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Old 02-24-2011, 03:58 PM   #1
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What Headers do I need for a 4.2L with Mopar MPI

Hey guys,

I've got a '90 YJ and have installed the Mopar MPI on it (Love it BTW). I'm looking to install some aftermarket headers on it. Does anyone know if I should order headers for a 4.2L motor, or 4.0 motor? How about brand? I don't have a ton of cash to spend, but i plan on having this Jeep forever, so I don't want to go too cheap either.

Thanks a ton!
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Old 02-24-2011, 04:39 PM   #2
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they all do the same job for the most part. I have borla and they sound ok but they hit everything and are a pain. Summit racing headers are pritty nice
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4.2l , headers , jeep yj , mopar mpi

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