What Size KOOK's Long Tube Headers?
#1
Bullitt Member
Thread Starter
What Size KOOK's Long Tube Headers?
I'm going to be putting on some Kook's, Long Tube Headers. They have them in 1-5/8, 1-3/4, 1-7/8 and 2". For a 2013 GT, Naturally aspirated (CAI). 10K miles on it,(Summer car) Boss 302 Intake. What size should I go with?
I may Supercharge it later on but will need something that will work now with the option of putting forced induction on it at a later date.
Thought's?
I may Supercharge it later on but will need something that will work now with the option of putting forced induction on it at a later date.
Thought's?
#2
Legacy TMS Member
If you're going FI, do the 1 7/8. I'm N/A and probably always will be, and I'm running Stainless Power 1 7/8. I did lose a little low end torque, but the mid-high RPM gains are crazy. You'll be just fine with the 1 7/8 until you go FI. With the 3.73s you won't miss the little bit of low end torque loss. It actually makes the car a little easier to launch.
#3
Bullitt Member
Thread Starter
If you're going FI, do the 1 7/8. I'm N/A and probably always will be, and I'm running Stainless Power 1 7/8. I did lose a little low end torque, but the mid-high RPM gains are crazy. You'll be just fine with the 1 7/8 until you go FI. With the 3.73s you won't miss the little bit of low end torque loss. It actually makes the car a little easier to launch.
#4
Bullitt Member
Thread Starter
#5
Bullitt Member
Thread Starter
If you're going FI, do the 1 7/8. I'm N/A and probably always will be, and I'm running Stainless Power 1 7/8. I did lose a little low end torque, but the mid-high RPM gains are crazy. You'll be just fine with the 1 7/8 until you go FI. With the 3.73s you won't miss the little bit of low end torque loss. It actually makes the car a little easier to launch.
#6
Cobra R Member
2011 - 1 3/4" Kooks, " green " catted X pipe, stock mufflers.
2014 - 1 7/8" Kooks, " green " catted X pipe, stock mufflers.
N.J. is an inspection state, their " green " cats are 49 state legal.
.
2014 - 1 7/8" Kooks, " green " catted X pipe, stock mufflers.
N.J. is an inspection state, their " green " cats are 49 state legal.
.
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tourer (4/3/17)
#7
Legacy TMS Member
Originally Posted by tourer
I have 3.15 gears, Auto Trans.
I'm running Solo Performance catback and high flow cats (welded to the collectors with a flange on the back so they mate up to the catback). The Solo exhaust is unique in that it has one central muffler with an x-pipe housed inside of the muffler. Dual in, dual out.
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tourer (4/3/17)
#8
Bullitt Member
Thread Starter
I hear (No pun intended) the H-Pipe is more of a throaty, muscle car sound but the X-Pipe give more HP on the mid and top end. Decisions, decisions.
#9
Cobra R Member
Yeah, I will be getting the GREEN Catted mid-pipe, I just haven't decided on an X or H pipe yet. I have a BBK X-Pipe on now with the stock exhaust manifolds and Roush Axle Backs, Sounds good but a little Raspy.
I hear (No pun intended) the H-Pipe is more of a throaty, muscle car sound but the X-Pipe give more HP on the mid and top end. Decisions, decisions.
I hear (No pun intended) the H-Pipe is more of a throaty, muscle car sound but the X-Pipe give more HP on the mid and top end. Decisions, decisions.
Most people prefer the sound of an H pipe, I could care less.
The hp advantage the X has over the H may be 1-2 hp..
.
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tourer (4/4/17)
#10
I Have No Life
Tourer - glad you are leaning towards headers now. Hopefully our PM exchanges have helped you out.
As I stated before, I have 1-3/4" with green catted H. I am also blown. The gains and sound are impressive. Did you call Kooks to get their advice? I recommend you do that. Tell them your current mods and your future mods, and they can advise you as far as what to get.
As I stated before, I have 1-3/4" with green catted H. I am also blown. The gains and sound are impressive. Did you call Kooks to get their advice? I recommend you do that. Tell them your current mods and your future mods, and they can advise you as far as what to get.
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tourer (4/5/17)
#11
V6 Member
Kooks 1-5/8"
I plan on keeping my '14 Coyote 100% naturally aspirated. I went with the Kooks 1-5/8", which hardly no one runs. I have an off-road H-pipe w/Roush Axle backs. The car dyno'd at 420 RWHP and 405 Torque. It's sounds like a BEAST. I don't think you should go any higher than 1-3/4". These cars need the back pressure for low end torque. It's just not necessary to go any thicker...IMHO.
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tourer (4/5/17)
#12
Legacy TMS Member
Originally Posted by CubAndy
I plan on keeping my '14 Coyote 100% naturally aspirated. I went with the Kooks 1-5/8", which hardly no one runs. I have an off-road H-pipe w/Roush Axle backs. The car dyno'd at 420 RWHP and 405 Torque. It's sounds like a BEAST. I don't think you should go any higher than 1-3/4". These cars need the back pressure for low end torque. It's just not necessary to go any thicker...IMHO.
#13
Bullitt Member
Thread Starter
Tourer - glad you are leaning towards headers now. Hopefully our PM exchanges have helped you out.
As I stated before, I have 1-3/4" with green catted H. I am also blown. The gains and sound are impressive. Did you call Kooks to get their advice? I recommend you do that. Tell them your current mods and your future mods, and they can advise you as far as what to get.
As I stated before, I have 1-3/4" with green catted H. I am also blown. The gains and sound are impressive. Did you call Kooks to get their advice? I recommend you do that. Tell them your current mods and your future mods, and they can advise you as far as what to get.
Thanks again.
#14
Bullitt Member
Thread Starter
I plan on keeping my '14 Coyote 100% naturally aspirated. I went with the Kooks 1-5/8", which hardly no one runs. I have an off-road H-pipe w/Roush Axle backs. The car dyno'd at 420 RWHP and 405 Torque. It's sounds like a BEAST. I don't think you should go any higher than 1-3/4". These cars need the back pressure for low end torque. It's just not necessary to go any thicker...IMHO.
#15
Bullitt Member
Thread Starter
I have to find a place with a Dyno myself, I would love to see what my Mustang would lay down for numbers.
#16
I Have No Life
Who's doing the install? Unless you have a lift, and have a LOT of tools and patience, I'd recommend having it professionally installed. I did ALL the mods on my car, except for those headers. No way Jose. FYI, it took my installer around 12 hours to completely do it.
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tourer (4/6/17)
#17
Bullitt Member
Thread Starter
No problem. You won't be disappointed. Quality has been great.
Who's doing the install? Unless you have a lift, and have a LOT of tools and patience, I'd recommend having it professionally installed. I did ALL the mods on my car, except for those headers. No way Jose. FYI, it took my installer around 12 hours to completely do it.
Who's doing the install? Unless you have a lift, and have a LOT of tools and patience, I'd recommend having it professionally installed. I did ALL the mods on my car, except for those headers. No way Jose. FYI, it took my installer around 12 hours to completely do it.
#18
I Have No Life
I assume you have videos of before and after? I love exhaust videos