Our new Terrain finally came in at the start of the week. The lighting situation is as bad as I thought; with the low beams and fog lights being piddly 1400 lumen H11 bulbs, things definitely need to change.
First things first. I ordered some of these newfangled Toshiba/GE HIR 9011 bulbs for the high beams ( they will have to be modified a little bit to fit in the 9005 socket). From the before and after images I've seen, it should make worlds of difference. The OEM highbeams are pretty decent, but I like to be able to see very clearly, especially with the many deer and antelope who live around here. The lights have been ordered from www.finemotoring.com
I considered using H9 bulbs in place of the H11's in the fog lights, but I couldn't find anything that I liked. Apparently H9's are still quite rare, as far as bulbs go. So instead I have ordered 2 sets of Osram Nightbreakers from www.powerbulbs.com
. I've heard excellent reviews (supposedly 90% more available light), so we'll see how the do in the fog lights.
I'm also putting a set of these Nightbreakers in the low beam headlights for now, it should be at least a livable improvement for over the winter. Eventually (read: when it warms up next spring) I'll be doing a HID retrofit. I'm not a fan of sticking modified D2S bulbs in housings that were not designed for it. I'd rather do it right. The retrofit will basically consist of Hella Gen 3 ballasts, Philips bulbs (4300K), and The Retrofit Source's new Honda S2000 replica projectors (when they finally finish them).
Anyway, I'll post pictures of the installation(s) and changes in output as I get there.
I received all of my bulbs in the mail. After reading the Acadia forums, and how inefficiently they were designed with regards to headlight access, I'm glad someone heard the complaints. Access was easy; a nice little port hole to reach through in the wheel well. Even the dust/moisture caps on the headlights themselves had a little bar to grab onto for twisting them on/off.
The H11's are a little brighter. Not too much difference, but as I said before it'll have to do for now. The HIR bulbs seem to make a lot of difference, especially once they've heated up fully.
Fog Lights: Before and After
Low Beams: Before and After
High Beams HIR: Before and After
Before and After pictures were taken using the same settings, in the same environment, in the same night, with the same camera, within a short period of time from each other, and with no photoshopping