Differences between 04-05

[cheezeonmakneez]

One more question.besides headlights, what else is needed to put the 05-06 bumper on the 02-04? I am getting mixed answers that say I need the 05-06 grille also. Any hep is appreciated

[1caintegra]

headlights thats it

[rsxer63]

headlight brackets, grill, headlights, grill (unless you go aftermarket bumper of course) and bumper plus a few misc bolts that are different.

[SOLOITR2001]

I have heard from a few people that the 2005 RSX-S is slightly better than the 2006 RSX-S. I dont know exactly what it was that they said is the reason but I think it had something to do with the 05 reving harder and faster than the 06 IDK. Just thought I would ask.

[1caintegra]

The 05 will run lean with out a tune with just adding headers