Kooks Long Tube Headers 1-7/8 in. (11-14 GT)

Kooks Long Tube Headers 1-7/8 in. (11-14 GT)
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Hey, I'm Justin with AmericanMuscle.com, and I'm going to be taking a closer look at the Kooks long tube headers fitting all 2011 and newer Mustang GTs. Alright, first things first, these long tubes from Kooks are one of the nicer header options available for the modern Coyote motor. They're quality build and unique design make them a top choice on the market today. Now they're definitely on the high side of the price range, but you get what your pay for, so with that in mind, let's take a closer look. These particular set of long tubes are manufactured from high-quality true Mandrel-bent 304 stainless tubing, and are left in that raw stainless look, which in my opinion looks great. This allows for the quality Tig welds to really show through without being covered up by some sort of plating or coating. Kooks does offer a 1-and-3/4 version of this same exact header for less money, and I'd recommend that for someone who wants to keep the bolt-ons relatively mild. The biggest misconception is that going with such a large primary on a relatively stock motor can hurt your performance, which is not necessarily true. Now you might see a hit on your low-end torque but, once you spin those Coyote motors up that larger diameter is really going to help keep things moving, and you should see some nice top-end gains. A large part of this is due to the Venturi style collectors that really help exhaust scavenging and increase your exhaust flow. By now you should all be aware of the pros and cons of using a long tube setup, versus a shorty, now the obvious pro is more horsepower and torque and a noticeable change to your exhaust tone. Now that extra power comes with a little bit more work as these headers take a little bit more time to install, and will require the use of an aftermarket mid-pipe to install correctly. Now when we say a good amount of time, it's wise to leave yourself a full day to complete the job as it's pretty in depth. Now if you don't think you have the mechanical know-how to knock this job out, then its best to leave this one in the hands of the professionals. In the end, the Kooks long tube headers are one of the nicer aftermarket header options available for the 5 L Coyote motor, especially when you factor in that large diameter runner. Be sure to check them out right here at AmericanMuscle.com.
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About Kooks

Kooks Mustang Exhaust Kits
For the past 40 years, Kooks has concentrated its efforts in the racing world. From drag racing to circle track, road racing, motorcycle, and even offshore boats, Kook’s Headers helped set records and win races. Some of the biggest and most dominant names in NMRA, NMCA and NHRA continue to run Kook’s headers and win championships. Kook’s humble beginnings have grown to a full fledged manufacturing facility, but with one major difference that sets us apart from the rest: high quality and great customer service remains the number one priority. You can expect that before and after your purchase as well as when you cross the finish line.
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OUR PRICE$1,009.99
Market Price $1,122.21You Save 10% ($112.22)
Item # 65511
(4.6/5)9 Reviews
Ships the same business day
Add Kooks Shorty Mid Pipe
PRICE WITH OPTIONS $1,009.99
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Product Features

  • Increases RWHP and Torque
  • Long Tube header design
  • Free flowing 1-7/8" mandrel-bent tubing
  • 304 stainless steel construction
  • Tig welded for strength
  • Fits 2011-2014 GT Mustangs

BUY TOGETHER

More Horsepower and Torque. A set of Kooks Long Tube Headers will greatly improve the performance of your 5.0L Coyote Mustang. Kooks Headers feature an integrated venturi style collector that increases exhaust scavenging, and reduces turbulence to improve your 5.0's exhaust flow over the restrictive stock factory manifolds, boosting your Pony's horsepower and torque numbers.

Quality Construction. Kooks Long Tube Exhaust headers are manufactured from 1-7/8" mandrel bent 304 stainless steel tubing for superior airflow. These headers are TIG welded and feature a leak-free ball flange design for optimal performance and a better than OEM fit.

Recommended Upgrade. To realize the full power potential that these Long Tube Headers have to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. These Kooks Long Tube Headers are designed to fit the 2011-2014 5.0L GT Mustangs. Kooks long tube headers require the use of a Kooks shorty midpipe in order to be installed properly (see drop down option above).

Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

Header Specifications
Header Type: Long Tube Finish : Natural
Type Mid Pipe Required: Shorty Fitment: 2011-2014 5.0 GT Mustangs

Installation Time:

(approx) a Day

Difficulty Level:

Mechanical expertise or professional installation required.

What's in the box?

  • (1) Driver side header
  • (1) Passenger side header
  • (2) Gaskets
  • (16) Small bolts
  • (8) Flat washers
  • (4) Long bolts
  • (4) Nuts

What's in the box?

  • (1) Driver side header
  • (1) Passenger side header
  • (2) Gaskets
  • (16) Small bolts
  • (8) Flat washers
  • (4) Long bolts
  • (4) Nuts
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Fitment:
  • GT 11, 12, 13, 14
  • Boss 12, 13

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