Hi guy's, i am new to honda-tech and i myself has pick up an 2007 honda civic si 4 door . My question is that, is there any difference on 2 door si and 4 door si race header...Is there any length different or i can buy an 2 door si race header and bolt it right one my 4 door si ....thanking you for looking

 

itz the same when it comes to the race header only diff is when it comes to exhaust......

 

race headers are the same between the 2dr and 4dr....when it comes to exhaust, there is a difference...

 

Thx for the reply guyz.... Strup header here i come lol...