2004-2008 YFZ450 Phoenix Performance Spiral Core Slip-on 

Phoenix Spiral Core

Top Performance and Top Quality not Top Price!

All aluminum T6 muffler with welded brackets (no band clamp brackets here)

CNC machined billet aluminum end cap with turn down

CNC mandrel smooth bent Stainless Steel mid-pipe

Stainless Steel; mid-pipe, muffler core, spark arrestor and all hardware

No mild steel, with a bolt on mid-pipe for a strong combination

Easy disassembly for re-packing, top quality BGF Techmat bonded packing

Spark arrestor installed

100% Made in the USA

Performance-  15-20% power increase with open airbox & performance air filter, 20%+ with Velocity Intake

Excellent throttle response, unbeatable mid-range and over-rev power

Spiral Core design-  More Power / Less Noise

1.875 inch spiral perforated core for better sound dissipation with a wide open design. 

That equals maximum power gains with less noise than other open pipe designs! 

92-95db idle with spark arrestor installed, not a 'quiet' design

Short and Fat-  11 inches long 4.5 diameter  

At 11 inches long it’s keeping the weight down, over 1 inch of sound absorbing packing depth throughout. 

Tough .120 wall thickness aluminum muffler is designed for "collision resistance" to last the life of your quad

Lifetime Warranty- protects against defect in materials and craftsmanship