Ok this might be stupid but, is there any particular kind of bolt i should get for use on exhaust components. My cat is coming this weekend and i would like to be all ready to install it, instead of making trips to home depot in the the middle of the install.

Exact sizes would help me greatly.

im guessing i need 3 bolts/nuts for the cat-bpipe connection and 2 bolts/nuts for the header-cat connections. And reuse stock springs.

Also i got a 2.5" 3-hole gasket at pep boys made by "Mr. Gasket". Will this be good enough?

Thanks in advance.

 

Unless you get the cat, from smsp, then you're gonna have to get it welded on, cause it doesnt have holes for bolts. When I put on my JDM 4-1, I didnt need any new bolts.

 

the cat is from Mike @ IPS so its ready to bolt on.

arnt the bolts for the stock cat, welded onto the cat flange, so i would need new bolts for that right.

and i heard that the 2 bolts for the header-cat connection were to short.