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Tri-Y Pro Stock Header	15 Degree Wedge Tri-Y Header	Tri-Y Collectors
Tri-Y Comp Eliminator Wedge		Tri-Y Super Comp
Click on an image to enlarge...

Performance Welding Racing Headers has done extensive research and development with the Tri-Y header on the competition race engine. To date we have seen no increase in power on the Dyno, but the header does seem to accelerate on the race track slightly faster over a good four-into-one header with a properly sized merged collector.

The problems encountered with building a good Tri-Y competition header is that they are not a header that is a generally a bolt-on part. They seem to be tricky and can require changes in the secondary tube length and final merged collector sizing for maximum power.

We do run the Tri-Y header on our own competition race car and find it is a better accelerating header. Improvements of approximately 2 MPH and a reduction in ET have shown .02 on our own B/ED Competition Eliminator Dragster.

The down-side to the Tri-Y header is that it costs more to build and requires more effort and labor time, therefore the price of the header is higher. Our competition Tri-Y headers are built using 5" and 6" radius tubing while still maintaining the primary tube length down to a minimum. We use precision cut Two-into-One merged collectors, which are hand fit and finished. The secondary tube length is then tailored to your particular engine's power band and race car combination.

Most Tri-Y applications then use a megaphone on the outlet to increase the power band of the header.The Tri-Y header is built for each customer's application with the assumption that there may be changes necessary on the header.

We at Performance Welding Racing Headers feel that there are benefits in this type of race header, and if you are looking to extract that last ounce of power from your race car, this is the header for your application.