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Problem aft, header and y pipe install

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Problem aft, header and y pipe install

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Nov 3, 2008 | 04:41 PM

#1

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From: new iberia la.

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Problem aft, header and y pipe install

kooks header and y with high flow cats, SLP LDMTH 1 Cat Back.about 5 months ago i narrowed my sparkplug gap to .040 at the reccomendation of this or another site. It seemed to be ok in stock form but after installation i have a check light and lots of fuel consumption, what would the correct gap be? .050 .055?
Stock LS 6 ENG.

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Nov 3, 2008 | 05:48 PM

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i think stock is .060"

generally the ngk tr55s are gapped at .055" which is sufficient

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Nov 3, 2008 | 06:57 PM

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BUy some NGK TR55's.....they already come pre-gapped

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Nov 6, 2008 | 11:45 AM

#4

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From: new iberia la.

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the light came back on,burning[wasting] lots of fuel, so the ride is at the dealer now, either bad plug wire, bad coil or reprogram to compensate for mods/ any other suggestions

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