Any changes from 17 to 21?

Torquem · 02-17-2021, 11:49 AM

I'm debating picking up a 2021 Zl1. I had a 17 Zl1 10 speed when they came out and loved it. Were there any changes made in the interim? If so, what all was changed? Thanks for any information!

Vigilante375 · 02-17-2021, 12:50 PM

Rear tail lights are different, infotainment is updated, no garage door buttons/homelink, driver and passenger seats fully recline and that's all I can think of.

Performance wise, there is no difference between a 2017 or 2021.

ScatPack · 02-17-2021, 12:58 PM

Quote:

Originally Posted by Vigilante375

Rear tail lights are different, infotainment is updated, no garage door buttons/homelink, driver and passenger seats fully recline and that's all I can think of.

Performance wise, there is no difference between a 2017 or 2021.

I would assume there is a laundry list of ECU updates to all different engine metrics. Also lots of parts that had TSBs were swapped out for their replacements. There might be hundreds of small engine/driveline changes for reliability or to correct early production short supply parts. You just dont know.

JSH · 02-17-2021, 01:35 PM

Yes, perhaps the most significant is that the TCM is locked with zero prospects of being unlocked, so no TCM edits, which matters a lot if you're a racer like me.

Z OH 6 · 02-17-2021, 01:48 PM

Rearview camera is a BIG feature update.

arpad_m · 02-17-2021, 02:17 PM

Quote:

Originally Posted by ScatPack

I would assume there is a laundry list of ECU updates to all different engine metrics. Also lots of parts that had TSBs were swapped out for their replacements. There might be hundreds of small engine/driveline changes for reliability or to correct early production short supply parts. You just dont know.

It's a toss-up, while some known issues are fixed, new components can also be "streamlined" and/or sourced from cheaper suppliers, which can introduce new failure modes (say, oil pump or valve springs). The brand new infotainment was also buggier, hopefully this has been mostly ironed out since 2019.

Along with the other changes already mentioned, there is a new tire fill alert function and several minor options are configurable (black lug nuts, red knee pads, carbon fiber shift knob etc.)

LT4Greg · 02-17-2021, 04:39 PM

Honestly, if you still have your ZL1 I would wait until the 2023s come out and see what differences/changes are!

02-17-2021, 11:49 AM	#1
Torquem Bannable Drives: 2017 Camaro ZL1 Join Date: Oct 2009 Location: Houston, TX Posts: 460 View My Garage	Any changes from 17 to 21? I'm debating picking up a 2021 Zl1. I had a 17 Zl1 10 speed when they came out and loved it. Were there any changes made in the interim? If so, what all was changed? Thanks for any information! __________________ One must forego the self to attain total spiritual creaminess, and avoid the chewy chunks of degradation 2017 ZL1 A10 - Hyper Blue Metallic Rotofab CAI, TM ported TB, AWE non res touring catback with PLP's

02-17-2021, 01:35 PM	#4
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,560	Yes, perhaps the most significant is that the TCM is locked with zero prospects of being unlocked, so no TCM edits, which matters a lot if you're a racer like me. __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

02-17-2021, 04:39 PM	#7
LT4Greg Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016 Location: Georgia Posts: 5,813	Honestly, if you still have your ZL1 I would wait until the 2023s come out and see what differences/changes are! __________________ ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.

02-17-2021, 12:50 PM	#2
Vigilante375 Drives: 2018 Camaro ZL1 Join Date: Aug 2018 Location: Georgia Posts: 1,370	Rear tail lights are different, infotainment is updated, no garage door buttons/homelink, driver and passenger seats fully recline and that's all I can think of. Performance wise, there is no difference between a 2017 or 2021.

02-17-2021, 01:48 PM	#5
Z OH 6 Drives: 2021 Red Hot ZL1 Join Date: Sep 2020 Location: Gapplebees Posts: 3,092	Rearview camera is a BIG feature update.

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