10-30-2017, 05:50 PM | #1 |
Drives: 2017 Camaro SS m6 Join Date: Oct 2016
Location: Northeast
Posts: 89
|
How much of a horsepower gain with headers and full exhaust?
Just wondering how much of a increase in horsepower would i get on my gen6 Camaro with Kooks headers with cats ,3inch exhaust running into an x pipe straight into flowmaster outlaws out back? No tune.
|
10-30-2017, 05:53 PM | #2 |
Drives: 2017 1SS Camaro; 2016 4Runner Join Date: Dec 2016
Location: Mesa, AZ
Posts: 72
|
Zero without a tune.
Note: Replacing the headers = warranty void. |
10-30-2017, 05:55 PM | #3 |
Drives: 2017 Camaro SS m6 Join Date: Oct 2016
Location: Northeast
Posts: 89
|
|
10-30-2017, 05:57 PM | #4 |
Really depends on the dealer. Some are mod friendly, some not so much. I have a dealer within a mile of my house that won't touch my car. But the dealer 30 miles away in Salem has no issues at all.
|
|
10-30-2017, 06:02 PM | #5 |
Drives: 2017 Camaro SS m6 Join Date: Oct 2016
Location: Northeast
Posts: 89
|
The dealer i deal with says that according to Chevrolet the actual manufacturer the warranty is in tact as long as theres no tune. They checked.
|
10-30-2017, 06:46 PM | #6 |
Drives: 99 ws6 trans am, 18 ss 1le, benz sl Join Date: Oct 2017
Location: Kansas city mo
Posts: 38
|
Ya but without a tune what's the point.. won't you be throwing codes and running rough?
|
10-30-2017, 06:52 PM | #7 |
Drives: 2017 Camaro SS m6 Join Date: Oct 2016
Location: Northeast
Posts: 89
|
Why would it?. Its not Supercharged. Plenty of people install headers and exhaust with no tune. If anyrhing it should run way better and sound mean as fuk. Ive watched some videos online with people getting around a 25hp+ gain with similar set up as well.
|
10-30-2017, 07:00 PM | #8 | |
Drives: Chevrolet Camaro SS Join Date: Mar 2015
Location: Planet Earth
Posts: 721
|
Quote:
Further, your federal emissions warranty is done. The federal covers certain emissions related components, not just the cats but also the PCM, even without a tune. The parts covered under the federal is 8/80. |
|
10-30-2017, 07:19 PM | #9 |
Drives: 2016 Camaro 2SS A8 Join Date: Dec 2015
Location: Charlotte, NC
Posts: 161
|
FYI - I installed Kooks headers with their "green cats" bolted up to the factory catback exhaust. The green cats were supposed to prevent CELs. Not only did I get a CEL right away but the car ran terrible. When you install headers the fuel mapping goes crazy. I was running extremely rich and actually fouled up a few spark plugs causing the car to start mis firing after a week. Needless to say I could of saved money on the spark plug replacement if I just would have gotten a tune right away. Lesson learned - get a tune with headers or you risk ruining other parts and having the car run like crap.
If you don't want a tune because you are worried about voiding the warranty, then headers aren't for you at this point in time (wait until at least the powertrain warranty expires). |
10-30-2017, 08:45 PM | #10 |
Drives: '18 Zl1. '18 GT350. Join Date: Dec 2016
Location: Katy
Posts: 2,104
|
Not much, if any. Not enough to be noticeable. You need a tune.
__________________
There's only 2 people I trust. 1 of them is me, the other's not you. 2018 Zl1. 1199 RWHP/931 TQ.
|
10-30-2017, 08:59 PM | #11 | |
Quote:
Yeah I just had headers/w highf-flow cats and full 3" all the way back and the car is running like shit. Gonna park it until I get a tune. |
||
10-30-2017, 09:18 PM | #12 |
Drives: 2017 Camaro SS m6 Join Date: Oct 2016
Location: Northeast
Posts: 89
|
Interesting. I know of people running the same up that i mentioned with no rune and there car runs fine. Also why would the chevy dealer say it fine to do so as well? I would think if it wasn't they would be the first to say so.
|
10-30-2017, 09:47 PM | #13 | |
Quote:
These are the same clowns putting 8 quarts in our cars and can't seem to figure out why the A8 is having issues. I don't listen to a damn thing the dealer says. |
||
10-31-2017, 06:27 AM | #14 |
|
OP your car will run fine with LTs but you will be throwing O2 CELs. Not a big deal really. Been there more than once. I just kept a code reader in the car.
But the sad part is on the LT1 you get about 15 RWHP despite claims to the contrary. And the tune mainly quiets the rear O2s. Not much if any extra HP there.
__________________
"Democracy Dies in Darkness" |
|
|
Post Reply
|
|
|