07-27-2020, 06:50 AM | #43 |
Drives: 18 ZL1 Convertible Join Date: Jun 2019
Location: NJ
Posts: 118
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07-27-2020, 02:33 PM | #44 |
Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
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No tune yet. Car has never been dynoed
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2017 ZL1 M6 Silver Ice Metallic
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07-27-2020, 03:31 PM | #45 |
Drives: 2020 Zl1 A10 Riverside Blue Join Date: Mar 2020
Location: NJ
Posts: 1,219
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09-08-2020, 02:22 AM | #46 |
Drives: 17 ZL1 6mt with PDR Join Date: Apr 2019
Location: Gilbert, AZ.
Posts: 169
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I am also currently shopping headers. I liked the CSP because it seems they took care of all the clearance issues, but I recently spoke with them and still no catted version on the horizon. Kooks 1 7/8" headers seem to be like a solid choice, but like you I also want cats. I've been getting a lot of push back from a few different installers about running the Kooks hi-flo cats on my ZL1. If green cats are the way to go (which is what the consensus is alluding to), and I don't want to spend $2100 for Kooks headers with green cats, then what? Well, I have an idea that I plan to execute. I'll let you know how it works. I've been speaking to Dyno Steve from RDP about selling my just the Kooks 1 7/8" headers and a universal green cat separately. Green cats are on the Kooks and RDP site for $390. The way I see it, no matter what I buy, someone is going to have to fabricate a link between the header cats and my AWE Touring catback exhaust. So? What's the difference in fabricating one more piece to have the green cat attach to the header? Bottom line, I believe I can buy the Kooks headers and universal 3" green cats for under $1500, shipped.
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Current Daily: 2017 ZL1 6mt in Black with PDR.
Esthetics: Nardo Grey wrap with original black accents throughout, complete Xpel ceramic coat, Diode Dynamics markers, Smoked GM tail & 3rd brake light, C7 Carbon 1LE style Spoiler in blk, ACS splash guards, blk'd out emblems. Variant Krypton wheels in Gloss black. Performance: AWE Touring catback exhaust with resonator, Rotofab dry intake, TM throttle body, Kooks 1 7/8 Headers with Green Cats, Advanced Fuel Dynamics Flex Fuel kit with e50 blend and dyno tuned. Current Family car (for the wifey): 2021 Audi SQ5 |
09-08-2020, 05:33 AM | #47 |
Drives: 2019 Zl1 Vert Join Date: Aug 2020
Location: Chicago
Posts: 23
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I'm running Kooks 2 inch LT with connection pipes No cats into a full Borla X pipe and Borla Attacks. I didn't even pay that for my full system.
I also have Magnuson 2650 103 snout and 80 mm pulley Brain Tooley stage two cam with Nick Williams 103 Tb Roto Fab Big Gulp My exhaust is so dam loud It not even fun to drive the car .Oh did I mention its a convertible two putting down 895 rwhp . Even in stealth mode and my mild to wild its ear piercing If I could do it over again I wouldn't have done long tube or I would have done cats and a different exhaust if I knew how to upload sound clip I would Just my 2 cents |
09-08-2020, 07:10 AM | #48 |
Drives: 2018 ZL1 Join Date: Oct 2019
Location: Texas
Posts: 83
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Broker, add a couple resonators inline and it will solve all your problems
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2018 ZL1 A10 - Rotofab Intake, LT5 TB, TSP Headers, ATI Balancer, 9.1 Lower Pulley, JMS BAP, Flex Fuel.
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09-08-2020, 07:14 AM | #49 |
Drives: 2018 ZL1 Join Date: Oct 2019
Location: Texas
Posts: 83
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Here is a pic
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2018 ZL1 A10 - Rotofab Intake, LT5 TB, TSP Headers, ATI Balancer, 9.1 Lower Pulley, JMS BAP, Flex Fuel.
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09-08-2020, 08:36 AM | #50 |
Drives: 2019 Zl1 Vert Join Date: Aug 2020
Location: Chicago
Posts: 23
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I have a convertible so I have 2 cross braces that the hardtops dont have I dont believe they will fit This photo is b4 lt just so you can see the two braces I had to use 6 washers on each corner of the brace to to make Borla fit This is a very common problem with Convertible |
09-08-2020, 09:23 AM | #51 | |
Account Suspended
Drives: '21 Wild Cherry ZL1 Join Date: Aug 2018
Location: WI
Posts: 2,082
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Quote:
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09-08-2020, 10:06 AM | #52 | |
Drives: 2019 Zl1 Vert Join Date: Aug 2020
Location: Chicago
Posts: 23
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Quote:
I think that's what I'm going to do call Borla and see if they can help with pricing in any way for just mufflers I have the same system on my Gt500 and it sounds amazing |
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09-08-2020, 10:51 AM | #53 |
Used to own a ZL1
Drives: '16 Z06 Join Date: Apr 2020
Location: TX
Posts: 279
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There is no performance gains to be made with a new catback, and seeing people say how loud it is...maybe I'll settle with just new headers.
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09-08-2020, 10:52 AM | #54 |
Drives: 2018 ZL1 Coupe NFG M6 Join Date: May 2017
Location: Nolensville, TN
Posts: 618
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The ATAK wouldn't be so bad if it had ANY depth to it, but to stay away from any drone they are super super high pitched. My ears are not a fan.
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1989 Forumla 350 WS6 <- High School
2000 Trans Am Firehawk <- After High School 2017 Colorado Z71 <- Daily 2018 ZL1 M6 <- Not Daily |
09-08-2020, 11:28 AM | #55 |
Account Suspended
Drives: '21 Wild Cherry ZL1 Join Date: Aug 2018
Location: WI
Posts: 2,082
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09-08-2020, 11:50 AM | #56 |
Drives: 2020 Zl1 A10 Riverside Blue Join Date: Mar 2020
Location: NJ
Posts: 1,219
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I'm going with ARH headers, hi flow cats and xpipe to NPP. Hopefully its not to loud.
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