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  1. #1

    Default Vibrating noise near the front at certain speeds since i installed my x-pipe????

    I was wondering what this could be when i'm going slow pulling out the drive way there is a vibrating noise up where the driver side is and idk what it is. This doesn't do it at high speeds but sometimes after driving and i stop it kinda vibrates and rattles some. Does anoyone know what this could be or experienced this before? Thanks, Jake

    2008 Chevy Silverado Ext. Cab Lt Z71 5.3 V8
    7.5 Inch Rough Country Suspension Lift
    RBP Replica Grille Black w Chrome Rivets
    Recon Smoked Cab Roof Lights
    N-Fab Powdercoated Gloss black Cab Length Nerf Steps
    5% Tint over 20% all the way around / 5% Eyebrow Strip
    AVS Smoked Window Visors
    Z71 Stickers Black & Metallic Silver
    Tow Mirrors / Smoked Turn Signals
    XM Satellite Radio Fin / Color Matched
    Interior Plastic Pieces / Color Matched
    Power Acoustic Tweeters
    Painted Bowties / Color Matched
    Painted Door Handles / Color Matched
    Smittybilt Bull Bar / Color Matched
    Custom Rolled Edge Exhaust Tips / Color Matched
    Custom 2.5 Inch Cat Back True Dual Exhaust
    Flowmaster Super 40 Series Dual in / Dual out
    Magnaflow Tru-X Pipe
    K&N Air Filter
    18x9 Rockstars Machined Black
    Center Caps / Color Matched
    33.13.50 Nitto Terra Grapplers
    New Front Wheel Well Liners
    Eagle Eye Black L.E.D. Tailights
    Eagle Eye Black L.E.D. Third Brake Light / Smoked
    Eagle Eye Black L.E.D. Halo Projector Headlights
    Notto HID Kit 10,000k Low beams
    Recon L.E.D. Light Bar
    Buschwacker OE Style Tailgate Cap
    AMI Gloss Black Antenna
    Debadged Chrome Lettering
    Door Molding Removed

  2. #2


    Has it going on for a while, or just since you put on the nurf steps??
    Does it sound like a metal rattle or plastic?

    2009 Silverado 1500
    5.3L / 3.73 G80 / 4spd / 4x4 / LWB/ Ext Cab / HD Tow-Haul
    2.25in ReadyLift Level Kit / 3in blocks/ 3500lb HellWig / 265x65x17 Wrangler AT
    K&N Filter / AirRaid MIT / MagnaFlow 2.25" Dual Exhaust / HyperTech MaxEnergy

  3. #3


    Yeah it was happening before i put on the nerf steps so i know it isn't them at all. This happened when i installed my x-pipe and didn't do it when i installed the muffler right before it. This sounds like metal rattling and vibrating some just dont know what it is?

  4. #4


    have you checked all your exhaust mounts? also i was having the same issue " at idle and pulling out" my Exhaust tips were rubbung the bed? idk if its the issue in your case just food for though ?
    2004 gmc sierra ext z71 5.3
    KB racing hot pipes 3.5" : 76mm turbo: 4l80e : Circle-d 2b multi disk :Walbro 400 : Racetronix Hotwire kit : TB coolant bypass : Nelson 91 Pcm : Tr 220 Cam : Brian Tooley double springs kit : Ls7 Lifters : Stage 3 heads : Custom Intake Manifold :80lb Injectors : Ported TB : 40k tranny cooler: Plx dm-100 gauge: Auto meter fuel and boost gauge:
    Custom Speedo : Leveling kit :Smoked led taillights and 3rd break light : Black projectors and fogs with hids : Blacked out grille : 33's on 16's : Clarion flip screen: sound que 12" subs: clerion 6x9's : Memhpis amps: Alpine componet set.
    Future mods... Detriot tru-trac, deviels own stage 2 meth kit, MORE BOOST!!!!!!!!!!!!!!

  5. #5


    Yeah my tip's don't touch the back end of my truck they are angled out and down enough under the bumper and ligned up so that's not the deal. Idk what it is it only does it when i start going and stop but at higher speeds not a sound at all. I also gotta take my truck back to the muffler shop the guy who put my x-pipe on didn't do it worth a damn. I usually take it to another place but they were oacked so did it at this place. Well to start off he cut my exhaust pipe to put the x-pipe in and didn't measure it so he had get part of a exhaust pipe to cut in the shop and come to find out i look under there the exhuast pipe is bent really bad so i know my flow isn't any better since it's almost like a s shape! I gotta get this done sometime this week and i will not be paying to get this redone being he did the ****ty work lol.

    ---------- Post added at 03:14 PM ---------- Previous post was at 03:04 PM ----------

    Thanks man i guess i'll let it run one day and see what it does and if that's the case just get it welded when i take it to get my exhaust pipe redone where the guy did a ****ty job ha.

  6. #6


    Check the cross over pipe near the trans for the pipe hitting a heat shield.

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.

  7. #7


    Thanks man i'll check that too sometime tomorrow i guess. Also it sounds like it's right where my cats are?

  8. #8


    Theres heat shields around the cats and the trans and maybe when they installed the "X" pipe the exhaust is rubbing one of those heatshields. May be rubbing all the time but you here it at lower speeds because of less engine and road noise.

  9. #9


    okay man i appreciate it i will check it out sometime tomorrow and see what the deal is shouldnt be too much ha

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