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  #85  
Old 02-18-2015, 12:00 AM
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An exhaust shop gave me HUGE props for doing these myself. They said these are one of the worst headers to install amongst all cars.

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  #86  
Old 02-18-2015, 01:46 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

Listen guys. ARH. Are going to start a production line for 5.7l hemi Headers 2 weeks. Based from the 6.1 design. It will bolt on and connect to our Y pipe. They will also make with the EGR for earlier Wks and later wks. My truck is going in March 2nd. It's going to take 2 -3 weeks. Pictures and order forms on there website will follow. Contact me for more info!!!!


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  #87  
Old 02-18-2015, 01:49 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

So these will be bolt on, shorty style that will accept our existing mid pipes (with cats)?

That's pretty awesome. I'll try to contact them in the next few days to confirm!
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  #88  
Old 02-18-2015, 02:17 AM
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Originally Posted by piratius View Post
So these will be bolt on, shorty style that will accept our existing mid pipes (with cats)?

That's pretty awesome. I'll try to contact them in the next few days to confirm!
Existing mid pipes are trash due to being double pipped and not as big they look. Your helping the engine breath by trashing the old logs but leaving the rest? Its half a**.. plus install fees alone will cost more than the parts if they price them right.

Its your money and jeep. Do what you want.
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  #89  
Old 02-18-2015, 02:22 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

I wasn't aware they were double piped and not optimal (haven't dug into this motor at all yet, at the moment, it's 100% stock, as it's the wife's car, mine is a tj).

I figured getting the headers installed was the pita - in every other car/truck I've worked on, changing a mid pipe is easy compared to swapping a header. I'm keeping an open mind because I'll freely admit I don't know the particular downfalls of the XK platform.
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  #90  
Old 02-18-2015, 02:49 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

Quote:
Originally Posted by Sleeps View Post
Existing mid pipes are trash due to being double pipped and not as big they look. Your helping the engine breath by trashing the old logs but leaving the rest? Its half a**.. plus install fees alone will cost more than the parts if they price them right.

Its your money and jeep. Do what you want.

Absolutely correct.


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  #91  
Old 02-18-2015, 02:52 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

Quote:
Originally Posted by piratius View Post
I wasn't aware they were double piped and not optimal (haven't dug into this motor at all yet, at the moment, it's 100% stock, as it's the wife's car, mine is a tj).

I figured getting the headers installed was the pita - in every other car/truck I've worked on, changing a mid pipe is easy compared to swapping a header. I'm keeping an open mind because I'll freely admit I don't know the particular downfalls of the XK platform.

Wait so you have an XK? This is the WK forum. The frame design may not be exactly the same as ours. Not sure so anything we say may not apply exactly.


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  #92  
Old 02-18-2015, 08:57 AM
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Originally Posted by greenwayer View Post

Wait so you have an XK? This is the WK forum. The frame design may not be exactly the same as ours. Not sure so anything we say may not apply exactly.

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Keep in mind tho Josh that the xk and wk share a lot of stuff. I'm confident that the mods are the same in the xk as they are in the wk. Its different after that tho, the xk has a longer tail section
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Old 02-18-2015, 11:03 AM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

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Originally Posted by Strongjeff View Post
Keep in mind tho Josh that the xk and wk share a lot of stuff. I'm confident that the mods are the same in the xk as they are in the wk. Its different after that tho, the xk has a longer tail section

I know they are extremely similar. But isn't it possible that for the longer tail the frame rails have to be thicker and may interfere with the header? My headers are extremely close to the frame rails. Just something to be wary of. But your right they may fit exactly the same. It's just we haven't tried it.


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  #94  
Old 02-18-2015, 12:35 PM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

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Originally Posted by greenwayer View Post
I know they are extremely similar. But isn't it possible that for the longer tail the frame rails have to be thicker and may interfere with the header? My headers are extremely close to the frame rails. Just something to be wary of. But your right they may fit exactly the same. It's just we haven't tried it.
Yeah, that's why I'm asking a million questions about what works, what doesn't work, etc. Finding what has the most clearance around the frame gives me the highest probability for success! The Commander wasn't exactly a huge success, and so the aftermarket is even more limited for it than for the WK's. However, I know a lot of stuff does interchange between the motors, and they're supposed to be built on the same chassis.

Did the WK Hemi's come with Quadradrive (I or II)? The biggest hurdle I can possibly forsee would be if the XK and WK have different transmissions/TC's - would throw a huge wrench into the whole works!

In the motorcycle world, it's easy to find parts manuals that give out part numbers so you can cross check if the stock parts from one model are interchangeable with another (like the Buell Lightning & Firebolt have virtually identical running gear, it's just the tail section and fairings that are different). For the MOPAR stuff, it seems like the dealer isn't willing to look up numbers for you if you don't have the VIN number handy, which is pretty annoying.

Either way, I was looking around and saw people claiming to be .5 seconds faster in the 1/4 mile with intake/exhaust/tune, which seems pretty impressive - I can't imagine how much quicker it would be with a full exhaust!

-Brad
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Old 02-18-2015, 01:01 PM
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Quote:
Originally Posted by piratius View Post

Yeah, that's why I'm asking a million questions about what works, what doesn't work, etc. Finding what has the most clearance around the frame gives me the highest probability for success! The Commander wasn't exactly a huge success, and so the aftermarket is even more limited for it than for the WK's. However, I know a lot of stuff does interchange between the motors, and they're supposed to be built on the same chassis.

Did the WK Hemi's come with Quadradrive (I or II)? The biggest hurdle I can possibly forsee would be if the XK and WK have different transmissions/TC's - would throw a huge wrench into the whole works!

In the motorcycle world, it's easy to find parts manuals that give out part numbers so you can cross check if the stock parts from one model are interchangeable with another (like the Buell Lightning & Firebolt have virtually identical running gear, it's just the tail section and fairings that are different). For the MOPAR stuff, it seems like the dealer isn't willing to look up numbers for you if you don't have the VIN number handy, which is pretty annoying.

Either way, I was looking around and saw people claiming to be .5 seconds faster in the 1/4 mile with intake/exhaust/tune, which seems pretty impressive - I can't imagine how much quicker it would be with a full exhaust!

-Brad
Well swapping to headers is one of the biggest power mods to do on a stock hemi besides a tune. Heck even the v6 (3.7) picked up .3 tenths thru the 8th mile, roughly a half second in the quarter
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  #96  
Old 02-20-2015, 01:17 PM
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Re: SRT Headers + Mid pipes + custom cat back dual exhaust = DONE

I just scored some 06 WK SRT8 headers for $150 shipped. There's no way I'm even going to start messing with stuff until it really warms up (2* here last night!), and I'm going to keep my eyes open for some jeep SRT8 midpipes. If I can get the stock SRT8 catted mids for a good price (assuming they're not horribly restrictive), it'll let me buy (or build) a nicer 3" single cat-back and then modify it to work.

EDIT: I have a media blasting cabinet, so I'm very tempted to go pick up some new material and spend a few hours cleaning the heck out of these guys when they arrive, and then either having them coated or painting them with some VHT black header paint!
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