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Chevy Silverado and GMC Sierra Accessories and Modifications

160 messages,  Last post on Nov 20, 2009 at 7:43 AM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Performance Mods, Exhaust, Truck

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#65 of 160 Question about flowmasters and glass packs by 20chevy01 Aug 31, 2007 (5:05 pm)
#66 of 160 Question about flowmasters and glass packs by 20chevy01 Aug 31, 2007 (4:33 pm)
Can anyone help explain the main differences? I understand that glass packs are louder, but I also understand if they are too loud then I can get a ticket. Today I had dual flowmasters put on with 5 inch tips but I am not satisfied with the sound. Can someone also explain what the difference is between 12 inch, 15 inch, and 18 inch glass packs are? Replies to this message: schlog (Aug 31, 2007 5:05 pm)
#67 of 160 Re: Question about flowmasters and glass packs [20chevy01] by schlog Aug 31, 2007 (5:05 pm)
Replying to: 20chevy01 (Aug 31, 2007 4:33 pm) Is the problem your having with the muffler set-up one in which it sounds like crap when it goes into the 4 cylinder mode? I installed a Gibson Cat back system that sounded horrid when it switched fro 8 to 4 cylinders and it was "supposed" to have been engineered specifically for my truck. They've received lots of complaints about their lousy system and have promised a replacement, but that was 5 months ago and they fired the warranty manager who made the promise of re-engineering and sending replacements to the customers who purchased them. My advice is to purchase from Corsa as they are the only system out there right now engineered to deal with the Active Fuel Management system.
#68 of 160 Anyone using a plow setup with this truck... by learncpr Sep 23, 2007 (9:30 am)
Has anyone out there investigated putting a plow on the new body duramax? Been getting some conflicting info. Looking into a crew cab but want to put a plow on the front. Probably just a 7'6" or 8'2" BOSS, but want to make sure the front end will support it and have no warranty issues with the dealer or GM. Is there a difference in the suspensions between the Classic Series(ok for the plow) and the NBS(not ok). Seems crazy to own a heavy duty pick up with an extremely powerful engine and not be able to plow snow with it. Thanks in advance.   KB
#69 of 160 Cold air intake on 6.0 liter by bodeen Oct 06, 2007 (4:09 am)
Has anyone installed a cold air intake on the 6 liter? Is it worth the $250? How about installing a new exhaust also? Replies to this message: obyone (Oct 06, 2007 8:16 pm)
#70 of 160 Re: Cold air intake on 6.0 liter [bodeen] by obyone Oct 06, 2007 (8:16 pm)
Replying to: bodeen (Oct 06, 2007 4:09 am) Well depends on what you're looking for. If you have a need for increase in noise then both would increase in cab noise or to some....music.   If you're looking for performance or mileage increase...well, save your money.
#71 of 160 no muffler by chevy4x4 Oct 08, 2007 (8:23 pm)
is it ok to run a 04 5.3l without a muffler or does it really need some back pressure. Thanks for your help? Replies to this message: obyone (Oct 08, 2007 9:43 pm) chevy4x4 (Oct 10, 2007 8:18 am) obyone (Oct 10, 2007 10:21 am)
#72 of 160 Re: no muffler [chevy4x4] by obyone Oct 08, 2007 (9:43 pm)
Replying to: chevy4x4 (Oct 08, 2007 8:23 pm) Yep it needs the back pressure. Replies to this message: chevy4x4 (Oct 10, 2007 8:18 am) obyone (Oct 10, 2007 10:21 am)
#73 of 160 Re: no muffler [obyone] by chevy4x4 Oct 10, 2007 (8:18 am)
Replying to: obyone (Oct 08, 2007 9:43 pm) Thats what I thought. Any idea on what would happen if the truck was run for a long time with out back pressure. Thanks Replies to this message: obyone (Oct 10, 2007 10:21 am)
#74 of 160 Re: no muffler [chevy4x4] by obyone Oct 10, 2007 (10:21 am)
Replying to: chevy4x4 (Oct 10, 2007 8:18 am) Besides having no power and struggling along all day long and causing unncessary wear on the motor and drivetrain I don't see any other problems.

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