Update 11/13/25: This exhaust was initially titled as a “full system”, this has been amended as it uses the stock headers.
With a pedigree in racing dating back to the early 70’s, Moriwaki Engineering was a Japanese motorcycle manufacturer and tuner company that started by a gentleman with the same namesake: Mamoru Moriwaki. The Japanese company specialized in race-oriented engines, motorcycles, and parts, making waves in the industry with their close ties to the Motorcycle Grand Prix.
Introduced in the latter-half of 1999 as a 2000 model, the Honda RC51 was a big-bore V-Twin superbike created to put an end to Ducati’s reign of supremacy in production-based racing. The RC51 featured a powerful liquid-cooled, fuel-injected, 999cc, 90-degree, DOHC V-Twin paired with a six-speed transmission and an aluminum alloy twin-spar frame. Honda achieved some impressive results with its “Ducati killer” in the form of World Superbike Championship titles in 2000 and then again in 2002 — the same year the RC51 was ridden to an AMA Championship. 2002 was also the year that Honda made some updates to the original model. The second generation RC51 (or SP2) benefited from a host of changes requested by Honda’s factory racers, including a taller windscreen, longer swingarm, reduced steering head angle, stronger yet lighter frame, and a power plant that got a few extra ponies.
One of the most desirable aftermarket exhaust systems for the RC51 comes from Moriwaki, specifically their titanium ZERO high mount system. The cans are dipped in a “rainbow” color to simulate the patina from when titanium heats up.
The seller purchased the exhaust from approximately five years ago and states, “Purchased to one day install on an RC51 but decided to part ways as I stopped street riding. This item is brand new in the factory box with the plastic still on the badges. It has never been installed.”
This system has not been available new for years.
The sale includes mounting hardware.
Cosmetic Blemishes:
“It’s pretty difficult to see, but there’s a small imperfection in the coating of the can. It’s all the way towards the part closest to the midpipe and would be out of view when the exhaust is installed.”
Currently located in Houston, Texas, this Moriwaki is offered on a Bill of Sale only. Have any Moriwaki stories or questions about this listing? Let us know in the “Comments” tab!
