I am planning on getting Cat backs for my accord 2000. Can anyone advise me what it will help with or is it easy to install and all of that info. Thanks

 

easiness to install (8/10)- need to jack up the car, and hold the new system in place while you attach it

performance upgrade (8/10)- noticeable with the ~10hp...you'll get about 20 with a good CAI or 18 with SRI, keep in mind SRI gets better low down power which is what and accord needs

coolness upgrade (10/10)- magnaflow has an amazing sound.. just as long as u dont get skunk 2 or some fart can like that

good brands: "magnaflow", "borla", "megan" is getting better, "Flowmaster" if u r into the whole muscle-car thing (in my opinion echhh)
I got the magnaflow because it souds like a ferrari 599 or lamborghini gallardo when the car gets to about 5500rpm's.

 

Catback - about 5-7 hp with the VERY most being 10hp
SRI or CAI - 1-2 hp

It is simple to replace a catback but the hard part will be if the nuts and bolts are corroded together on your factory exhaust system.