BMW TUNING PRODUCTS
FRONT SPOILER
With the SIDE SPOILER, excellent aerodynamics provide downforce and lateral stability.
FOR E9X N52 ENGINE
An exhaust system that balances sound and performance.
Aerodynamics
Front Spoiler G8XM
INFORMATION
Summer Break
August 10 (Mon) – August 18 (Tue)
Blog Posts
Wide Front Fender for F82 M4 / Master Model
Wide Front Fenders for BMW F82 M4: Improved Cornering Force These front fenders were developed to improve cornering force. Based on the characteristics of the BMW F82 M4, the ASSIST F-M4 had already verified that cornering force is enhanced when all tires are the same size.While the ASSIST F-M4 project achieved uniform tire sizes through fender modification, we have now commercialized a wide fender that offers both weight reduction and improved cooling.The design retains the stock lines while incorporating a street-sport aesthetic. The increased volume from the wider fenders and the cooling ducts create an aggressive style. With the minimum necessary widening and slim ducts, the design has been meticulously crafted down to the finest details to ensure a balanced look—whether installed as a standalone fender kit or added to a vehicle already equipped with an aero kit. The stock BMW side markers are reused. These fenders can be installed on vehicles equipped with LAPTORR side spoilers without any modification. Reference values for fender width: These wide fenders are designed to accommodate BBS RI-A 18" 11.0J and RAYS TE37SAGA 18" 11.0J wheels with YOKOHAMA ADVAN A052 295/35-18 tires on the front.For the suspension, an INTRAX adjustable suspension system with camber/caster-adjustable front upper mounts is required, with camber values set to approximately -2.5 to -3.0°. They also feature improved cooling. The ducts around the side markers have been extended to the side steps, and slits have been added to the top surface of the fenders. The master model is made of dry carbon using the prepreg process and weighs 810g. The lineup is planned to include two types: dry carbon and dry FRP. Prices will be announced at a later date.
Developed EXHAUST for the A90/91 Supra B58
Performance! Due to the characteristics of the B58 engine, while torque is extremely high up to about 2,000–4,000 rpm, it tends to drop significantly as the engine revs increase, primarily due to the turbocharger’s capacity. As a performance muffler, the LAPTORR exhaust is designed to promote turbine rotation through low friction, delivering excellent performance in the high-rpm range. It also features careful control of exhaust pressure, so you won’t notice any loss of torque in the low- to mid-rpm range. Sound Quality is a Priority! In Sport+ Mode, the clear and pleasant exhaust note at high RPMs has a truly race-inspired feel! In Comfort Mode, its simple design effectively suppresses “muffled” sounds. Volume! In Sport+ Mode, the volume is tuned to deliver the optimal sporty sound and tone from the driver’s seat when the throttle is fully open.Since the Supra’s cabin is highly sound-insulated, the volume may seem a bit loud when heard from outside. With exhaust bubbling sounds from systems like the bootmod3, the volume is more than sufficient, so you have a wide range of adjustment options, making it easy to tailor the volume and sound quality to your preference. In Comfort Mode, when driving at a constant speed without accelerating, the volume inside the cabin is low enough to allow for comfortable conversation, thanks to the characteristics of the B58 engine. Prototype (the piping configuration differs slightly from this product)
Hot Version: Toge Maou 2019 WINNER
The ASSIST-M4 emerged as the winner at the 2019 Toge Maou Championship, featured on the Keiichi Tsuchiya Special Hot Version DVD. Since Japan’s top drivers compete at astonishing speeds on mountain passes—challenging locations that differ significantly from circuits—the quality of the tuning makes all the difference. The fact that the ASSIST-M4, which also serves as a development vehicle for LAPTORR products, claimed the title of “Maou” is a crowning achievement that proves LAPTORR’s quality.
TIME ATTACK
REVSPEED Suzuka 2022 YouTube Video
BEST LAP 2' 13" 509 (February 22, 2022)
DRIVER: Nobuteru Taniguchi
ATTACK Tsukuba 2022 YouTube Video
BEST LAP 58" 356 (February 19, 2022)
DRIVER: Nobuteru Taniguchi
ATTACK Okayama 2021 YouTube Video
BEST LAP 1' 37" 352 (March 9, 2021)
DRIVER: Nobuteru Taniguchi
Time attack events serve as a stage for us to showcase our tuning capabilities. At the same time, the driving data collected from these events contributes significantly to the development of not only motorsports components but also street parts.
TIME ATTACK
Attack Tsukuba 2026 YouTube Video
BEST LAP: 57.560 (February 14, 2026)
DRIVER: Nobuteru Taniguchi
Video OPTION Channel x web OPTION Toge Super Lap 2025 YouTube Video
DRIVER: Nobuteru Taniguchi

