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PLM longtube header install

So Saturday decide to install my PLM longtube headers, along with some maintenance items. Jacked the car up on all 4 tires with jackstand and to be on the safe

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Old 06-03-2024, 04:56 PM   #1 (permalink)
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Default PLM longtube header install

So Saturday decide to install my PLM longtube headers, along with some maintenance items.

Jacked the car up on all 4 tires with jackstand and to be on the safe side I put retaining wall pavers under the wheels for extra safety along with 2 jacks for triple safety

Removal of passenger side:
For the passenger side super easy and simple to do. My only issue I had was when removing the heat shield I couldn't get one of the bottom heat shield bolt off, but I was able to bend it out of the way lol. Once I did that all I needed was a 14mm socket on a long flex head rachet and I had it out with 45min. Disconnected the 02 sensors, Then crawled underneat and removed the 3 test pipe bolts and was able to remove it all in one shot.

Driver side: this one is not for the faith of hearts and a lot of patients. Which was being tested on my end

Driverside is totally manageable tho! But it is a pain
This one took me about in total 4hrs to remove of that. Really tight area to work with, Especially you have ac lines/and coolant pipes in the the way. So just have to be patient. Again your fighting the heat shield bolts off and you won't be able to take it completely off. So what I did was take the bolts off and just moved it out of my way as I was taking the exhaust bolts off. With a short 14mm rachet and a small extension and a flex head 1/2 drive long handle racheting I was able to get all the bolts off slowly. Now you need to pull the driver's wheel off to take the steering shaft couple off the steering rack to get better clearance ( still tight tho). On this side you'll need to take off your cat or test pipes. This side you can't take it out in one shot. With the test pipe or cat removed and the steering shaft out of the way, you'll be able to kind snake and wiggle the manifold out. This took me roughly 15min wasn't terrible.


Passenger side LTH install
This was actually pretty easy, goes right in, had it bolted with in 45min. Will say cylinder 6 bottom you need to use a 14mm stubby and Taking your time and done

Driver side LTH install
Going in is actually not bad at all 4 out of the 6 bolts are easy to access with a 14mm short with short extension and 1/2 long flex head handle rachet. Cylinder 6 bolt you'll need to reach from the bottom with a racheting wrench. Cylinder 4 bottom because the pipe are fatter I was able to get a socket in their. That stubby open end does wonder.

Overall good days work with tons of patients.

Anyone need help or advice pm me I'll do the best I can
I don't have any sounds clips just yet because I'm doing maintenance to the car

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Old 06-03-2024, 05:12 PM   #2 (permalink)
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Nice write up!

Let us know how the ride changes for you going for TPs to LTHs.
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Old 06-03-2024, 05:35 PM   #3 (permalink)
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So I seem to be the only one at the moment with PLM LTH with top speed pro 1 exhaust on E85 with Specialtyz z tune.

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Old 06-03-2024, 05:36 PM   #4 (permalink)
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Quote:
Originally Posted by ZontheRocks View Post
Nice write up!

Let us know how the ride changes for you going for TPs to LTHs.
I got yea. I will be a few more days

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Old 06-05-2024, 09:23 PM   #5 (permalink)
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So I did run into one problem on the passenger side, trying to wrap my head around this one. I guess having a after market exhaust running H pipe style effects the lineup. Which doesn't make sense to me because it lined up perfectly with running OEM header and cat, then OEM headers with test pipes..

So taking a better look it's definitely a manufacturing issue because the flange is legit hitting the frame of the z. So I reached out to PLM but I don't think imma get anywhere with that one (bought them 2 years ago, got around to installing them today) anyways. Brained stormed for a good 2 days because this genuinely freaking bother me to the point I couldn't sleep lol. So what I did was grab a strap and heat up the pipe from the inside and rachet and massage it into place and I was able to get it, legit just finished it 20min ago.


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Old 06-10-2024, 10:06 PM   #6 (permalink)
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