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Want some extra horses i my sts-92


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Is there any way to get some extra power from the 4.9 litres sts-92...changing airfilter and open up the exhaustsystem is one thing,,,but is there any other way?...does it exist anh chip that is worth the money? Ill be glad even for a couple of ponys...;)

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  • 3 weeks later...
what do you mean when you say to bring the timing to "14 degrees" and dont we all use premium fuel for our N*s

The timing is adjustable on a 4.9. It has a conventional distributor. The Northstar is distributorless, and the timing is not easily adjustable. No, you don't have to use premium in your Northstar. Many here run 87 octane with no spark knock and no problems. If yours doesn't ping on a lower grade fuel, it's money saved.

Jason(2001 STS, White Diamond)

"When you turn your car on...does it return the favor?"

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