounds of torque.

Features

• Increases sound by 3db compared to OEM system
• Improves power by  6.7hp and 11ft/lbs
• 35% reduction to backpressure
• 70mm main pipes to quad 60.5mm pipes
• Constructed from SUS304 stainless steel
• 2 years or 30,000km warranty

Applications

• BMW M3: G80 (2021-2024)
  [S58 – 3.0L I6 twin-turbo]
• BMW M4: G82 (2021-2024)
  [S58 – 3.0L I6 twin-turbo]

Notes

• Designed to work with both standard and competition models
• Exhaust system is fully compliant with Japan’s vehicle inspection regulations

About HKS

HKS Co., Ltd. is a highly renowned Japanese automotive tuning and performance company. Founded in 1973 by Hiroyuki Hasegawa and Goichi Kitagawa, the company’s initials HKS are also derived from the name of its third partner, Sigma Automotive. With a reputation built on high-quality performance parts, HKS specializes in aftermarket components for a wide array of vehicles. The company has played a significant role in popularizing automotive tuning culture around the world. HKS is known for producing various performance-enhancing parts including turbochargers, exhaust systems, suspension components, and engine parts. Their products are engineered to provide maximum performance gains without sacrificing reliability or drivability. Over the decades, HKS has expanded its reach by participating in various motorsport events, ranging from drag racing to drift competitions and circuit racing. Their expertise in tuning and enhancing vehicles has led them to significant successes in different motorsport arenas. The commitment to research, development, and innovation has cemented HKS’s place as a leader in the automotive aftermarket industry. By maintaining rigorous quality control and focusing on the precise engineering of performance products, HKS has established strong relationships with automobile manufacturers, dealers, and enthusiasts worldwide. Sustainability and environmental considerations are also part of HKS’s commitment. They continue to innovate in ways that enhance performance while considering environmental impact. With a rich history and an unrelenting passion for pushing automotive performance to its limits, HKS continues to be a sought-after brand for automotive enthusiasts seeking top-tier performance upgrades and tuning solutions.