Strup A11201-SS Honda Civic Si 4-1 Stainless Steel Header
T-304 #1 grade stainless steel tubing, polished to a bright luster, 11/2” x 21/2” mandrel bent tubing X .065 wall thickness. Flange is 3/8” thick stainless steel.
All headers are TIG welded construction.
Provides 10-12 horsepower gains.
All Strup Headers re-use the OEM stock manifold metal gaskets
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