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Paxton sanity/fitment check please

jellyrole

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Happy Easter or Happy Sunday fellow Mustang nerds! Looking to get eyes on this Paxton 1200SL install for my 2017 GT before I tighten everything up. Any feedback or suggestions or hey you messed that ups are welcome.

Thanks guys!

https://photos.app.goo.gl/CLk8WJL8L4aAufVA9
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eisenhauer01

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Looks good, I just did a 2200sl on my 15 over the winter. Make sure your intercooler piping is not touching any of the body.
 
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jellyrole

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Thank you. I was able to avoid all body contact. The only thing I'm touch is the ac condenser line from what I can tell. I'm going to go ahead and tighten it all up.
 
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jellyrole

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Awesome thanks for that. What did you do about the wiper fluid reservoir? Think about zip tieing it back under more towards the headlight
 

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eisenhauer01

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I originally did that. It would have worked fine, but I ended up buying all new silicone boots for all connections and they were a little longer. This gave me a little more room on it's own.
 
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jellyrole

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What did you do about the flap on the fan shroud? Can't decide if I should leave it closed, break it off, or prop it open. The radiator hose is blocking it

IMG_20260405_150106.webp
 
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jellyrole

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Did you do an intake for it just a filter on head unit? Not sure if I'm supposed to do the air inlet assembly instructions portion or not
 

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jellyrole

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Do you have a good picture of red?
Edit by good I meant close up

I don't have anything plugged into that pcv port on blue.

And what's yellow?

Screenshot_2026-04-05-17-01-07-13_3aea4af51f236e4932235fdada7d1643.webp
 

eisenhauer01

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I did the catch can and it's hooked up to both valve covers as you can see.
I did the vacuum a little different than most but it worked out really well. I'll try to get a pic in a little bit.
 
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jellyrole

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Beefcake told me to ignore the air inlet instructions but that also leaves the double check valve thing in the way. Thank you. Much appreciated. It's so close

IMG20260405171139.webp
 

eisenhauer01

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I put an 18+ intake on my car.
I got rid of the double check valve thing.
Vacuum is supplied as follows:
-Evap for Evap. I purchased the 18+ purge valve, evap line, and pigtail connector for a clean install.
-Vacuum 2 for the brake booster (has a small in-line check valve. Also I'm feeding my vacuum/boost sensor here as you can see.
-PCV for the BOV reference
-Vacuum 1 is blocked off. Note, this is not actually vacuum, its just a pass through tube for the IMRC's on the back of the intake (which I have locked out).

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qwiknotch

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Those filters are a huge restriction, in my experience.. You are better off putting the paxton elbow on it with the stock airbox. . On the dyno, I made more power with the stock airbox.
I also recommend getting tbolts and removing the worm clamps
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