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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado and GMC Sierra Exhaust System Questions
37 messages, Last post on Oct 13, 2009 at 11:32 AM
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Hey I'm new to this. I've got a 2007 Chevrolet Silverado with the aluminum block 5.3 litre engine. I bought it new and had a flowmaster dual exhaust system installed on it when i first got it. Every since I had it installed, the engine kinda stutters, i guess you could say, but it is more noticeable when you around 50 mph or so, and when you get over 60 mph the engine will clear up and run smooth. Has anyone else had this problem? I would appreciate some help. Thanks!
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Replying to: Brandon4387 (Dec 04, 2008 4:12 pm) A Borla or Corsa system designed for the Silverado would deliver a little better performance. |
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I forgot to mention that it is a silverado classic, but anyways, I think that flowmaster has the best sounding muffler tone of any exhaust system, and also yes it was installed by a local muffler shop and I'm not sure if it was specifically for my truck or not. It's almost like you're just feathering the throttle untill you get to about 60 mph. You can only tell it when it is in overdrive and the transmission sometimes shifts from 3rd gear straight to overdrive and skips 4th gear. I will check underneath to see if I can find an exhaust leak but I cant hear it from outside the vehicle. Thanks for your input
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Replying to: Brandon4387 (Dec 05, 2008 2:16 pm) |
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I have a 2008 GMC Duramax 6.6 LLM and I want to do something with my exhaust and was wondering what would happen if I were to cut out my cat and straight pipe it from the turbo back. I have recieved several different answers when I ask what it will do to my truck. I am not worried about the warranty, unless it will cause damage, anyone that can give me a straight answer will be greatly appreciated, also if it wont hurt my truck, how much louder will it make it. Thanks
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Replying to: klobear (Jun 01, 2008 3:42 pm) |
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Replying to: hack5666 (Jan 26, 2009 6:07 pm) I understand that there will be a smog check required here for my '07.5 LMM starting next year. The previous owner went to an aftermarket exhaust from the DPF back that wont affect the test. There are folks at the dieselplace.com site who have done and reported on multiple combinations of exhaust mods for the various Duramax generations. I am inclined to believe that it is an aesthetic thing 'cause I REALLY don't see ever reaching the break-even point on the ROI. I think it would be a LOT more miles than I will put on it. Even considering that I will be pulling a trailer most of them. Yes, I like the exhaust sound but would not consider spending for the conversion. Also, I have no idea what the original exhaust sounded like. |
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i have a 2002 chevy silverado. i already have dual exhausts on it. i have a muffler and a cat. im taking the muffler off and putting in a y pie. will doing that mess anything up with the truck. or will every thing stay the same but it will just be louder?
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Replying to: olemissrebs (Jul 01, 2009 2:33 pm) |
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