kooks headers

I installed kooks catless long tube headers on my dark horse, now i dont have power to the screen/dash, headlights wont turn on, and my key fob wont register, but you can see that it has power in other areas, as well i have a random 6 pin connection that idk where it goes to, o2 extension are...

Hey guys, recently scraped (lightly) on a speed bump with my 2024 GT with Kooks LTH. I hear some grinding noise from/close to the engine bay. I’m guessing LTH maybe touching the ac line. Any idea on how to fix this noise?

ALL NEW Kooks Catbacks for 2018-2024 Mustang GT + SAVE on ALL Kooks Exhaust NOW! Made from the highest quality 304 Stainless Steel right here in the USA, Kooks’ all new Valved 3" Touring and 3" Shotgun Catback Exhausts for the 2018-2024 Mustang GT are now available to order here at Lethal...

ALL NEW Kooks Catbacks for 2018-2024 Mustang GT + SAVE on ALL Kooks Exhaust NOW! Made from the highest quality 304 Stainless Steel right here in the USA, Kooks’ all new Valved 3" Touring and 3" Shotgun Catback Exhausts for the 2018-2024 Mustang GT are now available to order here at Lethal...

ALL NEW Kooks Catbacks for 2018-2024 Mustang GT + SAVE on ALL Kooks Exhaust NOW! Made from the highest quality 304 Stainless Steel right here in the USA, Kooks’ all new Valved 3" Touring and 3" Shotgun Catback Exhausts for the 2018-2024 Mustang GT are now available to order here at Lethal...

Hey guys, I know this question been asked many times in this form but haven’t gotten any solid responses. One of the YouTube videos recently showed adding Kooks long tube headers added 12 more hp with dyno test. So wondering without tuning available for s650 yet are they worth investing in...

Took my Mustang GT to the drag strip after after adding kooks long tube headers and AWE switch path exhaust. Let’s just say we saw some good trap speed gains and better quarter mile times! Worth it in my opinion!

Has anyone in CO installed long tube headers on their s650 mustang GT? Lot of performance shops I call say it’s illegal to install them in CO area. Any work around apart from me installing it by myself?

Just got my AWE cat back exhaust installed paired with KOOKS long tube headers. In my opinion I think it sounds like no other coyote it has a very unique defined tone much better than any X pipe mustangs. Let me know what you guys think. Thanks @Sara/AWE for the help with the exhaust.

Just got some kooks headers installed from @LethalPerformance really wakes up the coyote If you’re interested in headers or wondering how it sounds check out my video!

Today I will start prepping my Kooks headers for Cerakote high heat ceramic coating. I’m going to be using easily available and affordable stuff I bought from amazon to do the job and I will give my honest feedback on the process. I will update the thread with pictures after each stage. To start...

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...

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...

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...

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...

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...

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...

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...

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...

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...