Spark Exhaust Grid-O Full System Low Mount Euro5 Honda CB650R / CBR650R (2019-2025) GHO8838TOM
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Four kilos off a middleweight four, and the motorcycle keeps its papers. Spark's low-mount kit for the CB and CBR 650R is Euro5 approved, and the silencer at the end of it is the same Grid-O that took the 2020 Moto2 world championship.
Key Features
- Euro5 approved full system for the Honda CB650R and CBR650R.
- AISI 304 stainless manifolds with a 3-into-1 pipe.
- Light pre-silencer box containing the catalyst.
- Grid-O silencer in full titanium, visible TIG welds.
- 6,5 kg against 10,7 kg for the standard system.
- Provision for the dual lambda sensor.
Check Your Homologation Number Before Ordering
Spark publishes the approval numbers this kit is valid for, together with the engine codes they belong to. It is worth two minutes with the vehicle documents.
The numbers are e13*168/2013*00097 and *00098 for engine RC74E; *00501, *00502, *00517 and *00518 for RH01E; *01837 to *01840 for RH15E; and e4*168/2013*00122 to *00125 for RH03E. If the number in your papers is on that list, the approval applies to your motorcycle.
A Catalyst Built for the Job
The kit does not delete the catalytic converter — it replaces it with Spark's own, in a light box ahead of the silencer. Spark describes it as a racing-cell catalyst heavily impregnated with noble metal: fewer restrictions in the gas path, enough conversion to stay inside Euro5.
That, plus work on the collector diameters and the 4-2-1 conic sections, is where the mid-range gain comes from. Spark is specific that the power curve was optimised in the middle rather than at the top.
The Moto2 Silencer
The Grid-O on this kit is the full titanium article with visible TIG welds — the same silencer that was on the 2020 Moto2 world championship-winning machine. Spark says so plainly rather than implying it.
Its mesh outlet cap is the visual signature, and on a four-cylinder 650 the large diameter is what gives the sound its body.
One Warning for Euro5+ Bikes
Spark states it in capitals: fitting this exhaust to a Euro5+ machine may bring on the engine warning light. The kit is built with a provision for the dual lambda sensor, but the later emissions generation is not what the approval was written for.
On a Euro5 CB650R it is a straightforward fit. On a Euro5+ one, expect the dashboard to have an opinion.
Fitment & Compatibility
Honda CB650R Neo Sports Café and CBR650R, 2019 to 2025. The racing versions of the same platform are GHO8839T with a Konix Evo silencer, GHO8840T with a Grid-O, and GHO8841T with a titanium TIG-welded pipe.
Road Approval
Euro5 approved, subject to the homologation numbers listed above matching the vehicle documents.
Specifications
- Part number: GHO8838TOM
- Type: Full system, low mount
- Design: Grid-O
- Manifolds: AISI 304 stainless steel, 3 into 1
- Catalyst: Spark racing-cell catalyst in a pre-silencer box
- Silencer: full titanium, visible TIG welds
- Weight: 6,5 kg (standard system 10,7 kg)
- Lambda: provision for the dual sensor
- Road approval: Euro5 approved
- Fitment: Honda CB650R / CBR650R (2019-2025)
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
| Part number | GHO8838TOM |
|---|---|
| Type | Full system |
| Silencer design | Grid-O |
| Material | Titanium |
| Spark weight | 6.5 kg |
| Standard weight | 10.7 kg |
| Weight saving | 4.2 kg |
| Fitment | Honda CB650R NEO SPORTS CAFE / CBR650R (2021-2025) |
| Road approval | EC type-approved — check certificate scope |
| Origin | Made in Italy |
- Honda CB650R NEO SPORTS CAFE
- Honda CBR650R
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// Spark Exhaust
Spark Exhaust Grid-O Full System Low Mount Euro5 Honda CB650R / CBR650R (2019-2025) GHO8838TOM

Tech specs
- Part number
- GHO8838TOM
- Type
- Full system
- Silencer design
- Grid-O
- Material
- Titanium
- Spark weight
- 6.5 kg
- Standard weight
- 10.7 kg
- Weight saving
- 4.2 kg
- Fitment
- Honda CB650R NEO SPORTS CAFE / CBR650R (2021-2025)
- Road approval
- EC type-approved — check certificate scope
- Origin
- Made in Italy
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
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