Tri_y system expained

Tri-y Exhaust System Features Explained

 
Made in USA
Proudly Made
in the USA
since 1962
 
  •Headers
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     High performance heavy
    Tri_y Headers
      Description of design
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Tri_y diagram
 
In Stan's "TRI-Y DESIGN" headers, the primary tubes are paired in a 4-into-2 and 2-into-l formation. This increases the cylinder scavenging effect and improves engine breathing by utilizing the exhaust velocity of one cylinder to help the exhaust velocity of another.
 
WHY "TRI-Y" HEADERS
Tests have indicated that the late model vehicles with lower operating RPM ranges function (Scavenge) more efficiently with the " TRI-Y DESIGN". Stan's "Tri-Y" headers were specifically designed for these engines. While 4-tube headers are well suited for some applications, the "Tri-Y Design" is significantly more effective on most street and off-road applications including the late-model, low-compression "Big Blocks". Header part numbers with a "Y" are " TRI-Y DESIGN ", the others are 4-tube.
 
 
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109Y 1968-82 Corvette 283-400cid
Corvette #109Y
172Y 1967-72 GM Pickups (2WD) 283-400cid
GM Pickup #172Y
175Y 1967-87 Camaro / Z-28 283-400cid
Camaro #175Y
244Y 1965-76 Ford Pickups (4WD) 352-390cid
Chevy #157


Come visit us, 25 miles South of Seattle, and have your new headers installed. Look for the sign.
Stan's Headers - 4715 Auburn Way North - Auburn, WA. 98002 USA
(253) 854-5310  |  (253) 850-1835  |  FAX (253) 854-8945
1-800-962-6467

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