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Fairly flat South Carolina state highway. The 55mph speed limit really helped. I think I was cruising in 6th at around 60mph, but with the occasional stop light, I tried not to be my usual hoon self on acceleration. I really didn't try that hard to get over 30mpg

I felt like hyper miling on the way to making 3 mpg on the track...

I've always read/heard if you are going to let a car sit, you are better off changing the oil BEFORE instead of after.

@poor-sha , have you tracked a car before with regular PS4S tires vs the TPC PS4S on the Blackwings? I thought the regular PS4Ss were very loud (in a good way) at the limit, but the TPCs seem a lot quieter to me, or was I just not driving fast enough, ha?

My experience was similar for track PSI. My tires were warm from the drive to the track, but I lowered the pressure to 29PSI all the way around. First session, I saw 37-39PSI on the dash (36-38PSI with a gauge) so I lowered back to 35PSI, and it held there the rest of the day (dash seems to read...

20% off Autozone right now.

Parking next to the track gas station was smart. Got 3.5 mpg on track. Edit: Not worth its own post, but this is how the pressures ended up after I got home...trippy.

Not regretting, but definitely put my name on the list juuuuuust in case I lose interest (doubtful) in the 5BW when the Z06 allocation comes up in 2 or 3 years.

This post kind of lumps the 4 and the 5 together, but for the LT4, what's the max boost that can be run with the waste gate fully closed? An extra 3-5 PSI is pretty significant.

I would take it into the dealer and have them drive it, while I rode in the passenger seat. If there is an issue this big, it will be obvious. It would also be hilarious to see them try to hide it, especially if you had a dashcam.

Have any 2023s been delivered yet?

These threads were so much easier when it was T56 vs. 4L60E on the 4th gen F-Body forums.

Interesting. The 5BW does not have a subwoofer, but 2 6x9s in the rear deck for bass. We are going to check their output range, and possibly just leave them unplugged if they are solely low frequency that the aftermarket sub can handle. I wonder if that would work without disabling the ANC. We...

You need to remove the rear quarter panel trim, and the rear deck since the speakers come out from the top.

There don't appear to be any. The rear deck speakers are 6x9 (the service manual says subwoofer in places, though). Also, the Cadillac website says 16 speaker AKG audio, but I only count 15. Two of each of these, except the front center speaker, just one.

Did you disable the ANC? If so, how? If not, any issues with odd sounds? Edit: I found this...I'm going to give it a shot and hope it works. I'm actually curious to see how much of a difference the ANC actually makes...

I have used it exclusively, but the few times I'm trying to make out what type of vehicle is behind me, and I can't, I switch it to regular mirror and it is clear as day. Same thing with night driving. I drove almost all the way home, trying to tell myself this is fine. Just a few miles to go I...

Nice. I've been debating going with a powered sub for ease of packaging and installation. I'm not sure the 5BW has a low level input in the rear of the car since I don't think it has a stock sub, so I guess I could use a high level input from the speakers. I would love to not run a single wire...

I have TRIED and TRIED to use the camera mirror in my 5BW, but man, is it not that good. Sure, freeway driving is where it's good as it eliminates blind spots (mostly). But, the clarity is not there. I cannot identify the type of vehicle at nearly the distance I can with the regular mirror...

I'm sorry, is this moron genius putting an LT4 in a freaking wrangler? I only listened to him for a minute or two, but he's super articulate...subscribed.