Barkers Exhaust YFZ 450R
EFI Models.
Quick Snapshot
- Fits: Yamaha YFZ450R EFI models (2009 to present)
- 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
- Note: the muffler has been updated to the round style (Updated pics coming soon)
What You’ll Feel
The Barker’s Full Single exhaust delivers. You will feel the difference.
- Stronger acceleration out of corners
- Power that carries farther before shifting
- Sharper throttle response
- A deep, aggressive Barker’s exhaust note
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
- 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.
The Power Commander 6 fuel injection tuning device allows you to optimize your fuel and timing curve. With fine tune adjustability and multiple inputs, the Power Commander 6 will keep your vehicle running at its full potential letting you concentrate on the journey ahead.
This order ships to you free!
