will 2.5" high flow cats weld up to the pipes that go to the engine?

[infinitiboyj30]

i wanna do a full 2.5" exhaust system using 2 2.5" high flow cats and remove my mid mufflers,resonators,and muffler on back and add a megan racing muffler with a 2.5" inlet and 4" tip....

i wanna put these to high flow cats on it here is the link:

http://cgi.ebay.com/ebaymotors...23809

[kbflip02]

i wanna do a full 2.5" exhaust system using 2 2.5" high flow cats and remove my mid mufflers,resonators,and muffler on back and add a megan racing muffler with a 2.5" inlet and 4" tip....

i wanna put these to high flow cats on it here is the link:

http://cgi.ebay.com/ebaymotors...23809

depending on who u get to install they should be able to weld them to the exhaust manifolds(headers)...