This is a new version of the popular Tri-Y Header Style now for Honda Civic 2006-2009 Chassis. This feature the latest CNC Flange design and the best material available (304 Brushed Stainless Steel). The header has a Brushed Stainless Steel Finish for a cleaner look and durability.COME WITH BOLT ON TEST PIPE FOR A HASSLE FREE INSTALLATION.Also only these headers have BRUSHED S/S pipes, cleaner welds, and we are authorized seller with 1-YEAR warranty. Other copy headers will not have the same guarantee. Many Honda/Acura engine builders have used this type of header since K series engine arrive on the market. This type of headers came for RSX, K-Swapped cars, etc. Now finally, they are here and will fit your NEW Civic SI. Now in 2009, this piece of art is finally available at an affordable price with no wait times. DYNO & RACE PROVEN. * BRAND NEW IN RETAIL BOX * BEST Ground Clearance * CNC machined flange (3/8" thick) * High Flow Tri-Y Merge Collector * Hand TIG weld * High Flow True 2.5" merge collector