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Platinum and 
Works Pipes   | 
   
   
- The winingest aftermarket pipe in the motocross world
 - Intense testing, 
and riding ensures performance that works from every pipe
 - Knowledge gained 
from the top levels of racing, computer-aided design for more exacting specs, 
plus a commitment to excellence has made Pro Circuit the dominant pipe at all 
levels of competitions
 - Two styles available: Platinum pipes have a nickel-plated 
finish, while Works pipes have a bare metal finish; performance, fit and all other 
features are exactly the same
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 Platinum 
Pipe   
   |   Works 
Pipe   
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    R304 
Factory Sound Silencers  
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 R304 Shorty 
Silencers    
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 |   Features:    - Add power 
and a works-like exhaust note
 - Factory Sound silencers feature aluminum 
body construction
 - Stainless steel end caps and tubing; resist rust
 - Rebuildable
  (Note: 
Silencer PART #'s ending with an "E" are the new Euro end-cap style)  | Features: 
  - Used by practically every PC-equipped motocross professional on 
the podium today
 - Race-only silencer features a short body with reduced 
packing volume for optimum exhaust flow
 - Stainless-steel end caps and intake 
tube, an extruded aluminum body with brushed finish and light weight
 - High-strength 
aluminum rivets and steel Allen head screws on one end for easy disassembly and 
rebuilding
  (Note: Silencer PART #'s ending with an 
"E" are the new Euro end-cap style)  | 
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Spark Arrestor 
Silencers  
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- Quiet, U.S. Forest Service approved
 - No power loss
 - Aluminum 
housing
 - Clog-free design; maintenance free
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   2-Stroke Application 
Guides - Pipes & Silencers:   
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      T-4 
Four Stroke Silencers and Systems 
     
- Improved power delivery and exhaust note
 - Tuneable end caps allow fine-tuning 
of power delivery for different types of riding and terrain
 - Top-quality 
stainless steel and aluminum construction eliminates rust problems
 - Machined 
aluminum end caps
 - silencers include spark arrestors that can be removed 
for closed-course racing; silencer is completely rebuildable
 - T-4 silencers 
sold with Pro Circuit header pipes for most models; silencers for Honda XR400R/CRF450R/XR600R/XR650L 
and KTM 400/520 use stock head pipes
   
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  |   4-Stroke 
Application Guides - Silencers and Systems:  | 
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