As promised..... here is the next article I am doing.
With the coyote's still showing everyone that they are the best thing Ford has ever put in the pony.... The aftermarket industry is right their with them on producing products that wake the bad boys right up!!
I still remember when making 350rwhp was amazing and running 12s on a street car was un-touchable. Now.... if your not making over 400 or running 10s.... their is a problem. Technology has come a long way I must say.
So with that being said, we decided to see how much power going from a couple bolt-ons to the next level. We had the chance to work with a local customer and his beautiful 2013 GT manual.
This machine was already running a BBR tune, STEEDA CAI and a Lethal Off Road H-Pipe. In my mind... this was a perfect candidate for this test because this is prob one of the most commonly bought mods on the market.
Off Road H
Under the hood
Once the car arrived here.... we Let it cool down for a bit and made a pull. To our surprise... this made really good power with the current mods:
Now.... the fun begins :rockon:
After seeing seeing what she put down on the basic mods, we quickly started to tear her apart and begin this car's 2nd Chapter of it's life.
We are installing the KOOKS Longtube Headers with off road H Pipe. Once the car was being ripped apart, the owner decided he wanted to add the BOSS manifold to it as well. We actually agreed with this because the longtubes should help the mid range where the BOSS manifold would take that away... In theory that is.
I will admit... they look very nice and the welds are spot on!
So we put the manifold on first because it is a pretty easy install. No more than an hour I'd say. After that, we started the header install. Now removing the H pipe and stock headers is fairly easy and doesn't take a lot of time. With the proper tools and a lift... Take you couple hours max. On jack stands, prob about the same. (I'm using real life times not shops)
Now when we went to install the new longtube (which the Kooks are more of a mid length), we came to our first problem.. The gaskets that Kooks provided threw up a red flag. Check this out:
The material was very cheap and we quickly decided we are not using these. The stock header gaskets work great so we used that instead.
After this, we mounted up the headers. On the driver side, we had to disconnect the steering shaft to slide them in. Was a game of tetris trying to fit the shaft through the header. Once mounted up, we started to put the new supplied header bolts in. All but 1 would go in and if you start with that one.. none of the others would fit. We had to do some grinding on the flange which didn't take long and not a big deal but had to pull the header back off.
Once this was corrected and getting the header back into place, it was fine and tighten right down. On the passenger side, I must say it went in very easy until we had to put the starter back in. (We like many remove the starter on instals like this.) We had to remove the header and install the starter first. My tip.... be careful. The wires are very close to the header once in place. And if you ever have to remove and replace your starter, the header has to come off.
Here is a picture to show how tight it was
Once this was taking care of, we moved on to install the H pipe which went very well and is very easy.
Here is a picture of them installed:
After this, we put her back on the dyno to give her some time with Chris.
Dyno Video:
13 GT on dyno with BBR tuning - YouTube
The Kooks with the Borla S-Type Axle back I must say is stupid loud but mean as all hell!!!!
After 4 pulls, Chris had this baby dialed in perfect. As you can see below:
Here is the graph comparing the first pull to the final pull
Now before people freak out... The dyno lost the trq signal right at the very end and is why it looks like this. It's also caused by over spinning the dyno. We did not have our eddie-break on for this car. The point I was making is the horsepower difference. We all knew the trq would be down with the manifold but you can see where the mods helped over the previous ones.
Once this was finished..... The owner wanted to have a little fun. here is the video of the car at idle and giving her some love
13GT with new exhaust - YouTube
Here is a picture of the finished product under the hood:
Now... with the issues that happened... I am not going to say they are horrible, ect ect ect... It happens.... Every company can have issues. Does it take longer to install these over the others..... YES. Does the quality overcome the others..... Maybe... Is the welds good? HELL YEAH!!!!!! These headers and manifold picked up a good 40hp and I would be very happy with that.
Cost of Items used:
BOSS Manifold: $479.99
Kooks Headers: $980.00
Kooks Off Road H: $457.77
Any more questions, please feel free to call 561-417-5555
With the coyote's still showing everyone that they are the best thing Ford has ever put in the pony.... The aftermarket industry is right their with them on producing products that wake the bad boys right up!!
I still remember when making 350rwhp was amazing and running 12s on a street car was un-touchable. Now.... if your not making over 400 or running 10s.... their is a problem. Technology has come a long way I must say.
So with that being said, we decided to see how much power going from a couple bolt-ons to the next level. We had the chance to work with a local customer and his beautiful 2013 GT manual.
This machine was already running a BBR tune, STEEDA CAI and a Lethal Off Road H-Pipe. In my mind... this was a perfect candidate for this test because this is prob one of the most commonly bought mods on the market.
Off Road H
Under the hood
Once the car arrived here.... we Let it cool down for a bit and made a pull. To our surprise... this made really good power with the current mods:
Now.... the fun begins :rockon:
After seeing seeing what she put down on the basic mods, we quickly started to tear her apart and begin this car's 2nd Chapter of it's life.
We are installing the KOOKS Longtube Headers with off road H Pipe. Once the car was being ripped apart, the owner decided he wanted to add the BOSS manifold to it as well. We actually agreed with this because the longtubes should help the mid range where the BOSS manifold would take that away... In theory that is.
I will admit... they look very nice and the welds are spot on!
So we put the manifold on first because it is a pretty easy install. No more than an hour I'd say. After that, we started the header install. Now removing the H pipe and stock headers is fairly easy and doesn't take a lot of time. With the proper tools and a lift... Take you couple hours max. On jack stands, prob about the same. (I'm using real life times not shops)
Now when we went to install the new longtube (which the Kooks are more of a mid length), we came to our first problem.. The gaskets that Kooks provided threw up a red flag. Check this out:
The material was very cheap and we quickly decided we are not using these. The stock header gaskets work great so we used that instead.
After this, we mounted up the headers. On the driver side, we had to disconnect the steering shaft to slide them in. Was a game of tetris trying to fit the shaft through the header. Once mounted up, we started to put the new supplied header bolts in. All but 1 would go in and if you start with that one.. none of the others would fit. We had to do some grinding on the flange which didn't take long and not a big deal but had to pull the header back off.
Once this was corrected and getting the header back into place, it was fine and tighten right down. On the passenger side, I must say it went in very easy until we had to put the starter back in. (We like many remove the starter on instals like this.) We had to remove the header and install the starter first. My tip.... be careful. The wires are very close to the header once in place. And if you ever have to remove and replace your starter, the header has to come off.
Here is a picture to show how tight it was
Once this was taking care of, we moved on to install the H pipe which went very well and is very easy.
Here is a picture of them installed:
After this, we put her back on the dyno to give her some time with Chris.
Dyno Video:
13 GT on dyno with BBR tuning - YouTube
The Kooks with the Borla S-Type Axle back I must say is stupid loud but mean as all hell!!!!
After 4 pulls, Chris had this baby dialed in perfect. As you can see below:
Here is the graph comparing the first pull to the final pull
Now before people freak out... The dyno lost the trq signal right at the very end and is why it looks like this. It's also caused by over spinning the dyno. We did not have our eddie-break on for this car. The point I was making is the horsepower difference. We all knew the trq would be down with the manifold but you can see where the mods helped over the previous ones.
Once this was finished..... The owner wanted to have a little fun. here is the video of the car at idle and giving her some love
13GT with new exhaust - YouTube
Here is a picture of the finished product under the hood:
Now... with the issues that happened... I am not going to say they are horrible, ect ect ect... It happens.... Every company can have issues. Does it take longer to install these over the others..... YES. Does the quality overcome the others..... Maybe... Is the welds good? HELL YEAH!!!!!! These headers and manifold picked up a good 40hp and I would be very happy with that.
Cost of Items used:
BOSS Manifold: $479.99
Kooks Headers: $980.00
Kooks Off Road H: $457.77
Any more questions, please feel free to call 561-417-5555
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