SleepnCiViC

k guys im gettin a dc sport jdm 4-1 header and i will be hookin it up to a custom carsound cat w/ flanges from hybrid garage. will i have to get new bolts to hook the cat and header up, or will the header come w/ them im confused let me know. by the way this is on a EK civic w/ b18c5

smnowell

I can promise you the header won't come with new bolts. Since you just did your swap, the bolts you have should be fairly fresh and come off easily. Old, rusty bolts usually break off and need to be replaced. But, you should be fine.

SleepnCiViC

but if im not mistaken the bolts are permant in the stock cat they dont screw out, and i know the car sound cat doesnt come w/ permant bolts in them.

STIBungy

On the after-cat side, they are studs pressed into the flange. On the pre-cat side, there are no bolts, just holes for bolts/nuts.

99blackcivicSi

they arn't pressed in they are screwed in if you break a stud go do the dealership and get new ones