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here is a quick summary of what we have for a potential 4BW exhaust -- https://www.cadillacvnet.com/forums/threads/billy-boat-exhaust.4567/#post-88866

I agree that it is not a great metric but it is the current debate amongst my buddies One of them dropped an OTS tune into his GR supra and dropped 0.3 sec on nearly every single 0-60 run he makes The car runs absolutely incredible, stock fuel system, stock engine, OEM tires too. That extra...

to the fellas out there who tuned their cars -- what do your 0-60 times look like before/after, and what mods did you do to it? auto or manual does not matter- just looking for some data points to compare/contrast

100% agreed. 30 yards further down the highway and that innocent road crew would have been a part of this too.

how about this for a vanity plate happened 5min from the office yesterday morning during rush hour -- I pass this area every day, idk what he was thinking, but the dude allegedly walked away from this if you look closely, you can see his bottle of NOS shoot across the roadway to the shoulder...

do our cars limit boost pressure for the first 3-5 minutes after startup? (assuming it is up to temps from recent driving) I noticed a max boost pressure of 6psi while testing the green filters out yesterday. 5 minutes later and I was back up to the 11psi range. I checked all the lines and...

Solid information. Does anyone have a preferred set of aftermarket lug nuts they can recommend for use with Apex wheels?

not exactly performance related, but there were a ton of bugs, leaves and road debris sitting below the filters for me. I plugged the intake tubes and hit it with the shop vac Now I am trying to figure out if I can feel anything in the powerband, but it feels like my car idles smoother now...

I just got a letter from State Farm that my rates are increasing another 26%. Clean driving record, no accidents in over 10 years of coverage. I went and got a quote from USAA instead.

hey suburbandoom, did you ever meet back up with Bill Boat to mock up an exhaust system? He mentioned to me there was something in the oven in December (after your post)

those are Apex VS5-RS wheels https://apexwheels.com/gallery/cadillac/ct4-v-blackwing I went with a wider-than-OEM set in brushed clear and could not be happier with them

ps - this database works for chevrolet too

stick your vin at the end of the link here is mine https://cws.gm.com/vs-cws/vehshop/v2/vehicle/windowsticker?vin=1G6D75RP9N0410980

How do you like the C8 as a replacement for the 4BW -- Is it a step up in driver engagement?

Mixed feelings on the front end design, but I would love to see the new animated walk up lighting -- that sounds pretty awesome

installed green air filters, cleaned out airbox lid, checked oil level

So does this mean we are all clear to buy things that go into the OBD II port like a DTC assassin or a HPtuners Module?

Cory from Apex confirmed compatibility of their C8 HUF TPMS sensors with the 4/5 Blackwing (same cross compatibility as the OEM part) Happy Friday

Hey OP, now that you have had this installed for some time-- what are your overall thoughts on drone? I would like to keep the valves closed setting as close to what OEM is-- Does yours drone when cruising at highway speeds with valves closed on this setup? or is it close enough to stock to...

I resisted for as long as I could----- What will a gigs ported TB and green air filters do to a car with no tune installed? I know it may command a little less boost, but is there anything to gain? Just trying to get my feet wet with some bolt-ons before fully committing to a tune (and kissing...