Spark Exhaust Force Evo 400 mm Silencer with Heat Shield Yamaha R9 (2025-2026) G00SI44T
Prices for Serbia exclude tax · Shipping calculated at checkout
Outside the EU — customs duties and import taxes may apply.
Questions? Just reach out — our team will help you right away.
- Worldwide shipping
- Genuine parts & verified quality
- Personal email support
- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details and have no access to your credit card information.
Same Force Evo silencer, 400 mm of case instead of 350. Those extra fifty millimetres exist for one reason: to bring the decibel reading down far enough to get through scrutineering at circuits that enforce a hard limit. If your track days keep ending early because of the noise meter, this is the part number that solves it.
Key Features
- Force Evo silencer in the longer 400 mm case, supplied as a group with its heat shield.
- The extra case length is a noise measure, not a styling choice — more volume means more attenuation.
- Titanium case with the characteristic rib converging into the carbon end cap.
- Titanium sleeve, perforated inner tube and inner end cap.
- Fits Spark's R9 collectors GYA8801 and GYA8802.
- Made by Spark in Mantova, Italy.
Build Quality & Materials
Structurally this is the 350 mm Force Evo with a longer body: the same titanium construction, the same rib pressed into the case, the same carbon end cap. The rib is there because a thin titanium shell needs stiffening, and stretching the case by fifty millimetres increases the span it has to bridge — one of the quiet reasons Spark keeps the feature rather than dropping it for a cleaner surface.
The heat shield comes with the group. On a longer case it covers more of the tube, which matters if your rearsets sit high.
Performance & Sound
Extra length buys attenuation. Spark does not publish a figure for the 400 mm case on the R9, but the pattern across its range is consistent: on the Kawasaki ZX-4RR, moving from the standard Force Evo to the longer version takes the reading from 105 dB to 98 dB at 7,500 rpm. Expect a comparable relationship here, and ask us for the R9 measurement if a specific number decides whether you can ride.
Fitment & Compatibility
For Spark's R9 collectors GYA8801 and GYA8802. Check that your bodywork and rearsets clear the longer case before ordering — on some track setups the extra fifty millimetres is exactly where a bracket lives. The shorter version of the same silencer is GYA8801ST.
Road Approval
None. Quieter is not the same as legal: this silencer group has no EC approval and belongs on a circuit.
Specifications
- Part number: G00SI44T
- Type: Silencer group with heat shield
- Design: Force Evo, 400 mm case
- Material: Titanium case, carbon end cap
- Case length: 400 mm
- Heat shield: included
- Fits: Spark R9 collectors GYA8801 / GYA8802
- Fitment: Yamaha R9 (2025-2026)
- Road approval: None — track use only
- Manufacturer: Spark Exhaust Technology, Mantova, Italy
| Part number | G00SI44T |
|---|---|
| Type | Silencer |
| Silencer design | Force Evo |
| Material | Titanium |
| Dimensions | 400 mm long |
| Fitment | Yamaha R9 (2025-2026) |
| Road approval | None — track use only |
| Origin | Made in Italy |
- Yamaha R9
No reviews yet.
// Spark Exhaust
Spark Exhaust Force Evo 400 mm Silencer with Heat Shield Yamaha R9 (2025-2026) G00SI44T

Tech specs
- Part number
- G00SI44T
- Type
- Silencer
- Silencer design
- Force Evo
- Material
- Titanium
- Dimensions
- 400 mm long
- Fitment
- Yamaha R9 (2025-2026)
- Road approval
- None — track use only
- 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
Shipping & delivery
Estimate your shipping
Get the real shipping cost for this item to your address — the same rates as checkout.