OVER Racing SESMIC-IV 3-1 Full Exhaust System – Yamaha XSR900 GP / XSR900

Classic 1980s Racing Style. Modern Japanese Engineering.

Bring the unmistakable character of Japan's golden era of motorcycle racing to your Yamaha XSR900 GP with the OVER Racing SESMIC-IV 3-1 Full Exhaust System.

Designed and manufactured by OVER Racing in Japan, this premium exhaust system combines classic racing aesthetics with modern exhaust technology, perfectly complementing the XSR900 GP's distinctive 1980s-inspired styling.

Featuring black-painted stainless steel headers, a polished aluminium exhaust stay and the iconic ribbed SESMIC-IV aluminium silencer, the system captures the appearance of OVER Racing's original exhaust designs while incorporating modern internal engineering.

The result is a distinctive exhaust that enhances the character of Yamaha's CP3 three-cylinder engine, delivering a satisfying exhaust note and a classic racing appearance.

Features

• OVER Racing SESMIC-IV 3-1 Full Exhaust System

• Classic 1980s Japanese racing-inspired design

• Black-painted stainless steel exhaust headers

• Stainless steel tail pipe

• Ribbed SESMIC-IV aluminium silencer

• 350mm silencer length

• Polished aluminium exhaust mounting stay

• Modern internal silencer construction for improved durability, performance and noise reduction

• Designed to complement the Yamaha CP3 three-cylinder engine

• Complies with specified Japanese noise and exhaust emissions regulations

• Compatible with the genuine Yamaha optional under cowl

• Retains access to the oil drain bolt and oil filter

• Suitable for two-up riding

• Made in Japan

Specifications

Fitment

Important: Fitment is specified for motorcycles with the 8BL-RN96J model designation. Confirm your motorcycle's model code before ordering, as compatibility with other market specifications has not been established.

Installation Compatibility

• Oil Drain Bolt Access: Retained

• Oil Filter Access: Retained

• Passenger Footrests / Two-Up Riding: Compatible

• Genuine Yamaha Optional Under Cowl: Compatible

Performance & Benefits

Classic OVER Racing Heritage

The SESMIC-IV draws inspiration from OVER Racing's original exhaust systems, recreating the distinctive ribbed aluminium silencer and classic racing appearance associated with Japanese performance motorcycles.

Its combination of black exhaust headers, polished aluminium components and simple collector design perfectly complements the retro Grand Prix styling of the XSR900 GP.

Modern Exhaust Technology

While the exterior faithfully reflects OVER Racing's heritage designs, the SESMIC-IV features an updated internal structure incorporating technology developed for modern racing motorcycles.

This construction is designed to improve durability, power delivery and noise control while retaining the unmistakable character of a classic performance exhaust.

Enhanced Three-Cylinder Character

Developed to complement Yamaha's CP3 three-cylinder engine, the 3-into-1 configuration enhances the distinctive character of the XSR900 GP and XSR900.

The system is designed to deliver an engaging exhaust note while allowing riders to enjoy the engine's strong, torque-rich performance.

Practical Everyday Design

Unlike many racing exhaust systems, the SESMIC-IV has been designed with practical motorcycle use in mind.

Access to the oil drain bolt and oil filter is retained, and the system is compatible with passenger use and the genuine Yamaha optional under cowl.

Japanese Noise & Emissions Compliance

The OVER Racing SESMIC-IV is specified as complying with:

• Japanese 2016 Noise Regulations

• Japanese 2020 Exhaust Gas Regulations

Manufacturer-stated sound levels:

• Proximity: 94dB

• Acceleration: 80dB

These figures relate to the manufacturer's specified testing conditions.

Important: Japanese regulatory compliance does not automatically establish compliance with New Zealand road-use, noise or vehicle inspection requirements.

Important Information

• Designed for Yamaha motorcycles with the specified 8BL-RN96J model designation.

• Confirm model code and compatibility before ordering.

• Japanese noise and emissions compliance does not guarantee New Zealand road legality.

• Installation should be carried out by a suitably qualified motorcycle technician.

• Product images are for reference only and may show other products or accessories.

• Any supplied instruction manual may be written in Japanese.

• Specifications may change without notice at the manufacturer's discretion.

• This is an imported product. Supplier availability and international freight may affect delivery times.

Special Order Information

This product may be sourced specifically for your order. Please confirm compatibility before purchasing.

Special-order cancellations and change-of-mind returns may be restricted once supplier ordering has commenced. Your rights under applicable New Zealand consumer law remain unaffected.

Japanese Racing Heritage. Reimagined.

The OVER Racing SESMIC-IV 3-1 Full Exhaust System combines the unmistakable styling of 1980s Japanese racing motorcycles with modern exhaust engineering.

With its black stainless steel headers, iconic ribbed aluminium silencer and carefully engineered internal construction, it's a premium Japanese-made upgrade for enthusiasts wanting to enhance the classic character of their Yamaha XSR900 GP or XSR900.