good aftermarket spark plug better then stock ac delco's

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05-21-2012, 03:57 PM

GMtechmatt

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good aftermarket spark plug better then stock ac delco's

just like topic says what are alot of you guys running on a all motor setup for plugs? vehicle has stock heads and cam.

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05-21-2012, 04:01 PM

99Bluz28

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NGK TR5IX, its a Iridium tip plug for a stock heat range.

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05-21-2012, 08:35 PM

agenthol302

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^ this

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05-21-2012, 08:44 PM

TransAmWS.6

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TR55's work pretty good for N/A from what I've seen. I have them on mines and I'm pretty much a catback only car, they made a big difference.

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05-21-2012, 09:12 PM

VandykeT/A

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I would run a NGK TR55s. I wouldnt say they're better than a AC Delco but they're cheaper and just as good imo.

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05-22-2012, 07:57 AM

mjs1012

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I got ngk tr55s and haven't seen any problems along with msd wires.

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05-22-2012, 08:12 AM

Bramlok

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Just about everyone on here runs the TR55's without a problem.

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good aftermarket spark plug better then stock ac delco's

good aftermarket spark plug better then stock ac delco's

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