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Thread: Kooks headers on 2013 GT,which exhaust gaskets and bolts???

  1. #1
    Member 1badnotch's Avatar
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    Kooks headers on 2013 GT,which exhaust gaskets and bolts???

    I bought a set of used Kooks headers and x-pipe for my 2013 GT a while ago. I am getting ready to install them. They didn't come with gaskets or hardware. Which exhaust gaskets and bolts should I go with? Thanks. Mark
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  2. #2
    Tripedalist yeahloh95's Avatar
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    I am pretty sure I reused the stock gaskets and I know I used the stock bolts .
    Troy
    95 gt 11.3 @ 126
    68 f100 SB soon to be coyote powered
    12 GT 6m cobra jet powered 11.4 @124
    90 lx supercharged 440 rwhp on 8 lbs
    17 triple yellow focus ST2

    PEOPLE HAVE MORE FUN THAN ANYONE

  3. #3
    Member 1badnotch's Avatar
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    OK,awesome. Sounds like I don't need to order any more parts then. I didn't realize that you could re-use the stock bolts with the Kooks. Thanks yeahloh95!
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  4. #4
    Tripedalist yeahloh95's Avatar
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    yeah they are crimped and kinda hard to get off and back on but they don't come loose , you do need to start one on the pass side before you have the header all the way on the stud or you wont be able to get it started look for the tube with the tight bend right by the bolt hole .
    Troy
    95 gt 11.3 @ 126
    68 f100 SB soon to be coyote powered
    12 GT 6m cobra jet powered 11.4 @124
    90 lx supercharged 440 rwhp on 8 lbs
    17 triple yellow focus ST2

    PEOPLE HAVE MORE FUN THAN ANYONE

  5. #5
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    Did the same. One starter bolt is PITA. Used a few 1/4" extensions to get to that bolt. What size primaries did you go with?
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  6. #6
    Member 1badnotch's Avatar
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    I believe they are the 1 7/8" primaries. Do you guys recommend removing the k-member or is it possible to install them without removing it?
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  7. #7
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    It can be done without removing it. Did it on the ground the first time. 2nd time on a lift. Never hurts to use some heat reflective tape that was supplied to wrap around the starter.
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  8. #8
    Tripedalist yeahloh95's Avatar
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    did mine on a lift took about 8 hours
    Troy
    95 gt 11.3 @ 126
    68 f100 SB soon to be coyote powered
    12 GT 6m cobra jet powered 11.4 @124
    90 lx supercharged 440 rwhp on 8 lbs
    17 triple yellow focus ST2

    PEOPLE HAVE MORE FUN THAN ANYONE

  9. #9
    Member 1badnotch's Avatar
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    I will be doing mine up on jack stands. I don't really want to remove the k-member,but I will if I have to. Thanks for the tips fellas. I appreciate it!
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  10. #10
    MPG's, bitch! Mitternacht's Avatar
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    Reused all stock hardware/gaskets, removed battery, tray and starter, both motor mount brackets. 7 hours start to finish on jackstands. Not as difficult a job as a lot of people lead it on to be. Hardest part is top starter bolt.
    Chris

    2016 Chevrolet Volt
    2010 Jetta TDi Cup Edition
    1964 Lincoln Continental
    And 5 other things that don't run


  11. #11
    Member 1badnotch's Avatar
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    Mitternacht it's good to hear that your install went pretty well while doing it on jackstands. I have heard some horror stories on some other sites. I am feeling more confident after reading posts from a few of you guys. Thanks for the reply.
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  12. #12
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    You'll get it man. If you were closer I'd help you through it. Take your time. I read the horror stories too. I used a combination of closed end, open end and ratcheting closed end wrenches for the header install. Like Troy was saying leave the header bolts loose until all are started. The 1 7/8" primaries get tight on some the bends.
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  13. #13
    Member 1badnotch's Avatar
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    I am planning on starting this job soon,probably next week. I'm going to pick up some flex head ratchet wrenches. Wish me luck. I post back with how it goes. Thanks again to everyone for the replies.
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  14. #14
    Member 1badnotch's Avatar
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    Well I finally got all of my exhaust put on. I installed Kooks 1 7/8" mid lengths/catted x-pipe,GT500 over axle pipes and kept my Roush mufflers. It sounds pretty mean now! Thanks for the advice Troy,Pure Stock and Mitternacht. Now I just need to put on my 2018 intake manifold,JLT cai and SCT x4.
    Last edited by 1badnotch; 04-08-2019 at 04:02 AM.
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

  15. #15
    No Traction due to Paxton PaxtonShelby's Avatar
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    Nice work! Finish her up!
    2014 GT Premium - Sterling Gray Metallic - MT82 - Track Pack - Glass Roof - Recaro seats - Spoiler delete
    12.76 @ 114.04 bone stock. Koni yellow coil-overs, BMR watts, LCA and LCA relo brackets, Borla S-type axle back.

    1966 Coupe - 331 stroker - Bullet custom roller cam - cam and motor installed and dyno tuned by Rodeheavers Hot Rod - Astro A5 - McLeod RXT - 486 to the wheels - more fun than my little tires can handle

    1966 Oldsmobile Toronado - currently NOT on jackstands

  16. #16
    Not Bad for 367 SAE RWHP Pure Stock's Avatar
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    Great to hear!
    2011 Mustang GT, MT-82, 3.73's :

    BONE STOCK 12.223@115.18

  17. #17
    Tripedalist yeahloh95's Avatar
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    glad you got it knocked out, the tune will help a bunch
    Troy
    95 gt 11.3 @ 126
    68 f100 SB soon to be coyote powered
    12 GT 6m cobra jet powered 11.4 @124
    90 lx supercharged 440 rwhp on 8 lbs
    17 triple yellow focus ST2

    PEOPLE HAVE MORE FUN THAN ANYONE

  18. #18
    MPG's, bitch! Mitternacht's Avatar
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    My exhaust setup was Pypes longtubes, 3" x-pipe, lethal oap's and quad-tip GT500 mufflers. It was easily the meanest sounding car I've ever owned and I miss the noises that car made.
    Chris

    2016 Chevrolet Volt
    2010 Jetta TDi Cup Edition
    1964 Lincoln Continental
    And 5 other things that don't run


  19. #19
    Member 1badnotch's Avatar
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    I also got my 2018 intake manifold and JLT CAI installed. I got a base tune from Shaun@AED loaded in the car last night. I just need to figure out how to data log now.
    2013 Mustang GT,ingot silver,black leather,MT82,track pack,Kooks headers/x-pipe,GT500 OA pipes,Roush mufflers.
    2002 F250 Lariat,dark shadow gray,gray leather,CCSB,4x4,7.3 diesel,auto,lots of mods.
    2017 Explorer XLT,canyon ridge,black cloth,AWD,2.3 Ecoboost,K&N filter
    2010 Flex Limited,ingot silver,black leather,AWD,3.5 Ecoboost,AFE filter,HD brakes
    2014 Honda Pioneer 700-4,'89 Yamaha Blaster
    Kubota B7800,30hp diesel,AG tires,front loader,box blade

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