Thread: LS coil packs suggestion for L33
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Old 06-14-2017, 11:23 AM
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Default LS coil packs suggestion for L33
My 2005 GMC Sierra is getting a little sluggish. It has the 5.3 aluminum L33.

I am thinking about replacing the coil packs, plug wires, and spark plugs.

Any suggestions on brands? Or other parts tp change for maintenance?

It has a K&N filter in the stock housing, and I change the oil regularly with Mobil1.

BTW it only has 65K on the truck...

Thanks, Joe
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