hey wats up just though id share my times and see what everybody thinks. i have a 99 si with dc 4-1 headers, greddy catback exhasut, cold air intake. im running 205/4516 on toyo proxes fz4. i ran 15.773 @ 89.01 my second run was15.818@85.39 and my third run wasm 15.644@89.17. and my 60 foot times were all the same 2.458 i was launching between 4 and 4500with 33 psi in my tires. so tell me wat u think if there good numbers ar what ok thanks.

 

Drop the tire pressure and or ad drag radials to the mix...