tsp vs speed engineering LT? 1 7/8
#4
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They are not made in the same factory. They are built similar as they are both polished stainless steel and 1-7/8" headers. Ours does have a velocity spike in the merge collector. From what I've seen Speed Engineering does not.
Lonnie
Lonnie
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#15
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FWIW, SE has put a lot of R&D into their headers, too.
SE has provided detailed measurements of their headers. They can be found in the very long thread in this section.