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Thank you very much. I also sent an email to Apex and Corey confirmed that the 18x10 ET42 will fit the CT4 BW rears. Shoutout to @Apex Wheels for the speedy customer service and expertise. My goal for these wheels is to upgrade to race tire and go to 265 and 285 size tires. Maybe one day if I...

If you are looking for a NJ based dealer with a lot of BW service experience and the correct lifts, Gold Coast Cadillac may be worth the extra 45 minute drive IMO. They replaced my engine and diagnosed a steering issue for me with very impressive response times for both. It made me super...

Just wanted to confirm that I am reading this fitment guide correctly before I buy Can the CT4 BW run the OEM summer tires on wheels that are .5" wider with no issues? I would go with stock size wheels if there are any drawbacks or potential for wheel rub up front. Very interested in a set of...

tapout tuning sells all the carbon bits in both original CF finish and an awesome raw flake CF finish as well

Some drone with the valves open is no problem as long as they can be closed up for the neighborhood. Back in the day I used to not care at all, but nowadays NJ cops are more like proctologists. Did this set a CEL?

This is exactly what I wanted to hear.

How much louder is it vs stock with the valves open?

just curious-- do any unusual components/consumables start to wear faster when you increase the power output on the 4BW? There are the obvious pay to play answers like brakes and tires, but when I tuned one of my previous cars it started eating transmission mounts and all sorts of other "fun"...

Congrats on the car bro vary your RPMs and speed frequently- don't sit at the same speed for too long

^^^ this right here I had my girlfriend do a launch control for me when I was considering a set of catted downpipes. Needless to say, I kept it stock and just fold the rear seats down when I want to hear more decibels. This being said, the stock exhaust volume output on the 4BW is criminal in...

You are correct about the additional grip gained from lower pressures potentially making this hopping more pronounced. I have a feeling the softer, lower PSI tire has more of a chance to grip and flex before breaking friction with the contact surface outright, right before that "hop" sensation...

Try lowering your tire pressure to 32-33psi when cold and see how it reacts. IMO, the summer compound is quite firm in GM's TPC spec, so this may help you mitigate the excessive wheel hop. I have attached the Spring Mountain tire/alignment spec sheet below (note: they operate in much higher...

MyMode 80% of the time soft suspension, steering all the way up, exhaust in track, brake feel in the middle V Mode 20% of time mid suspension, steering all the way up, exhaust in track, brake feel all the way, engine/shift in track, PTM disengaged Have been starting to appreciate the sport...

I accidentally scraped up my driver side winglet/deflector but have no idea what the part # is for each side They appear to be held in place by two small bolts that go up into the bumper above - I think they were Torx but I could be wrong on that one

black friday sale on apex wheels = new set of apex wheels for summer set lol

you can source the v button button and PTM toggle switch from a place like GMpartsdirect.com I would imagine the core would not include those

as far as getting one from GM -- that may be tough but as a guy who has always been forced down the path less traveled, I would start at the dealer and then try a trophy store if your local dealer cannot help you.

zap them an email over at support -- the owner called me within half an hour of sending an email in and had my issue resolved immediately

Worst case, you can always swap the steering wheel -- they are all plug-and-play and are held on by a Torx T30 bolt -- it is super easy to diy I did it in my '12 coupe to match the CF interior package and it looked sweet

Took the car to my local dealer for a formal diagnosis of the wheel vibration. It was cupped tires (10k miles on this particular set of PS4 A/S - OEM size). Otto Cadillac in Albany insisted it only needed an alignment about two weeks ago when I first noticed the sensation, yet failed to...