ZL1 A10 - improve exhaust burble on decel?

alec_jan · 07-12-2020, 04:04 PM

I've had my ZL1 A10 for 3.5 years and still love the car. Coming from BMW I do miss the exhaust burble on deceleration / overrun. If using paddles there's small one around 2-3k RPM in 1st or 2nd, but otherwise none. Is there a tune or mod other than cat delete that improves this?

Thanks!

arpad_m · 07-12-2020, 04:35 PM

See this writeup by fellow member geaux_tigerss: https://www.camaro6.com/forums/showt...7#post10715827

URBAN LEGEND · 07-12-2020, 06:13 PM

Intake, 2nd cat delete and fuse removal will help.

*mlee* · 07-12-2020, 06:22 PM

The NPP exhaust flaps are designed to reduce this. As soon as you install a cat back exhaust you will get the desired result. Fuse pull or keeping it in open mode will help but catback is the way to go.

Yessa · 07-12-2020, 07:32 PM

Why attract unwanted attention in this day in age?

Yessa · 07-12-2020, 07:33 PM

Quote:

Originally Posted by mlee

As soon as you install a cat back exhaust you will get the desired result. Fuse pull or keeping it in open mode will help but catback is the way to go.

I totally disagree as the 6th Gen ZL1 stock exhaust was designed to be great out of the box.

*mlee* · 07-12-2020, 07:51 PM

Quote:

Originally Posted by Yessa

I totally disagree as the 6th Gen ZL1 stock exhaust was designed to be great out of the box.

Not sure what you're disagreeing about. I never said anything against the stock exhaust not being great.

Op has a question on how to get a certain decel pop going. I explained how to do that.

Walkure · 07-12-2020, 08:06 PM

I’ve got a ZL1 A10 with an AWE axle back. It gives you what you are looking for.

Yessa · 07-12-2020, 10:54 PM

Quote:

Originally Posted by Walkure

I’ve got a ZL1 A10 with an AWE axle back. It gives you what you are looking for.

How is your aftermarket AWE axel-back better than stock? Louder? More hp? Pics?

DemonZL1 · 07-12-2020, 11:10 PM

Quote:

Originally Posted by Yessa

How is your aftermarket AWE axel-back better than stock? Louder? More hp? Pics?

It gives off the popping that the original poster asked for.

JasonGofast · 07-13-2020, 12:42 AM

The 2019's+ apparently have more popping and burble tuned in. Maybe you could just have the car tuned similarly.

Gunkk · 07-13-2020, 01:26 AM

Quote:

Originally Posted by alec_jan

I've had my ZL1 A10 for 3.5 years and still love the car. Coming from BMW I do miss the exhaust burble on deceleration / overrun. If using paddles there's small one around 2-3k RPM in 1st or 2nd, but otherwise none. Is there a tune or mod other than cat delete that improves this?

Thanks!

Turn off the AC.

Walkure · 07-13-2020, 02:40 PM

Quote:

Originally Posted by Yessa

How is your aftermarket AWE axel-back better than stock? Louder? More hp? Pics?

No pictures handy at the moment, but yea, it looks better. Black chrome tips versus stock chrome.
It is most definitely louder. Nice burble on decel.
No hp or performance gain. Just improved sound and looks.

Cleancoupe · 07-13-2020, 07:00 PM

Coming from an LS3 with headers I was pretty disappointed with the decel pop from the stock LT4. Some people love it, other people hate it. I have an M6 and would get a little bit of decel pop with the factory exhaust. I’ve added an awe touring cat back non resonated with performance link pipes and get a lot of decel pop now. Especially when when the car is cold. Cold start ups are very menacing now!

07-12-2020, 04:04 PM	#1
alec_jan Drives: 2017 ZL1, 2013 BMW 135i Join Date: May 2017 Location: Los Angeles Posts: 51	ZL1 A10 - improve exhaust burble on decel? I've had my ZL1 A10 for 3.5 years and still love the car. Coming from BMW I do miss the exhaust burble on deceleration / overrun. If using paddles there's small one around 2-3k RPM in 1st or 2nd, but otherwise none. Is there a tune or mod other than cat delete that improves this? Thanks!

07-12-2020, 04:35 PM	#2
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,565 View My Garage	See this writeup by fellow member geaux_tigerss: https://www.camaro6.com/forums/showt...7#post10715827 __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

07-12-2020, 06:13 PM	#3
URBAN LEGEND Drives: 20 X3M CP & 19 ZL1 1LE A10 Join Date: Jun 2013 Location: Brenham, TX Posts: 3,517	Intake, 2nd cat delete and fuse removal will help. __________________ 🔺22 RS E TRON GT 🔺21 Model S Plaid

07-12-2020, 06:22 PM	#4
mlee CamaroFans.com Drives: ZLE & ZR2 Join Date: Oct 2008 Location: Conroe, TX Posts: 37,486 View My Garage	The NPP exhaust flaps are designed to reduce this. As soon as you install a cat back exhaust you will get the desired result. Fuse pull or keeping it in open mode will help but catback is the way to go. __________________

07-12-2020, 07:32 PM	#5
Yessa Account Suspended Drives: 2015 Camaro Z/28 Join Date: May 2019 Location: FLORIDA Posts: 222	Why attract unwanted attention in this day in age?

07-12-2020, 08:06 PM	#8
Walkure Drives: '17 ZL1 A10 Vert Join Date: Mar 2017 Location: SW Florida Posts: 375	I’ve got a ZL1 A10 with an AWE axle back. It gives you what you are looking for.

07-13-2020, 12:42 AM	#11
JasonGofast Used to own a ZL1 Drives: '16 Z06 Join Date: Apr 2020 Location: TX Posts: 279	The 2019's+ apparently have more popping and burble tuned in. Maybe you could just have the car tuned similarly.

07-13-2020, 07:00 PM	#14
Cleancoupe Drives: 18 ZL1 1LE Join Date: Apr 2013 Location: Florida Posts: 703	Coming from an LS3 with headers I was pretty disappointed with the decel pop from the stock LT4. Some people love it, other people hate it. I have an M6 and would get a little bit of decel pop with the factory exhaust. I’ve added an awe touring cat back non resonated with performance link pipes and get a lot of decel pop now. Especially when when the car is cold. Cold start ups are very menacing now!

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