I'm new to Honda's, what websites are out there for performance parts for
the 7th gen v6 accord? I'm looking for basic mods such as catback exhaust, lowering springs/dampers and intake/ecu upgrade.

this forum isn't much of a modding forum. For suspension, check out neuspeed.com for springs and shocks (though they are actually koni shocks), tein makes coilovers and springs. A lot of people like magnaflow mufflers on their custom catbacks, though I'm not a fan. I don't know much about ecu stuff though as I don't really take my modding that far. The forums on v6performance.net and gen7accord.net will have a surplus of info for you. This forum is more of an owners forum with a lot of good info, but relatively few modders. Be careful of what you hear on v6performance.net though, that forum is notorious for having a lot of people who don't know what they are talking about (see any number of swaybar threads on that site for proof. "bigger is better"...not really.)