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headers

  1. 2M Steering Shaft For 2015+ Mustangs

    Has anyone tried this? I hate to give 2M more publicity, but I really don't want to take my headers that don't clearance back off. I was thinking this might be an easier method. Thoughts? https://shop.2mfabrication.com/product/2015-mustang-ultra-clearance-steering-shaft?gQT=2
  2. Arizona Sold: Brand new 2M Fabrications long tube headers

    Hey team. Bought these a while back for a future project build, which changed over the years to a Predator engine built from the ground up. Due to the GT5 oil pan reservoirs, the driver side won't fit so I have to get GT5 specific for the project. Never installed, no bolts tightened. Go for $590...
  3. Long Tube Headers Help

    posted a thread earlier this week asking for help and after doing more research and help from you all, im starting to understand. now, my only question would just be do i need to get o2 wire extensions for my headers? will the stock ones reach? have a 2016 GT and the headers are from Texas...
  4. Lethal Performance by Kooks Headers IN STOCK!

    Good Morning, #teamlethal fans! Happy Monday! We just got a FRESH batch of our Lethal Performance by Kooks 1-7/8 Headers & Competition Only Connection Kits! 1 7/8" x 3" Stainless Steel Long Tube Headers Includes Stainless Steel Off Road Connection Pipes for OEM Cat Back Connection All O2...
  5. Is it worth buying these texas speed headers if it has these dents on one of them?

    I'm looking to buy texas speed headers for my 15' mustang. I stumbled upon these used ones for a little bit less than half the price of new ones. So they cheap. The only thing holding me back from buying is the dents on the passenger header. The owner states that he had no idea that it was there...
  6. Bbk headers to midpipes?

    cas
  7. Lethal Performance by Kooks Headers NOW SHIPPING!!

    Morning, Everyone! You saw us tease and post about them, but they have arrived and are now Shipping! As quickly as same day! These are our Lethal Performance by Kooks 1-7/8 Headers & Competition Only Connection Kit (2015-2024 Mustang GT 5.0L) - 1151H412-LP Lethal Performance by Kooks 1-7/8...
  8. Lethal Performance by Kooks Headers NOW SHIPPING!!

    Morning, Everyone! You saw us tease and post about them, but they have arrived and are now Shipping! As quickly as same day! These are our Lethal Performance by Kooks 1-7/8 Headers & Competition Only Connection Kit (2015-2024 Mustang GT 5.0L) - 1151H412-LP Lethal Performance by Kooks 1-7/8...
  9. Weird Metallic Sound

    Hello all, This is my first post on the forums! I have a 2015 Gt and it has 78k miles on it, I recently had kooks long tube headers installed with cats, they connected it into corsas through an oem connection because the aftermarket connect wasn’t long enough. When I got it back I’m 90% sure...
  10. NEW NEW NEW Lethal Performance Headers By Kooks!!

    Hey, ALL! Happy Wednesday! That's right, NOW AVAILABLE is our ALL NEW Lethal Performance Headers, by Kooks. Works for all 2015-2024 Year Models! 1 7/8" x 3" Stainless Steel Long Tube Headers Includes Stainless Steel Off Road Connection Pipes for OEM Cat Back Connection All O2 Bungs And...
  11. NEW NEW NEW Lethal Performance Headers By Kooks!!

    Hey, ALL! Happy Wednesday! That's right, NOW AVAILABLE is our ALL NEW Lethal Performance Headers, by Kooks. Works for all 2015-2024 Year Models! 1 7/8" x 3" Stainless Steel Long Tube Headers Includes Stainless Steel Off Road Connection Pipes for OEM Cat Back Connection All O2 Bungs And...
  12. NEW NEW NEW Lethal Performance Headers By Kooks!!

    Hey, ALL! Happy Wednesday! That's right, NOW AVAILABLE is our ALL NEW Lethal Performance Headers, by Kooks. Works for all 2015-2024 Year Models! 1 7/8" x 3" Stainless Steel Long Tube Headers Includes Stainless Steel Off Road Connection Pipes for OEM Cat Back Connection All O2 Bungs And...
  13. Kooks Sale at Lethal Performance!

    Hey Guys! The Kooks sale just went live, so do not miss your chance to save 10% on Kooks exhaust and products! We included an even more special sale on the popular 1-7/8 Headers (SKU#: 1151H411), so be sure to check that out as well! This sale will be valid for all of March and will end on...
  14. Kooks Sale at Lethal Performance!

    Hey Guys! The Kooks sale just went live, so do not miss your chance to save 10% on Kooks exhaust and products! We included an even more special sale on the popular 1-7/8 Headers (SKU#: 1151H411), so be sure to check that out as well! This sale will be valid for all of March and will end on...
  15. Texas Sold: WTB: Kooks or ARH Offroad Longtube Headers

    I have a set of ARH on order but huge lead time with most header companies. Looking for a set of either Kooks or ARH headers with offroad connection pipes. Located in DFW, TX.
  16. Massachusetts KOOKS 1-7/8 full length headers with GREEN catted mid-pipe

    They are used with about 1000 miles on them..Fit 2015-23 5.0 GT..Come with gaskets and bolts. I bought them for my car but selling car after winter and not going to bother. Prefer not to ship but local pick up price $2200. or shipped $2450. Over $3100 new.... Cash in person or Paypal if...
  17. Advice and Questions for Headers

    Hello, folks! First time poster. I have a 2019 GT. I'm looking to get 1-7/8 inch Stainless Power catted headers paired with my 3 inch Borla Atak system. Need some advice and a few questions answered before I go ahead and do it.... 1.) Most importantly, I was told with a tune and catted long...
  18. No rear o2 Holes in Headers

    I have a 2015 Mustang GT. With Texas Speed Longtube headers that have a catted connection. I’ve noticed that there’s only o2 bungs before the cats themselves and not after. Do i get holes threaded in? is this intentional? If i get a tune, will i have to get dummy connectors? i’m all new to this.
  19. clutch feel when hot

    what's up everyone, I just got a 2015 mustang GT with the performance pack and the mt82. so far, I've done headers and the car came with a JLT intake I'm going to tune the car next week. I'm having a small issue where when the car gets hot after sitting in traffic my clutch starts to grab really...
  20. Input on Headers + E85/93 Flex Fuel Tune

    Hello all, I have been enjoying my 2022 Mach 1 HP as is with a simple H pipe for around 7,500 miles since I purchased it in December of 2022. That being said, I'm looking to wake the car up with catted headers and a e85/93 tune. I have the following questions: - Kooks, Stainless Works or BBK ...


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