C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Highflo Performance Exhaust

Thread Tools
 
Search this Thread
 
Old Aug 11, 2023 | 06:46 AM
  #1  
Mrshaund79's Avatar
Mrshaund79
Thread Starter
Advanced
Liked
 
Joined: Jul 2021
Posts: 68
Likes: 16
From: Michigan
Default Highflo Performance Exhaust

https://highfloperformance.com/pages/contact-us Anyone have any experience with these guys? I had my heart set on Corsa but man the price lol.
Reply
Old Aug 11, 2023 | 10:32 AM
  #2  
yakmastermax's Avatar
yakmastermax
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2011
Posts: 1,925
Likes: 441
From: Albuquerque NM
Default

Their stuff looks interesting and the price is right.

I wish their rectangular tips were larger and closer to the look of the factory LTx rectangular tips. The skinny chrome rectangles just never looked good to me.

I can't exactly tell but the system appears to be an X pipe then a pair of chambered muffler sections then right before the tailpipe itself there appear to be some mini bullet mufflers or resonator things?

Overall I am curious how loud the system is.

Also they don't spec the exhaust pipe diameter... I find the lack of their providing that kind of simple technical detail annoying... to say the least.

But the stuff looks neat, I would like to try it out.
Reply
Old Aug 14, 2023 | 05:22 PM
  #3  
GREGGPENN's Avatar
GREGGPENN
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Default

Originally Posted by yakmastermax
Their stuff looks interesting and the price is right.

I wish their rectangular tips were larger and closer to the look of the factory LTx rectangular tips. The skinny chrome rectangles just never looked good to me.

I can't exactly tell but the system appears to be an X pipe then a pair of chambered muffler sections then right before the tailpipe itself there appear to be some mini bullet mufflers or resonator things?

Overall I am curious how loud the system is.

Also they don't spec the exhaust pipe diameter... I find the lack of their providing that kind of simple technical detail annoying... to say the least.

But the stuff looks neat, I would like to try it out.
Seriously doubt chambered exhaust would flow very well. THE PIPES AREN'T STRAIGHT AND SMOOTH!

Rubber weatherstrip (which is the other thing returning on a C4 search) is likely sourced from other common vendors. So....can't say I see anything interesting on their site.
Reply
Old Aug 15, 2023 | 10:32 AM
  #4  
Riley93C4's Avatar
Riley93C4
Instructor
All Eyes On Me
 
Joined: Apr 2022
Posts: 142
Likes: 48
From: Central NY State
Default

I have one of their systems with the C6 tips in a box in my garage, Plan on installing it on my 93 in the next week. I'll report back. There are some Youtube clips from other guys on C4s.
Reply
Old Aug 15, 2023 | 10:58 AM
  #5  
Mrshaund79's Avatar
Mrshaund79
Thread Starter
Advanced
Liked
 
Joined: Jul 2021
Posts: 68
Likes: 16
From: Michigan
Default

Originally Posted by Riley93C4
I have one of their systems with the C6 tips in a box in my garage, Plan on installing it on my 93 in the next week. I'll report back. There are some Youtube clips from other guys on C4s.
Yeah i wrote them and asked about a video and they sent these back

https://www.youtube.com/watch?time_c...ature=emb_logo
Reply
Old Aug 15, 2023 | 03:33 PM
  #6  
billschroeder5842's Avatar
billschroeder5842
Zen Vet Master Level VII
Supporting Gold
Veteran: Navy
10 Year Member
Liked
Loved
 
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Default

Originally Posted by Mrshaund79
I had my heart set on Corsa but man the price lol.
Yes and cry only once........
Reply
Old Aug 16, 2023 | 07:07 PM
  #7  
Riley93C4's Avatar
Riley93C4
Instructor
All Eyes On Me
 
Joined: Apr 2022
Posts: 142
Likes: 48
From: Central NY State
Default

Unboxed mine tonight, nice quality work on this. Plan on installing it the next couple days.



Reply
Old Aug 17, 2023 | 01:02 PM
  #8  
yakmastermax's Avatar
yakmastermax
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2011
Posts: 1,925
Likes: 441
From: Albuquerque NM
Default

Looks good!
looking forward to hearing your reports on sound, volume, and drone.

What diameter are the pipes?

Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Aug 19, 2023 | 06:35 PM
  #9  
Riley93C4's Avatar
Riley93C4
Instructor
All Eyes On Me
 
Joined: Apr 2022
Posts: 142
Likes: 48
From: Central NY State
Default

Installed it today. Went together very nicely. Here’s a pic and video. Sorry for the dust! It sounds awesome driving it. Some drone but not a bad one at all, music to my ears driving! Now it sounds like a Corvette!




Reply

Get notified of new replies

To Highflo Performance Exhaust





All times are GMT -4. The time now is 09:14 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE