Slip-On Exhaust Tip for Honda Rebel 300 (2017-2025) Black with Baffle

High-Flow Shorty GP Slip-On Exhaust Tip for 2017-2025 Honda Rebel 300 (CMX300)

What it Does: The Shorty GP Slip-On Exhaust Tip replaces the heavy, restrictive factory muffler canister on the 2017-2025 Honda Rebel 300 to shed excess chassis weight, enhance exhaust gas scavenging, and deliver a clean, aggressive exhaust note.

The Stock Honda Rebel 300 Silencer Restriction

The OEM exhaust assembly on the CMX300 platform utilizes an oversized, multi-chambered silencer canister designed to meet strict decibel thresholds at the cost of performance and mass. Weighing over 10 pounds, the factory unit creates parasitic exhaust backpressure against the single-cylinder NC51E engine. This restriction disrupts scavenging efficiency in the mid-to-high RPM range, impedes throttle response, and results in a muted, sterile acoustic signature that fails to reflect the mechanical character of the machine.

The Engineering Solution

Constructed from high-grade stainless steel with a thermal-resistant matte black coating, this 9-inch GP-style slip-on maximizes exhaust gas velocity through an unrestricted straight-through internal path. Sized specifically to slide over OEM 1.72" to 1.75" outer diameter factory header pipes, it features a heavy-duty exhaust band clamp for an airtight, vibration-proof seal. The included removable Shorty GP catalyst baffle (dB killer) regulates backpressure to preserve low-end torque while containing volume to a controlled ~95 dB. By eliminating the factory chambered can, exhaust gas evacuation speeds increase significantly while dropping critical curb weight from the motorcycle's right side.

Technical Specifications

Compatibility

• 2017-2025 Honda Rebel 300 Base (CMX300)
• 2017-2025 Honda Rebel 300 ABS (CMX300A)

Frequently Asked Questions

Does this fit the CMX300 Rebel 300?

Yes, this is a direct fit for the 2017-2025 Honda Rebel 300 equipped with the NC51E engine and stock 1.72"–1.75" OD header pipe.

Is an ECU flash or tune required after installation?

The factory closed-loop EFI system automatically compensates for the reduced backpressure with the baffle installed, making an ECU tune optional rather than mandatory.

The Honda Acoustic Standard

Honda singles thrive on balanced backpressure and efficient pulse extraction. This GP slip-on unlocks the true acoustic cadence and crisp throttle snap of the NC51E powerplant without compromising reliability.