[Dmoney2SS]

Found a set of bc forged wheels 20x9.5 +20 offset and 20x11 +40 offset, would those offsets work for our cars? The wheels are coming off of a bmw M4 I believe and my car is a 2022 2SS

[LTfun]

Should fit nicely. 20x10 +22 is near the limit of what you can fit in the front (on non ZL1 front fenders), without a few tricks. So the front should be good with a little bit of room to spare. The rears look good too. I think stock ZL1 (same rear fenders as everyone) is 20x11 +43 so you'd technically have 3mm more poking out but that should be fine. Do consider tire sizes though as that will also come into play. Lastly don't forget that while both BMW and our Camaros are a 5x120mm bolt pattern, that center bore is probably not the same. Our cars have a CB of 66.9 (67.1 depending on who you ask), so as long as the BMW wheels have larger CB you can purchase hub centric rings to mate them up, no problem.

[Msquared]

Everything stated above is accurate. Just make sure the center pilot bore is big enough. You don't need hubcentric rings: the tapered lug nuts and seats are what locate the wheels on these cars.

[Dmoney2SS]

Originally Posted by LTfun

Should fit nicely. 20x10 +22 is near the limit of what you can fit in the front (on non ZL1 front fenders), without a few tricks. So the front should be good with a little bit of room to spare. The rears look good too. I think stock ZL1 (same rear fenders as everyone) is 20x11 +43 so you'd technically have 3mm more poking out but that should be fine. Do consider tire sizes though as that will also come into play. Lastly don't forget that while both BMW and our Camaros are a 5x120mm bolt pattern, that center bore is probably not the same. Our cars have a CB of 66.9 (67.1 depending on who you ask), so as long as the BMW wheels have larger CB you can purchase hub centric rings to mate them up, no problem.

By any chance, where can I find the offsets for those wheels? I have a set of ZL1 wheels on right now, what are the front offsets? I know the rear is +43 but I’m not sure of the fronts

[LTfun]

Originally Posted by Dmoney2SS

By any chance, where can I find the offsets for those wheels? I have a set of ZL1 wheels on right now, what are the front offsets? I know the rear is +43 but I’m not sure of the fronts

I'm sure it's been posted somewhere here before. I don't have a ZL1 but I'm pretty sure the fronts are 20x10 +23. I think the tire is 285/30 which puts the overall diameter at 26.73 inches. Also width wise, it is inset from the hub 162.7mm and 116.7mm outset or poke from the hub. Hope this helps.

[Msquared]

Originally Posted by Dmoney2SS

By any chance, where can I find the offsets for those wheels? I have a set of ZL1 wheels on right now, what are the front offsets? I know the rear is +43 but I’m not sure of the fronts

The stock SS 1LE and non-1LE ZL1 wheels are 20x10 with 20mm offset. The stock tire is indeed 285/30/20. The rears are 20x11 with 43mm offset and 305/30/20tires.

Edited after mistakes were pointed out below.

[BatMobileLT1]

Originally Posted by Msquared

The stock SS 1LE and non-1LE ZL1 wheels are 20x10 with 20mm offset. The stock tire is indeed 285/30/20. The rears are 201x11 with 43mm offset and 305/30/19 tires.

Just note for clarity, I think there are minor typos on last line on rear tire info, should be:
20 x 11
305/30/20 tires

[Msquared]

Originally Posted by BatMobileLT1

Just note for clarity, I think there are minor typos on last line on rear tire info, should be:
20 x 11
305/30/20 tires

Dammit! You're right, of course. I corrected the post above to avoid causing more confusion. Thanks for catching those.