C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Speed Engineering header install.

Thread Tools
 
Search this Thread
 
Old Jun 12, 2020 | 04:58 AM
  #1  
Mcrider's Avatar
Mcrider
Thread Starter
Le Mans Master
 
Joined: Mar 2018
Posts: 7,074
Likes: 1,041
From: The GREAT STATE of IOWA!
Default Speed Engineering header install.

Finally got the headers installed on my GS A6 and the difference is noticeable immediately and in a huge way.

After LOTS of research and a number of years drag racing. My car isn't going to be drag raced, but I wanted to obtain some easy horsepower and with it the performance gains. My goal was to use the axle back NPP exhaust system mated to the SE system.

I chose the Speed Engineering headers and X-pipe kit. My choice wasn't based primarily on price, but common sense and experience. The SE's use 304 Stainless which is the standard in the industry no matter how much the price of the product is. What sold me on them were the reviews online from the actual users. I don't think I ever saw a bad review, and in fact most people really liked the product.

We had a lift, which made a world of difference and the installation was unbelievably simple and straightforward. We took it slow and methodically and it took less time to put the system in than it did to get the old one out. EVERYTHING lined up, there was no "tweaking" that needed to be done and we laughed at how the ball peen hammer, a long time staple in header installation was never needed. Who ever designed this system is a superstar engineer as they easily slid in from the bottom and the clearance was amazing. The only issue I didn't like were the clamps sent with the kit and had already ordered sleeve clamps to eliminate any potential leaks.

Installing the headers after removing the original system took about 2 hours and went unbelievably smooth. I did the work at a Do It Yourself garage where other people were working on their own cars, and of course, with a Corvette on a lift, it generated a lot of interest, and comments.

The results? The difference in sound is exactly what I wanted. The Corvette now sounds like I think a Vette should sound. At idle, a bit louder, with more authority, and when you hit the throttle, it lets you know immediately it wants to get up and run, and it does.

I think I picked up about 40-50 horsepower and now it's onto Karl Chevrolet Performance and a dyno tune where I think I can wring another 30 or so horsepower out of it.

All in all, I HIGHLY RECOMMEND you give Speed Engineering a look when going after headers Their product is top notch and the pricing is unbelievable. What I saved on the headers is paying for the dyno tune!

Reply
Old Jun 12, 2020 | 07:40 AM
  #2  
BadAV's Avatar
BadAV
Race Director
 
Joined: Jul 2005
Posts: 12,021
Likes: 3,556
From: Central MO
Default

Originally Posted by Mcrider
Finally got the headers installed on my GS A6 and the difference is noticeable immediately and in a huge way.

After LOTS of research and a number of years drag racing. My car isn't going to be drag raced, but I wanted to obtain some easy horsepower and with it the performance gains. My goal was to use the axle back NPP exhaust system mated to the SE system.

I chose the Speed Engineering headers and X-pipe kit. My choice wasn't based primarily on price, but common sense and experience. The SE's use 304 Stainless which is the standard in the industry no matter how much the price of the product is. What sold me on them were the reviews online from the actual users. I don't think I ever saw a bad review, and in fact most people really liked the product.

We had a lift, which made a world of difference and the installation was unbelievably simple and straightforward. We took it slow and methodically and it took less time to put the system in than it did to get the old one out. EVERYTHING lined up, there was no "tweaking" that needed to be done and we laughed at how the ball peen hammer, a long time staple in header installation was never needed. Who ever designed this system is a superstar engineer as they easily slid in from the bottom and the clearance was amazing. The only issue I didn't like were the clamps sent with the kit and had already ordered sleeve clamps to eliminate any potential leaks.

Installing the headers after removing the original system took about 2 hours and went unbelievably smooth. I did the work at a Do It Yourself garage where other people were working on their own cars, and of course, with a Corvette on a lift, it generated a lot of interest, and comments.

The results? The difference in sound is exactly what I wanted. The Corvette now sounds like I think a Vette should sound. At idle, a bit louder, with more authority, and when you hit the throttle, it lets you know immediately it wants to get up and run, and it does.

I think I picked up about 40-50 horsepower and now it's onto Karl Chevrolet Performance and a dyno tune where I think I can wring another 30 or so horsepower out of it.

All in all, I HIGHLY RECOMMEND you give Speed Engineering a look when going after headers Their product is top notch and the pricing is unbelievable. What I saved on the headers is paying for the dyno tune!
70-80 hp gain from headers and a tune? I don't think so. Maybe 40 total.
Reply
Old Jun 12, 2020 | 02:11 PM
  #3  
SixAddict's Avatar
SixAddict
Melting Slicks
Supporting Lifetime
Liked
Loved
Community Favorite
Top Answer: 5
 
Joined: Feb 2017
Posts: 3,285
Likes: 1,282
From: Phoenix, AZ to Quakertown, PA.
C6 of Year Finalist (appearance mods) 2019
Default

I too went with SE long tube headers for the same reason you did, I thought 304 stainless is 304 stainless what is so dam pricey about the other manufacturers ? Fitment was great and I’ve had them apart and back together several times for maintenance, trans cable and changing npp to a cat back system. Yes the clamps get lazy after a few R and R but they are only a couple bucks new.

Reply

Get notified of new replies

To Speed Engineering header install.





All times are GMT -4. The time now is 07:50 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE