Now THIS is how a ZL1 Should Sound!! - Page 5

XXX ZL1 · 09-02-2018, 03:22 PM

Sounds great!

Agent K · 09-02-2018, 04:48 PM

Sounds awesome, great job!!! I hope mine sounds as good when I get my ARH headers and x-pipe installed next week.

rmh3 · 09-10-2018, 04:13 PM

I got the Kooks axle-back installed today. I must say, it sounds so much better than the stock. But driving it home, it does have a slight drone on the freeway...noticeable vs. stock.

Driving it around the city streets you will hear and feel that drone. Probably can't have a decent conversation with the radio on while driving for sure. Otherwise, I am stoked. It sounds great and under acceleration, sounds mean

Sound from outside:
https://youtu.be/otkq5eOrQ7o

Sound from inside:
https://youtu.be/y1StG1QRLtM

VAZL1 · 09-10-2018, 06:13 PM

Quote:

Originally Posted by rmh3

I got the Kooks axle-back installed today. I must say, it sounds so much better than the stock. But driving it home, it does have a slight drone on the freeway...noticeable vs. stock.

Driving it around the city streets you will hear and feel that drone. Probably can't have a decent conversation with the radio on while driving for sure. Otherwise, I am stoked. It sounds great and under acceleration, sounds mean

Sound from outside:
https://youtu.be/otkq5eOrQ7o

Sound from inside:
https://youtu.be/y1StG1QRLtM

Sounds awesome! Ooh-rah!

mdmoore23 · 09-10-2018, 09:19 PM

Quote:

Originally Posted by rmh3

I got the Kooks axle-back installed today. I must say, it sounds so much better than the stock. But driving it home, it does have a slight drone on the freeway...noticeable vs. stock.

Driving it around the city streets you will hear and feel that drone. Probably can't have a decent conversation with the radio on while driving for sure. Otherwise, I am stoked. It sounds great and under acceleration, sounds mean

Sound from outside:
https://youtu.be/otkq5eOrQ7o

Sound from inside:
https://youtu.be/y1StG1QRLtM

I honestly have no measure of what amount of drone is considered bad as long as my head isn't hurting. But with mine I can definitely carry on a conversation with my wife with the radio on. From hearing and experience different exhausts on Chevy cars (Camaros and Vettes), I have concluded that you cannot achieve this type of deep exhaust note without some level of drone. Corsa and all the others that are so focused on tuning it out do so at the cost of attaining a truly different sound like the Kooks has. Follow someone while they drive your car (if there's someone you can trust), or let them do some fly bys while you watch. This kit has no competition for sound and price, as long as dual mode isn't desired. Glad to see people installing this system.

rmh3 · 09-10-2018, 10:58 PM

Quote:

Originally Posted by mdmoore23

I honestly have no measure of what amount of drone is considered bad as long as my head isn't hurting. But with mine I can definitely carry on a conversation with my wife with the radio on. From hearing and experience different exhausts on Chevy cars (Camaros and Vettes), I have concluded that you cannot achieve this type of deep exhaust note without some level of drone. Corsa and all the others that are so focused on tuning it out do so at the cost of attaining a truly different sound like the Kooks has. Follow someone while they drive your car (if there's someone you can trust), or let them do some fly bys while you watch. This kit has no competition for sound and price, as long as dual mode isn't desired. Glad to see people installing this system.

The drone isn't bothersome to me. But I do hear it. What's great is that on freeway drives, it's not that much noticeable. It's only when I'm in 1st through 4th.
But like your original post...this is what this car should sound like. I love it and glad I got it changed out (due to you sharing it).

rmh3 · 09-10-2018, 11:00 PM

Quote:

Originally Posted by VAZL1

Sounds awesome! Ooh-rah!

SFMF!

Vulcan1 · 09-11-2018, 08:00 AM

Call Pro-Fab Performance out of Lexington KY. Due to MAP pricing this product can’t be listed for under retail but it can be sold for under and they offered free shipping.

staples87 · 09-11-2018, 09:37 AM

The exhaust sounds great! Worst case, you could always add some J-pipes before or after the mufflers to reduce the drone. I was going to go this route myself, but ended up ordering the Mishimoto Axleback because they had one on the shelf and I ended up getting a good deal. If it doesn't have the sound I'm looking for, then I'm returning / selling and going this route.

MikeEM1 · 09-12-2018, 12:17 PM

Sounds great. I was thinking about the muffler delete one.

collinms · 10-30-2018, 10:51 PM

Installed mine today. The videos don't do it justice. It's very loud and sounds real real good. Very similar to a corvette with B&B bullets.

mdmoore23 · 10-31-2018, 12:11 AM

Quote:

Originally Posted by collinms

Installed mine today. The videos don't do it justice. It's very loud and sounds real real good. Very similar to a corvette with B&B bullets.

Yes. This exhaust definitely is overlooked. Dont know why but in my opinion it's the best out there for the 6th gen, unless someone just can't live without npp function.

JonDaddy82 · 10-31-2018, 03:45 PM

I get my Kooks axle back and Borla 60606 installed on the 14th of next month, very excited. Been driving around with the fuse pulled, and it's really not loud at all, so this should sound real nice all said and done.

Chocolate Apocalypse · 10-31-2018, 05:35 PM

Installed my Kooks axle-back and Borla 60606 a few weeks ago and love em. There is a bit of drone but I actually don't mind it.

09-02-2018, 04:48 PM	#58
Agent K Drives: 2017 ZL1 6MT Join Date: Feb 2018 Location: Memphis, TN Posts: 190	Sounds awesome, great job!!! I hope mine sounds as good when I get my ARH headers and x-pipe installed next week. __________________ 2017 ZL1 Arctic Blue Metallic / 6MT / sunroof / NAV / PDR / RotoFab CAI + dry filter / Tony Mamo TB V1 / Skip Shift Eliminator / Hurst Short Throw Shifter / ZL1 floor mats / Dead Pedal cover (to match other pedals) / ARH Catless 1-7/8" headers + ARH X-pipe + AWE Touring Axle-Back / Diode Dynamic smoked side markers / American Authority tow hook

09-11-2018, 08:00 AM	#64
Vulcan1 Drives: 2018 Hyper Metallic Blue ZL-1 M6 Join Date: Aug 2017 Location: Lexington KY Posts: 75	Call Pro-Fab Performance out of Lexington KY. Due to MAP pricing this product can’t be listed for under retail but it can be sold for under and they offered free shipping. __________________ 2018 ZL-1 Hyper-blue, Heads, Cam, Exhaust, Pulley, CAI, ported TB. 720HP/715TQ.

09-12-2018, 12:17 PM	#66
MikeEM1 Drives: Tracks: 18' ZL1 1LE Join Date: Mar 2018 Location: Irvine, CA --> ATX Posts: 141	Sounds great. I was thinking about the muffler delete one. __________________ 18' ZL1 1LE Red Hot track toy Castrol SRF Ported TB/Rotofab dry intake AWE Track w/PLP APR GTC300 wing / Singular Endplates ASC Splitter / PA tunnels MFR Engineering Custom Diffuser Race Louvers Fender Vents APEX SM10 & ARC8 For sale: 2018 OEM ZL1 1LE Wing 12' Nissan GT-R SOLD

10-31-2018, 03:45 PM	#69
JonDaddy82 Drives: 2018 ZL1 Coupe NFG M6 Join Date: May 2017 Location: Nolensville, TN Posts: 618	I get my Kooks axle back and Borla 60606 installed on the 14th of next month, very excited. Been driving around with the fuse pulled, and it's really not loud at all, so this should sound real nice all said and done. __________________ 1989 Forumla 350 WS6 <- High School 2000 Trans Am Firehawk <- After High School 2017 Colorado Z71 <- Daily 2018 ZL1 M6 <- Not Daily

10-31-2018, 05:35 PM	#70
Chocolate Apocalypse Full Fledged Member Drives: '18 1SS 1LE Join Date: Mar 2008 Location: Las Vegas Posts: 346 View My Garage	Installed my Kooks axle-back and Borla 60606 a few weeks ago and love em. There is a bit of drone but I actually don't mind it. __________________ '18 1SS 1LE - DD '72 Cutlass - LSA topped 370" LS2

09-02-2018, 03:22 PM	#57
XXX ZL1 Drives: 2024 ZL1 M6 Join Date: Sep 2018 Location: Pace FL Posts: 421	Sounds great!

09-10-2018, 04:13 PM	#59
rmh3 Semper Fi! Drives: 2018 ZL1 Join Date: Jun 2018 Location: Happy Valley/OR Posts: 69	I got the Kooks axle-back installed today. I must say, it sounds so much better than the stock. But driving it home, it does have a slight drone on the freeway...noticeable vs. stock. Driving it around the city streets you will hear and feel that drone. Probably can't have a decent conversation with the radio on while driving for sure. Otherwise, I am stoked. It sounds great and under acceleration, sounds mean Sound from outside: https://youtu.be/otkq5eOrQ7o Sound from inside: https://youtu.be/y1StG1QRLtM

09-11-2018, 09:37 AM	#65
staples87 Drives: 2017 Camaro ZL1 Join Date: Aug 2018 Location: Bel Air, MD Posts: 319	The exhaust sounds great! Worst case, you could always add some J-pipes before or after the mufflers to reduce the drone. I was going to go this route myself, but ended up ordering the Mishimoto Axleback because they had one on the shelf and I ended up getting a good deal. If it doesn't have the sound I'm looking for, then I'm returning / selling and going this route.

10-30-2018, 10:51 PM	#67
collinms Drives: 2017 ZL1 A10 Summit White Join Date: Apr 2018 Location: Cumming, Georgia Posts: 511	Installed mine today. The videos don't do it justice. It's very loud and sounds real real good. Very similar to a corvette with B&B bullets.

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