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Discussion Starter · #1 ·
Hey guys, are there any ignition upgrades to put on a '99 gmc 4.8 liter engine, to add horse power?
 

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HOT AIR BALLOON OWNER
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But the stock coils output some pretty stout juice from what I've been told. I don't see a need for it, just get you some quality wires and plugs and you'll be good to go like 02denali said. :shake:
 

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The only "upgrade" that I've heard of comes from Nology, but everything I've read says that they are crap.

Unless you're running some SERIOUS horsepower, the stock coils with some good plugs and wires behind 'em are just fine. I went w/ Taylor wires and NGK plugs.
 
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