DYNOJET - Q438 - Jet Kit - Stage 1/2 - Yamaha
The DYNOJET Q438 is precision hardware for atv builds a part that earns its place on any serious machine. Brass construction meets the quality standard atv riders demand. Stage 2 format. Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increase. Stage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increase. Increases power and drivability. Sold as a complete kit.
Features
- Stage 1: stock engine/filters, stock/modified pipes; about a 5% power increase
- Stage 2: stock/mild modified engine, stock/modified pipes, stock/modified filters; about an 8% power increase
- Increases power and drivability
- Fully adjustable
Specs
- Material: Brass
- Product Name: Jet Kit
- Riding Style: ATV
- Type: Stage 1
- Units: Kit
- Type: Stage 2
Frequently Asked Questions - DYNOJET - Q438 - Jet Kit - Stage 1/2 - Yamaha
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
