Materials
304 Stainless Foundation
Crafted with 20-gauge 304 stainless steel, this full system is built as a strong starting point for Oval Track applications.
Yoshimura · Alpha T · Full System
The Yoshimura Oval Lightning Sprint Full Exhaust is a Signature Series Exhaust System built as an Alpha T Full System for GSX-R1000 powered Oval Track race car applications. Developed from decades of four-stroke experience, this stainless system is engineered to deliver a refined, race-focused solution for builders looking for a purpose-designed exhaust package rather than a homegrown setup.
This system is described as easily adaptable for most shaft-driven Oval Track car platforms with 2005 to current Suzuki GSX-R1000 engines, and it is designed around common Lightning Sprint chassis confirmations. See the page tables and the included installation PDF link for supporting details.
Materials
Crafted with 20-gauge 304 stainless steel, this full system is built as a strong starting point for Oval Track applications.
Performance
A purge-welded 4 - 2 - 1 layout with a Merge collector is used to support optimized exhaust flow and performance. Mandrel bends help maintain consistent tube diameter through the radius of each bend, helping preserve the intended routing and geometry throughout the system.
Installation
Spring mounting is engineered to allow for engine and chassis flex while supporting easier removal. Supporting hardware details include machined exhaust port manifold flanges, a vibration dampening rubber insulated muffler clamp, and an adjustable muffler mount to help accommodate chassis packaging needs during installation.
Development
This Yoshimura full system is positioned specifically for Lightning Sprint Cars and GSX-R1000 powered Oval Track race cars. The manufacturer notes ongoing four-wheel racing development alongside experienced drivers on dirt, applying established GSX-R1000 engine knowledge to Oval Track exhaust design and fit considerations.
Engineering
Key fabrication elements focus on consistency and fit for race applications. The system uses 20-gauge 304 stainless steel construction, mandrel bends for consistent tube diameter, and purge welded joints. The 4 - 2 - 1 routing and Merge collector are intended to support optimized exhaust flow and performance while maintaining a purpose-designed layout for chassis packaging.
Fitment
The system is designed for Joker, Edge, H&E, and Cheater chassis, with notes that other chassis configuration fitments may vary. The listing also indicates some modifications may be required due to chassis and engine mount variations. Additional chassis names referenced include Hyper, Triple X, and Henchcraft, with others noted as potentially varying.
| Part Number | 390190P520 |
|---|---|
| Brand | Yoshimura |
| Product Line | Signature Series Exhaust System |
| Series | Alpha T |
| System Type | Full System |
| Shipping Weight | 21 lb |
| Barcode | 00840025913196 |
| Emissions Compliance | QUALIFIED MANUFACTURER DECLARED "REPLACEMENT PART" |
Instructions / What's Included (PDF)
Provided by Yoshimura. Opens in a new tab.
