I just got them for my ek, they clear perfectly no notching needed. The only thing i don't like about is is the size of the piping and how low it hangs. Other than that its cheap enough to get you started.civic dx said:i've got the dc tsx header. it fits but you have to notch the subframe to clear the flange were it bolts together in the middle. i've heard that you don't have to modify the subframe for the on pice headers like the comptech one. ive been thinking of getting something else that might make more power. i don't think the dc header make as much as others.