im looking at these 2 exhaust systems to put on my 07 Si

skunk2
http://www.procivic.com/pages-....html

apexi
http://www.procivic.com/pages-....html

on the skunk2 how easy is it to install and does this go from the headers back? or does it replace like an axel back like the apexi n1 does or am i wrong about something? how do each of them install basically..and on the skunk2 60mm or 70mm?

and what would be the best bet in your opinion?

 

yea um.... this is easy man. cat-back = catalytic converter back. also they are factory replacement exhausts and should use all the same hangers and connectors that the stock exhaust does. as for size i have no clue and dont care check with the manufacturer

 

so for example on the n1 its the muffler and a foot or so of piping that bolts onto the cat?

 

No they are both cat back systems. If you open the link for the A'PEXi exhaust it says cat back at the top of the page.

Skunk2 is loud, A'PEXi is less loud.

60mm piping for N/A setups
70mm if you plan on going forced induction.

Also last time i checked the search feature is still working at the top of the page. There have been numerous threads about this already.