Thermal gives 10-12 hp. If you get snow you might want stainless steel. It's not loud at all. Nice deep sound. No complaints.

 

Greddy SP2 is what I have on my Civic Si and it's not too loud (unless you're really romping on it) and I believe it comes with a lifetime warranty for rust. Plus it's DOT legal. Not a ricey sound either.

 

Some states dont salt the roads.... Get stainless no matter what.

I will prob get stainless and powdercoat the muffler satin black.

 

i live in texas so we rarely get snow but ill get stainless no matter wat.

 

grandview is near dallas right? if so i live in denton..cool....i say custom or a thermal exhaust...personally im gonna go w/ 2.25"-2.5" piping, a glasspack aka resonator and a 40 series flowmaster(2 chamber).....i had a 60 series on my 02 civic si and sounded good just too quiet for me...i dont like REALLY loud exhaust but im sure it would have opened up if i had actually replaced piping w/ larger diameter...here is a clip of flowmaster on a civic(60 sreies-3 chamber)

http://videos.streetfire.net/search/...0d3badc006.htm

i dont know how soon your doing your exhaust but i should have the muffler put on within the next month...i just got dont paintin the muffler a flat black high temp. w/cermic for durability and will make a sound clip of before and after muffler

 

damn, that car needs stiffer suspension.. haha.

go here for custom pipes: kteller.com

Cheap for the quality.