Yamaha YFZ450R (EFI) Full Single Exhaust System for 2009-2026 Models
Yamaha YFZ450R (EFI) Full Single Exhaust System for 2009-2026 Models is backordered and will ship as soon as it is back in stock.
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Quick Snapshot
- Fits: Yamaha YFZ450R EFI models (2009–2026)
- Power Gains:
- Up to +4 HP peak / +8 HP over-rev (with tuning)
- Up to +5 HP peak / +10 HP over-rev (with intake + tuning)
- Throttle Response: Faster, harder pull with power carrying higher into the RPMs
- Weight Savings: Significant reduction over stock
What You’ll Feel
This system is built for riders who want more than just peak numbers. The Barker’s Full Single delivers:
- Stronger acceleration out of corners
- Power that carries farther before shifting
- Sharper throttle response
- A deep, aggressive Barker’s exhaust note
Optional Add-Ons
👉 Also available as a Big 3 Package
Exhaust + intake + fuel controller for maximum performance.
Built the Right Way
Every Barker’s exhaust system is hand-built in the USA using premium materials:
- 304 stainless steel TIG-welded head pipe with smooth internal flow
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6061 aircraft-grade aluminum canister, lightweight - highest quality
Each system is welded one at a time — not mass-produced.
Sound & Trail Options
- Quiet Core: Reduces sound by up to 5 dB
- Spark Arrestor: Helps keep trails open and meets many riding-area requirements
Both options install easily without sacrificing performance.
Dyno Chart: Stock vs. Uncorked vs. Barker's Single Tuned
Want to see the dyno results and testing process? Read our full YFZ450R exhaust dyno breakdown →
Dirt Trax Yamaha YFZ450R Install & Review Video:
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Barker’s Exhaust provides a warranty on all exhaust systems for 1 year from the date of purchase to the original purchaser of the exhaust system. The warranty covers all manufacturing defects not caused by consumer damage.
Discoloration and blueing of exhaust pipes and mufflers are a natural result of tuning characteristics and not caused by a defect in manufacturing. Finishes with discoloration or rust due to inclement weather conditions and exposure to salt or chemicals are not covered.
Exhausts that are damaged by misuse, improper installation, modifications, incorrect tuning, impact, or crash damage will not be covered by the warranty. Exhausts that have incurred damage as a result of not being properly maintained or a lack of maintenance by the customer are not covered. Barker's reserves the right to determine whether the terms of this warranty have been voided. Exhaust systems that are not covered by warranty can be repaired by Barker’s Performance at the owner’s expense.
Further information can be found at: TERMS OF SERVICE
