The 1.0 in GT1.0Z stands for 1.0mm thick pipes, and Z stands for ultimate/final (nothing more), and the world's lightest muffler.
Lighter! Faster! More mechanical!
GT1.0Z Racing maximizes the performance of your tuning car.

The world's strongest ultra-lightweight, ultra-high performance racing exhaust system that maximizes weight reduction and performance of tuning cars.

The GT1.0ZRacing is the world's strongest, ultra-lightweight, ultra-high performance racing exhaust system, developed with the concept of "Even 0.1 seconds faster!" on the circuit.
Targeting special enthusiast users, the aim was to achieve thorough weight reduction and maximize the performance of the tuning car.

We have pursued thorough exhaust efficiency to maximize the performance of a fully tuned engine that emphasizes high revolutions and is primarily intended for circuit driving.

GT1.0ZRacing thoroughly pursues exhaust efficiency, and the turbo car has a completely straight structure with no sub-muffler or narrowing. (For naturally aspirated cars, a slightly narrowed sub-muffler is added to ensure torque.)
The inside of the main muffler is straight, allowing for muffling, thanks to Kakimoto's unique internal combustion engine structure. In addition, the layout of the main pipes has been designed to be straighter.
As a result, it has become possible to achieve thorough exhaust efficiency and maximize the performance of a fully tuned engine.
Because we were aiming for the ultimate in exhaust efficiency, the volume is quite loud, but the clear sound quality makes you feel that this is the "true Kakimoto sound" that will heat up your racing spirit.

Not only does it focus on performance, but it also pursues thorough weight reduction.

In the circuit category, weight reduction is of great importance.
By using a thin 1.0mm main pipe, lightweight flanges, hollow stays, etc., the stainless steel muffler for the BNR32 weighs approximately 7.4 kg, half the weight of the original muffler.
The slim main drum, measuring ø130 (ø115 for some models), not only reduces weight but also gives a sense of lightness in terms of style.

The GT1.0Z Racing exhaust system is designed to be lightweight and powerful, allowing the car to be tuned to the finest detail and to enjoy circuit driving, so some sacrifice has been made in durability. On the other hand, this means that the company is confident in its lightness and performance, so that it can compete even if it is inferior in durability.
Due to its light weight and its intended use for racing, the 1.0mm thick pipe exhaust system is not held to the same durability standards as conventional Kakimoto exhaust systems. Just like a tire (although this may not be the best way to put it), we would like you to think of the 1.0mm thick muffler as something that will naturally "wear down with use."
We do not advertise or promote the product with the easy excuse of being "same durability as before, and ultra-lightweight."
Although the durability is slightly inferior to conventional exhaust systems, to ensure that you can enjoy it for as long as the life of your car, the product has a structure unique to Kakimoto Kai and is available in a lineup where all parts can be repurchased as replacement parts (each component can be replaced).
By adopting the floating lock-on method, the pipes are securely and softly fastened with a T-bolt clamp, eliminating the risk of pipe deformation caused by tightening with the conventional U-band joint method, and the structure also allows worn or damaged parts to be easily replaced. This allows enthusiast users to pursue the best ride more aggressively, and allows them to maintain and maintain healthy performance at all times.
The lineup of replacement parts includes all components of the exhaust system, such as the main pipe, main muffler, and stays, as well as accessory parts such as T-bolt bands for stays, T-bolt bands for lock keys, lock keys, gaskets, etc.
In addition, the ultra-thin tail, less than 1.0mm thick, curls to increase strength and safety, and the original Kakimoto special coating (Pat No. 4691707)) creates a titanium-like burnt color. Under normal conditions, the thin wall of the tail would cause the stainless steel to burn and discolor to a brown, rotten look, but with use the tail will change color from yellow to blue in a beautiful way, like titanium. This discoloration is irresistible for enthusiasts!
The GT1.0Z Racing features meticulous attention to detail and an unparalleled structure.
This is a maniac model worthy of being called the pinnacle of Kakimoto Kai exhaust systems.