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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Accessories and Modifications
158 messages, Last post on Jul 12, 2009 at 9:11 PM
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Replying to: bodeen (Oct 06, 2007 4:09 am) If you're looking for performance or mileage increase...well, save your money. |
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is it ok to run a 04 5.3l without a muffler or does it really need some back pressure. Thanks for your help?
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Replying to: chevy4x4 (Oct 08, 2007 8:23 pm)
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Replying to: obyone (Oct 08, 2007 9:43 pm)
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Replying to: chevy4x4 (Oct 10, 2007 8:18 am) |
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I have a 2000 GMC Sierra 4.3L V-6 step-side single cab truck. I am planning on doing a tune-up on my truck and was wondering what all i should do? Its got 113K miles. I also want to try to beef up the engine a little. Maybe a cold air intake, headers, and exhaust. Any suggestions on what kind of exhaust will get me loudest sound but stay legal? Also what else could I get to suck some more power out of that v-6? |
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Replying to: dhillger (Oct 18, 2007 11:31 am) Headers and cold intake won't do much for you either I'm afraid. However, gears might. Sorry if this post isn't what you want to hear. As far as tuneup replacing the plug and wires is about all it takes in that department.
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Replying to: obyone (Oct 18, 2007 1:28 pm)
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Replying to: dhillger (Oct 18, 2007 1:39 pm) Essentially you might consider changing the whole rear end. The RPO code in your glovebox will tell you what rear you have whether it be 3.23 3.73 or 4.11. An upgrade to a 4.11 will give you better acceleration off the line while costing you a little more in gas mileage. I wouldn't recommend a supercharger as the added compression of the forced induction could wreck havoc on a truck with over 100K miles. The rearend swap might be the most cost effective solution as I'm sure the junkyards have a huge amount of GM rears in their yards. Check here for rpo codes. |
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