Any power gains with ARH headers?
10-01-2016, 11:45 AM
#21
If you are in the Dallas area, find a different shop. They are full of crap. They are trying to sell you on not needed products. My base C7 picked up both hp and torque with the midlength ARH install. You are more than free to have Matt @ 21st Century pull up my before and after dyno pulls. In fact, there is a thread in the C7 tech section with all the numbers posted.
10-01-2016, 12:12 PM
#22
Burning Brakes
If you are in the Dallas area, find a different shop. They are full of crap. They are trying to sell you on not needed products. My base C7 picked up both hp and torque with the midlength ARH install. You are more than free to have Matt @ 21st Century pull up my before and after dyno pulls. In fact, there is a thread in the C7 tech section with all the numbers posted.
They didn't sell me on anything. In fact they told me not to waste my money when I asked about buying a set of AR headers. The minimal gain is not worth the $$
And my shop is great, so I'll stick with them.
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AdrenalineJunkiee (01-13-2020)
10-01-2016, 12:13 PM
#23
Burning Brakes
No it will not. If you think you'll do heads/cam later, then go for it. But for what you got, skip em
10-01-2016, 12:16 PM
#24
Burning Brakes
If you did tune, you're warranty is no good.
You have no clue dude. Believe what you want.
OP, I have same mods as you and factory manifolds flow just fine.
10-01-2016, 12:25 PM
#25
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St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
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I guess we'll find out once I get the car on the dyno. Till then, all is speculation.
10-01-2016, 01:01 PM
#27
Safety Car
I haven't put headers on my C7Z, and probably won't. However we put two different brands of headers on C6Z's and the gains were definitely not worth the cost. Most people post their gains from headers and a tune, and credit the gains to the headers when, in fact, it's the tune that did the heavy lifting.
Both our C6Z's were tuned prior to having the headers installed, then we retuned to optimize the results with the headers. Brand X headers gained 4 RWHP. Brand Y headers gained 6 RWHP. Very disappointing for the money spent.
Both our C6Z's were tuned prior to having the headers installed, then we retuned to optimize the results with the headers. Brand X headers gained 4 RWHP. Brand Y headers gained 6 RWHP. Very disappointing for the money spent.
10-01-2016, 01:38 PM
#28
Former Vendor
We see minimal power gains on bolt on C7Z's with longtubes. Lower pulley and intake will give much better results for less. The Stingrays do pick up 20-30rwhp from longtubes.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
Last edited by HorsePowerAddicts; 10-01-2016 at 01:47 PM.
10-01-2016, 01:55 PM
#29
Safety Car
And the winner is????? 
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Dfwz06 (10-01-2016)
10-01-2016, 02:06 PM
#30
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St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
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I don't think there is a winner or, loser. What counts is that the owner is happy with whatever set up he or she is running. I learned long ago that the quest for more hp/torque is never ending. I am happy with mine. Dfwz06 is happy with his. That is all that counts. There is always someone out there that can go faster or has more hp/torque. Not worth the pissing contest imho.
10-01-2016, 02:12 PM
#31
Team Owner
I haven't put headers on my C7Z, and probably won't. However we put two different brands of headers on C6Z's and the gains were definitely not worth the cost. Most people post their gains from headers and a tune, and credit the gains to the headers when, in fact, it's the tune that did the heavy lifting.
Both our C6Z's were tuned prior to having the headers installed, then we retuned to optimize the results with the headers. Brand X headers gained 4 RWHP. Brand Y headers gained 6 RWHP. Very disappointing for the money spent.
Both our C6Z's were tuned prior to having the headers installed, then we retuned to optimize the results with the headers. Brand X headers gained 4 RWHP. Brand Y headers gained 6 RWHP. Very disappointing for the money spent.
I will have before and after dyno sheets from the same day header install from Tom Wong's Performance tuning and Mustang Dyno.
In a little over a week and then I will know just exactly how much I gained peak and under the curve. Stock vs headers on my car.
Results do vary.
Then I'm going to weigh what comes off and the headers going on.
Plus I'm sure the Jethot coating is going to bring me cooler under the hood temps.
Plus the car can beat on harder without the nannies of the M7
stepping in to pull timing.
So I will see for myself.
Plus the sound of headers under the hood I like. Stock sounds are MEH!
Last edited by 3 Z06ZR1; 10-01-2016 at 02:13 PM.
10-01-2016, 02:14 PM
#32
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St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
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That is why I had mid-length headers installed more than any other reason. It sure steps up the sound level in track mode. 
10-01-2016, 02:15 PM
#33
Team Owner
I don't think there is a winner or, loser. What counts is that the owner is happy with whatever set up he or she is running. I learned long ago that the quest for more hp/torque is never ending. I am happy with mine. Dfwz06 is happy with his. That is all that counts. There is always someone out there that can go faster or has more hp/torque. Not worth the pissing contest imho.
10-01-2016, 02:20 PM
#34
Team Owner
We see minimal power gains on bolt on C7Z's with longtubes. Lower pulley and intake will give much better results for less. The Stingrays do pick up 20-30rwhp from longtubes.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
Great to see the little stock blower hauling major ***.
10-01-2016, 02:47 PM
#35
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St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
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Heh ............ Almost looking forward to passing the 60 k mark so I can ramp things up. However, with this being a dedicated dd and long distance trip vehicle with 8,060 mi on the clock in the first month of ownership, I need to be extremely careful with what gets done so as not to upset GM should there be a powertrain issue.
10-01-2016, 03:16 PM
#36
We see minimal power gains on bolt on C7Z's with longtubes. Lower pulley and intake will give much better results for less. The Stingrays do pick up 20-30rwhp from longtubes.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
I
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
The benefits we do see from headers on LT4's is slightly higher power, lower boost, better IAT's, and an awesome sound. Up to you if its worth the cost.
I
My personal C7Z is the quickest stock blower C7Z in the country (9.81@141mph)and we are not running headers. There has not been a c7z come around us on the stock blower, even with headers, meth, cam, ect as far as i have seen anywhere.
10-01-2016, 09:05 PM
#37
Safety Car
Something is very-very wrong here!
Last edited by C7/Z06 Man; 10-01-2016 at 09:09 PM.