Originally Posted by Bonneville92V688
Originally Posted by 2004 BLK GXP
I was wondering what upgrades are out there for the 4.6L.
Nothing that I know of. Maybe you could do a intake for some noise, but won't gain anything. The N* really doesn't have any aftermarket.
Psh, Will, go back to 1992-1999
Of course there are mods, just not as many as the V6 guys. The Northstar responds VERY well to exhaust mods, like a good ol' flowmaster muffler for example...
This is a Caddy Seville, but it'* the same thing...
Also, you could also do intake mods... Pretty sure you can use the Intense kit, since IIRC the Northstar throttle body is the same diameter...
Also, GXP_Venom put nitrous in his car, and from what I hear, it'* pretty dang fast...
So, you have a pretty good idea of what you can do... PCM (computer that controls the powertrain) can NOT be modded, which is why people say that the N* has no aftermarket. So, there isn't really any parts available solely for the GXP, but you'll just have to get creative
Oh yeah, Welcome!