Customer Reviews (31) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Weekend

Installation Cost:$250-$500

• Loudness / Volume 4.6 4.6
• Exhaust Note 4.866667 4.9
• Fit & Finish 4.733333 4.7
• Bang For Your Buck 4.733333 4.7

• 5/5

  Installation Time: Shop Install

  August 16, 2019

  Amazing sound, amazing performance

  It has only been a few days but the difference is night and day. At idle, the change is subtle. When you lay on it boy does it wake up. It tough to judge the gains as I had gears done at the same time but overall I'm more than pleased with the outcome. Highly recommend.

  hwhalerfan79

  Year: 2008 Submodel: GT

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Full Day

  April 23, 2019

  Went from O/R x pipe to these

  It's obviously quieter than an "off-road" setup but it still has a great deep tone and made my car legal in VA. Went with Kooks for the fitment and quality of the pipes, great sounding setup.

  DougB

  Year: 2005 Submodel: GT

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Weekend

  March 13, 2019

  new sound

  great sound.easy install for a novice. it took a few days

  RobertC

  Year: 2008 Submodel: GT

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Weekend

  February 11, 2019

  POWER

  They sound amazing. Don't go with any other header, worth the price.

  Brendan96

  Year: 2005 Submodel: GT

  Helpful (2) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  January 07, 2019

  Oh my goodness

  I love my kooks and the performance gain is second to none. I running TB, cams, cai and 93 octane tune and I must say I’m in love. I know the kooks are a bit pricey but it’s worth, so worth. My car runs smooth and sound great. Deep nice tone and no raspy sound in the cabin. This is a must get. Thanks AM.

  Somar

  Year: 2008 Submodel: GT

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $250-$500

  December 22, 2018

  BEAST

  My car truly pulls now. Amazing sound. Performance gains through the roof. I have a tuner/CAI along with the long tubes and it’s just amazing how well it’s all coming together.

  GrantL

  Year: 2007 Submodel: GT

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Full Day

  December 04, 2018

  Great System

  this is a great upgrade for the 2008 mustang gt. fits perfect...with a little elbow grease no problems!

  LG

  Year: 2008 Submodel: GT

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 4/5

  Installation Time: Weekend

  October 22, 2018

  Great Product

  Only got them installed this weekend after purchasing almost a year ago. The install took approximately 10 hours using jack and stands but this was my first time doing a fairly significant install. Be aware the driver side header especially does not offer much room to install and tighten the bolts 2 bolts took over a half hour to tighten. You will require various different wrenches and ratchets with different length handles and extensions (good quality tools recommended). There is not a significant volume increase but the exhaust not is much deeper when paired with my Magnflow cat back. I also paired these with a Bama performance tune so I do notice a slight difference in power. I have not had the car on a dyno so can not give actual numbers. Would definitely recommend especially for those who want to try nd keep a street legal car with cats.

  MikeR

  Year: 2005 Submodel: GT

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 4

    4

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Weekend

  September 05, 2018

  Hooks long Tube Headers

  Easy install! Sounds good! Very good product to buy!

  Michael

  Year: 2005 Submodel: GT

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 3

    3
• 5/5

  Installation Time: Full Day

  May 21, 2018

  Looks exhaust

  Sounds great and received exceptional power gains.

  JohnH

  Year: 2006 Submodel: GT

  Helpful (7) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 4

    4
• 4/5

  Installation Time: Shop Install

  Installation Cost: $250-$500

  April 18, 2018

  Now sounds like a beast

  I read enough to not try the install myself since I don't have a lift. So I had a shop install them. I was really surprised at how much louder my car was vs. stock. I have put headers on a few cars I've owned and these made the biggest difference in sound by far. I really wasn't going for the loud, but it's not too bad as long as you aren't into the throttle too much. I had put on a supercharger a year or so ago and wanted the headers so things could breath better. I did run into an issue that isn't completely resolved yet. The clearance on the driver side cat is very minimal. When I first picked up the car after the install, the cat was hitting on the driver side both on the floorboard and the O2 sensor was hitting the transmission mount. After some wrestling and minor grinding by the shop, the driver side cat clears the floorboard (barely) and the O2 sensor no longer hits. But after the exhaust heats up after 20 minutes or more of driving, the driver side cat hits the floorboard occasionally when accelerating causing a bunch of noise. I may need to take it to an exhaust shop to tweak a bend to give me some clearance? Overall, I'm very happy with them. Although I need to get the clearance issue resolved.

  jslacy

  Year: 2008 Submodel: GT

  Helpful (11) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 4

    4

  • Fit & Finish 4

    4

  • Bang for your Buck 5

    5
• 4/5

  Installation Time: Weekend

  April 09, 2018

  Long tubes

  Great ad on for my Roush mustang, installation was completed with 4 tall jack stands I did not have to remove the motor mounts or k member. I did throw out the supplied mounting bolts for a good set of headlock locking header bolts. Also a good selection of hand tools will make install a lot easier..

  BentRod

  Year: 2008 Submodel: GT

  Helpful (8) Thanks for your input!

  • Loudness (Volume) 3

    3

  • Exhaust Note 5

    5

  • Fit & Finish 4

    4

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Weekend

  September 10, 2017

  Sounds like a beast

  I got this combo with the Pypes muffler delete and it sounds loud and raspy just like i wanted.

  JoeR007

  Year: 2007 Submodel: GT

  Helpful (7) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $250-$500

  September 02, 2017

  MUST BUY!!!!

  I had these to go with my Flow Master Outlaw Axle backs and I must tell you it is amazing! I cant get over the feel and sound! It is expensive, but extremely worth it!

  Mickie

  Year: 2005 Submodel: GT

  Helpful (9) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Full Day

  June 21, 2017

  high class long tube headers

  fits perfect, but need some little 4- 5 final ajustement. sound was really perfect with my bullitt stock muffler.

  HugoB

  Year: 2008 Submodel: Bullitt

  Helpful (6) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 4

    4
• 5/5

  Installation Time: Full Day

  June 14, 2017

  Great product

  After many hours of research on multiple headers and mid-pipes, I finally decided to go with Kooks. I was a little weary of buying the Kooks as they are the most expensive out of any others, however, the quality of the material, as well as the quality of the sound, simply cannot be beaten. Getting these headers to fit onto the engine was a bit of a pain. The lower header bolts become very hard to get to when the new headers are put on. If you find yourself purchasing this great product, I would HIGHLY recommend removing the K-member as it will allow you to get your hands directly underneath the headers instead of having to go from the side like I did. It took my father and I around 9 hours from start to finish while using a lift. Nontheless, these headers are amazing and give you an amazing sound that is sure to turn heads going down the road.

  DrakeP

  Year: 2009 Submodel: GT

  Helpful (6) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 4

    4

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Full Day

  March 17, 2017

  Can't go wrong with kooks

  Purchased these for my 08 GT and the sound is phenomenal. Such a night and day difference between stock manifold. My mechanic said they were the best fitment and quality headers he has installed ever. The x-pipe does give a very raspy tone so if you don't like that type of tone I would say get the headers and go for the kooks h-pipe instead. Overall great product and I am very satisfied.

  mitchjb98

  Year: 2008 Submodel: GT

  Helpful (7) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  January 22, 2017

  Amazing Quality

  I like many others have done hours upon hours of research for the best headers for my pony. Everyone is gonna have their own opinion and mine now more than ever is Kooks. The quality of the welds and stainless steel tubing are superior to some other brands that I have seen. The moment I started my pony up you could just hear her singing with joy. The x-pipes have a bit of raspy tone to it and the overall noise isn't too loud making it just enough to wake your neighbors at 5am but not enough to put you on any police radars. These are a little on the pricey side but you get what you pay for.

  Ziggy

  Year: 2007 Submodel: GT

  Helpful (9) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 4

    4
• 5/5

  May 20, 2016

  05 Saleen NOVI 2200

  Had local shop install these and netted additional 52 RWHP and 36 ft lb Torque. This was also with the addition of Steeda Charge motion delete plates. 502 RWHP and 457 torque. Clutch slipped at 6K RPM so need a upgrade. Made a HUGE difference and could not be happier. 373s were also added.

  Ammotroop

  Year: 2005 Submodel: Other

  Helpful (7) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Shop Install

  Installation Cost: $500-$1000

  July 11, 2015

  More power, great fit, great sound

  I bought this after intake, cam, gears (and other stuff). Fit is great, power increase is wonderful, and the sound is fantastic. Without changing the exhaust your power isn't maximized.

  Wally1681

  Year: 2006 Submodel: GT Minneapolis, MN

  Helpful (6) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5