High Flow Cats
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,098
From: Fulshear, TX
Supporting Vendor
Joined: Nov 2015
Posts: 1,242
Likes: 275
From: Orange County, NY
@Kracka bought his Corsa sport cats from me!
I do have them in stock ready to ship no lead time no nothing will ship same day or next day at the latest:
Corsa Sport Cats for C8 Corvette 16234
I'm a fully authorized dealer for Corsa message me for your discount code. You can also call or text for fastest service and to discuss all options and alternatives 201-575-0861.
-Ciro
I do have them in stock ready to ship no lead time no nothing will ship same day or next day at the latest:
Corsa Sport Cats for C8 Corvette 16234
I'm a fully authorized dealer for Corsa message me for your discount code. You can also call or text for fastest service and to discuss all options and alternatives 201-575-0861.
-Ciro
__________________
http://www.corvetteexhaustsystems.com
845-476-8881
sales@corvetteexhaustsystems.com
201-575-0861 (cell to call or text)
Your Ultimate Resource For Headers, Exhaust Systems & more for Corvette! I carry Corsa, Kooks, ARH, Borla, Billy Boat, Akrapovic, Capristo & Much More
http://www.corvetteexhaustsystems.com
845-476-8881
sales@corvetteexhaustsystems.com
201-575-0861 (cell to call or text)
Your Ultimate Resource For Headers, Exhaust Systems & more for Corvette! I carry Corsa, Kooks, ARH, Borla, Billy Boat, Akrapovic, Capristo & Much More
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,098
From: Fulshear, TX
@Kracka bought his Corsa sport cats from me!
I do have them in stock ready to ship no lead time no nothing will ship same day or next day at the latest:
Corsa Sport Cats for C8 Corvette 16234
I'm a fully authorized dealer for Corsa message me for your discount code. You can also call or text for fastest service and to discuss all options and alternatives 201-575-0861.
-Ciro
I do have them in stock ready to ship no lead time no nothing will ship same day or next day at the latest:
Corsa Sport Cats for C8 Corvette 16234
I'm a fully authorized dealer for Corsa message me for your discount code. You can also call or text for fastest service and to discuss all options and alternatives 201-575-0861.
-Ciro
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,098
From: Fulshear, TX
Corsa (and all their competitors that use the same GESi G-Sport GEN2 S-Wound 400-cell cores) all claim +12whp and my dyno results lined up with that based on my mods at the time. There was a noticable seat-of-the-pants improvement, somewhere between that of my intake and headers. I'm going on 2 years with them installed without issues or codes. Happy to pull the exact mileage & time if desired.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette
Pouria Savadkouei
Le Mans Master
Joined: Oct 2005
Posts: 5,019
Likes: 855
From: Tampa Florida
Corsa (and all their competitors that use the same GESi G-Sport GEN2 S-Wound 400-cell cores) all claim +12whp and my dyno results lined up with that based on my mods at the time. There was a noticable seat-of-the-pants improvement, somewhere between that of my intake and headers. I'm going on 2 years with them installed without issues or codes. Happy to pull the exact mileage & time if desired.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,098
From: Fulshear, TX
The 400-cell S-wound flows about like a traditional 300-cell, but a 200-cell will be louder and flow more, regardless. You'll also have a higher likelihood of triggering a CEL. The cheap generic 200-cell cores sold by 2M and others are worthless, just get cat-deletes at that point (I suggest EOS). If you want a real 200-cell, you're looking at some serious bucks with the German HJS cores vs. the North American GESI 400-cell cores. While the HJS cores are approved under European standards, they are technically not 49-state EPA certified.
Burning Brakes
Joined: Feb 2009
Posts: 826
Likes: 359
Hi flo, w cats, quality ones like the 200 cell German units used on Ferraris, Lamborghinis, etc., produce a noticeable increas in hp. If I had installen them on my 2019 Shelby GT350, same engine design as Z06, just larger engine, the increase would be atleast 25 rwhp. Not cheap, but effective.
Purveyor of Common Sense
Joined: Apr 2017
Posts: 1,159
Likes: 617
From: Chicago Suburbs IL
St. Jude Donor '19
I was looking at this ARH video, and the guy said they installed "aftermarket" 300 CEL sport cats with the ARH's and it gave no measurable gains, and said they are not worth it. I have the 2M 200 CEL sport cats and Paragon headers yet to be installed. I'm just wondering if the sport cats are worth it. For the record, I'm not spending $1500-3k on sport cats either.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,098
From: Fulshear, TX
I was looking at this ARH video, and the guy said they installed "aftermarket" 300 CEL sport cats with the ARH's and it gave no measurable gains, and said they are not worth it. I have the 2M 200 CEL sport cats and Paragon headers yet to be installed. I'm just wondering if the sport cats are worth it. For the record, I'm not spending $1500-3k on sport cats either.
https://www.youtube.com/watch?v=9hCPLsio59U&t=101s
https://www.youtube.com/watch?v=9hCPLsio59U&t=101s
Purveyor of Common Sense
Joined: Apr 2017
Posts: 1,159
Likes: 617
From: Chicago Suburbs IL
St. Jude Donor '19
I don't understand what you're trying to say. Yes, they're trying 1 3/4", 1 /7/8", and 2" headers to see which had the highest gains. He then comments on the 300 CEL sport cats and clearly said they really didn't add any additional power/gains. He also said that may be different with an aftermarket exhaust, but with the stock NPP, they do nothing. What does he gain by lying about them?
Racer
Joined: Feb 2020
Posts: 384
Likes: 571
From: Philly
I can speak about this with insight, it's my car in the video. I raced and data logged the car extensively on the track and the dyno since new in 2020. Up until last year I was running the stock cats with all the mods you could think to add. I went as quick as 10.20@133+ on the stock tune and factory cats, I reached out to Nick @ARH to try those prototype cats on my car to improve my e.t.
It was a different day and a different time but the DA was comparable and I gave the Gesi cats a try. I used the 1/8 to 1/4 data to eliminate some starting line variables like 60' and any traction issues and took data from my 7 best passes from each day. I saw Zero lowering of time from mid track to finish and a 1 mph gain in speed. The weight savings is nice and I do still have them on the car ( I like the sound a lot better) but I was disappointed in the results. The factory cat is very very good.
Their is a reason why you can't buy aftermarket cats from ARH, he won't sell a product that doesn't perform.
I don't knock companies and their claims of gains, this is just my experience.
It was a different day and a different time but the DA was comparable and I gave the Gesi cats a try. I used the 1/8 to 1/4 data to eliminate some starting line variables like 60' and any traction issues and took data from my 7 best passes from each day. I saw Zero lowering of time from mid track to finish and a 1 mph gain in speed. The weight savings is nice and I do still have them on the car ( I like the sound a lot better) but I was disappointed in the results. The factory cat is very very good.
Their is a reason why you can't buy aftermarket cats from ARH, he won't sell a product that doesn't perform.
I don't knock companies and their claims of gains, this is just my experience.
Purveyor of Common Sense
Joined: Apr 2017
Posts: 1,159
Likes: 617
From: Chicago Suburbs IL
St. Jude Donor '19
I can speak about this with insight, it's my car in the video. I raced and data logged the car extensively on the track and the dyno since new in 2020. Up until last year I was running the stock cats with all the mods you could think to add. I went as quick as 10.20@133+ on the stock tune and factory cats, I reached out to Nick @ARH to try those prototype cats on my car to improve my e.t.
It was a different day and a different time but the DA was comparable and I gave the Gesi cats a try. I used the 1/8 to 1/4 data to eliminate some starting line variables like 60' and any traction issues and took data from my 7 best passes from each day. I saw Zero lowering of time from mid track to finish and a 1 mph gain in speed. The weight savings is nice and I do still have them on the car ( I like the sound a lot better) but I was disappointed in the results. The factory cat is very very good.
Their is a reason why you can't buy aftermarket cats from ARH, he won't sell a product that doesn't perform.
I don't knock companies and their claims of gains, this is just my experience.
It was a different day and a different time but the DA was comparable and I gave the Gesi cats a try. I used the 1/8 to 1/4 data to eliminate some starting line variables like 60' and any traction issues and took data from my 7 best passes from each day. I saw Zero lowering of time from mid track to finish and a 1 mph gain in speed. The weight savings is nice and I do still have them on the car ( I like the sound a lot better) but I was disappointed in the results. The factory cat is very very good.
Their is a reason why you can't buy aftermarket cats from ARH, he won't sell a product that doesn't perform.
I don't knock companies and their claims of gains, this is just my experience.
Racer
Joined: Mar 2022
Posts: 269
Likes: 220
From: Naperville, IL
Purveyor of Common Sense
Joined: Apr 2017
Posts: 1,159
Likes: 617
From: Chicago Suburbs IL
St. Jude Donor '19
