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Old 09-28-2009, 11:56 PM   #1
TitaniumTT
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I run the LS1 coils on my 13B-RE now and I plan to upgrade to either the Yukon LS2 truck coils or a set of Bosch coils that from what I understand have a dyno proven record of increasing torque across the RPM band.

FWIW those LS2 coils sell from GM parts direct for ~$60 and I bet you could find the connectors for around ~$5 for all you people that want some better spark without a huge bite in the wallet.
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Old 09-29-2009, 04:23 PM   #2
mazdamaniac
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Quote:
Originally Posted by TitaniumTT View Post
FWIW those LS2 coils sell from GM parts direct for ~$60 and I bet you could find the connectors for around ~$5 for all you people that want some better spark without a huge bite in the wallet.
...which will require cutting/splicing the OE harness - something most people will NOT want to do for one reason or another.

To the OP - White spots on the bottom of the coils mean NOTHING.
Nothing at all.

The only real test of the coils is resistance/inductance across the ignitor (the FSM has the specs) and using a timing light on the coil wires and look for misfires, which can be done free-revving, though it is better to check under load.
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Old 09-29-2009, 08:29 PM   #3
05rex8
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Quote:
Originally Posted by TitaniumTT View Post
I run the LS1 coils on my 13B-RE now and I plan to upgrade to either the Yukon LS2 truck coils or a set of Bosch coils that from what I understand have a dyno proven record of increasing torque across the RPM band.

FWIW those LS2 coils sell from GM parts direct for ~$60 and I bet you could find the connectors for around ~$5 for all you people that want some better spark without a huge bite in the wallet.
yeah you can get the coils and the harnesses all on ebay actually....Just gotta fab up a bracket for it

but like MM said, not everyone likes to splice into their factory coil harnesses
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