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Found 127 results

  1. All - I have for sale the Borla Cat Back Exhaust in Touring Edition: PN 140535 on the Borla website. I had this installed new from the factory, the Touring is a fantastic, rumble... I would call it just the right amount of deep sound. You won't believe how nice it sounds over factory exhaust until you try it. It is in great shape (almost like new) as you can see from the Pics, I polished the tips and the muffler to show you just how clean it really is. The rest of the tubes were left as is, since you will be installing it and getting it dirty anyway. I live in South GA for Pickup, 30 min north of Tallahassee. Price is $800 if I ship it, or $700 local pickup. Let me know if you have any questions ! Link to Hear the sound: https://www.borla.com/products/silverado_sierra_1500_catback_exhaust_touring_part__140535.html
  2. T1 Exhaust

    Cutout system installed on my Trail Boss
  3. I just bought a 2015 GMC Sierra Double Cab 2WD 5.3L and I'm trying to find a full headers back exhaust system. If it helps any to tell what i like, I like the sound of my dads F150 5.0L with long tube headers and mbrp exhaust. I like loud but not obnoxiously loud. I like a nice sound of a V8.
  4. Sierra DeMod Sell

    So finally have everything off of my truck and pics of everything. Prices are obo plus shipping. If post not allowed please let me know and I will delete. Thanks. - RX Speedworks catch can with check valve and clean side separator. Has the OEM connectors for the PCV connections $200.00 - UPR Catch Can with check valve and OEM connections. Only had for about three weeks. $200.00 - Superchips F5 GM Flashpaq handheld tuner. Primarily used to turn off AFM and adjust for tire size. Has pre-loaded tunes and able to change parameters such as gear, AFM, speed limiter, etc. Comes with original box and manual $300.00 - 2014 and up OEM crew cab undersea storage. Prefer not to ship this item but will at buyers expense. But will meet if you are near Augusta, GA-Atlanta, GA-Columbia, SC $140 - Volant CAI intake 5.3L. I removed the filter it came with and upgraded to a RotoFab dry filter. Comes complete with everything you see and OEM connectors. Would make deal with someone if they wanted this and the RX Speedworks catch can as the clean side separator would work with it. $300.00 - Doug Thorley Tri-Y headers. Will work with 5.3L and the 6.2L ecotec3 engine. However if you have the 6.2L the connection at the fatback needs to be modified. $600.00 - GM OEM Rosen DVD Headrest AV-7950H 8K-GMCHEV-B38-S1. The primary headrest is the DVD unit while the secondary headunit has the USB input and iPOD docking station. Has built in video games and will come with four headphones(two brand new never used), two video game controllers (new just tested), the accessory wires if you wanted to add a video game system or something along those lines. Im at $650 on these will not separate. Selling the whole kit. Thank you for your interest.
  5. Hi, Has anyone else noticed the smell of exhaust fumes from other vehicles in your cabin? I haven't noticed this issue anywhere near as bad in previous vehicles. Isn't the cabin filter supposed to filter out the exhaust gases? I haven't checked to see if it's even there(behind the lower glove department?). Is this normal?
  6. I have been told by my dealer that gm performance exhaust will not fit the 2019 custom trail boss - tried to email gm and they refer back to dealer - anybody overhear If they will release one ?
  7. Thinking about doing an intake, exhaust, and tune to my new-to-me 2017 Sierra 1500 5.3L 8 speed. I miss the throttle response my 2013 6.2L had, it would lurch forward at the slightest tap of the gas. I also want to hear the engine, its so quiet! Cold air intakes seem to be disputed for having any performance gains, so are they really worth the $$$ in terms of better air flow? healthier engine? sound? any words of wisdom? Your $0.02 is always appreciated! I'm looking at the Magnaflow 15267 catback as it seems to sound pretty good for what I'm going for. I've read that there is a flap in the factory exhaust system that creates back pressure for AFM shift into V4 mode. I do like V4 mode and would not want to go away with it. How can a catback system integrate this feature? Also, what would be the rough performance improvements if any from a catback exhaust? Any other options that would sound similar and perform better/keep V4 mode for around the same price as Mgnaflow (~$800)? As for the tune, I know ZERO about tuning but do want to get rid of the rev limiter, speed limiter, get some performance gains without having to put midgrade or premium fuel in. How does the tuning process work? about how much do they cost? how can it be adjusted in the future? I assume anything like this would void some sort of warranty? Anyone do something similar and can attest to their experience with an intake, tune, exhaust?
  8. So I just got my truck GMC Sierra SLT Premium plus package with a 5.3l has been 3 months and put 8k miles on it, as you can tell I daily drive this thing. I love it, best choice i ever made after previously owning a dodge charger RT. So I've been looking up exhaust videos and I'm not sure which direction to go. If you guy have ever heard of the 2013 Yukon Denali's those stock sound deep and perfect. Thats what I'm trying to aim for, don't want any drone because its a daily truck go for a lot of long drives. What would you guys suggest? I'm leaning towards a resonator delete or just muffler delete.
  9. Decided to make a new thread about headers. So I am looking for ways to add some umph to my truck. I have seen that long tube headers can add low end torque and HP. Anyone run with these types of headers? What kind of power gains have you seen? Hooked to stock exhaust or full custom?
  10. Alright, so I've literally spent probably 8 hours or so researching on this forum about exhaust and intake upgrades. (I have a '17 Sierra 5.3) Obviously the CAI horse has been beaten to death on pretty much every forum immaginable. I'm a Mechanical Engineer by trade so data goes a long way with me. From what I've seen, on this new Ecotec engine, you don't really gain a whole lot with a CIA, many have just resorted to the Airaid MIT, but even that only see's minimal improvements and only around 5,500 rpm. So I just opted to go with the AEM dry filter for a bit more flow, and call it a day. I've even thought about doing the airbox mod, but when I got everything apart, the cross sectional area of the square hole in the airbox looks to be about the same as the cross sectional area of the intake tube diameter...So whats the point? (unless I'm missing something). So I just left it at the new AEM filter and called it a day. I have the level and 33's on this truck, so I'm not looking to drag race it. Just get it to breath as well as possible. Any input or opinions on this setup would be appreciated. Now on to the exhaust. I plan to just do a muffler swap, so I bought a new Borla Pro XS. I've seen a TON of debate on "leave the resonator, remove the resonator, leave the flapper, remove the flapper". I dont want this thing to be loud. I just want it to sound good and "natural". So as I said, I just opted to leave everything stock and replace the muffler. HOWEVER, I scooted under the truck this morning just to take a look, and now I'm completely baffled (pun intended). It looks to me like the resonator on this truck is AFTER the muffler!?!? You have the giant oil barrel shaped muffler with the flapper just in front of it, then downstream you have a (roughly) 8" diameter round barrel which I can only assume is the resonator? So my question is, is that correct, or am I missing something? ...maybe I have it backwards? Also, is leaving the flapper and resonator the correct thing to do if I just want a slight sound upgrade? Thanks guys!
  11. Im think about redoing my exhaustas fuels with glass packs and the glasspacks I bought is 3in but thinking bout getting 2.25 adapters for them then run 2.25 all the way back would that be to small?
  12. Hello, Everyone Just Wanted to share a video I was meaning to make for some months now, I lost a GoPro Camera on the process, so I had to save for a new one to make this video. If you like the video, a subscription to my YouTube Channel is always appreciated! This is my exhaust set up -Speed Engineering Long Tube Headers (1 7/8" Primaries to 3" Collectors) -Dual 3" X Pipes -Dual 3" Magnaflow Mufflers (PN 14419) - True Dual Exhaust to 3.5" Tips This is how she sounds while towing: Brief Exhaust clips: Thank you all for watching
  13. Hello all, newbie here. I just bought my first ever brand new vehicle. I always bought a year or 2 old vehicles but, with the rebates GM were handing out new was as cheap as used. Anyway I have a blue 2018 GMC Sierra 1500 SLT. I love it! Things I've done so far is...2.5" rough country leveling kit, moto metal 970 rims, nitto ridge grappler 275/60/20 tires, few other minor things. I wanted ya'lls thoughts on adding flowmaster exhaust, k&n intake, color matching front and rear bumper (I know paint wont hold well on chrome but will eventually get after market front and rear bumpers anyway) want to color match the mirror caps, door handles, front grill, and paint the chrome running boards black. I plan on removing all the badges and chrome door trim as well. Thoughts???
  14. So I have a 04 Silverado crew cab z71 4wd. I have a 2.5 inch lift, cold air intake, and 285/70/17 mud tires. I’m looking to turn my truck into a little bit more of a power house. I plan on getting all new spark plugs (need help with which spark plugs) and a whole new exhaust from the headers back. (Also need help finding that). I’m trying to get the most performance out of these upgrades as I can as I am getting a inTune i3 8245 Platinum + Custom DiabLew Tune as soon as I decide what spark plugs, and full exhaust system I plan on getting. I want the most performance I can get out of these upgrades.
  15. I picked up a 2018 Silverado custom with the 4.3 a few months ago, i love it so far but the only thing i dont like is that it is way to quiet compared to my old silverado. Has anyone put an exhaust on that makes a little more noise but dosen't make the v6 sound like a subaru? I want some noise out of this beast!
  16. Ok, need some opinions, advice, ideally some experience. I've been through many many mufflers ranging from "Wake the kids across the house when you start your truck in the morning" to "is that a stock muffler I just spent $150 on?". I now have my first new truck ever, a 2018 GMC sierra 1500 crew cab all terrain with the 6.2. I love the truck and I'm looking to do a custom exhaust only because of the look and not the sound (maybe 75/20 because this truck has no tone at all). You get the idea...I want it quiet. The exhaust I want to build is a side exit, dual tip, before the right rear tire. I don't like the look of the Gibson setup and I'm concerned it would be way too loud anyways. I have a couple questions and would love thoughts and opinions. 1. How far forward can I go with a muffler without issues? If I do the corsa twin tip I'm going to need a lot of space due to the design of that particular tip (which I like a lot). Does moving the muffler towards the front effect sound at all? 2. If I want zero interior drone, what do you think about a big 22" magnaflow and right next to it weld in the factory rear resonator? That thing is straight through and if I had the room under there to do the pipework needed for the side exit, I would think that the combo could provide a little more V8 tone but tame it down considerably. I assume most of you will hate this idea but could it accomplish what I'm after? Thanks,
  17. Has anybody ever put any flowmaster or other type of exhaust on a Silverado with the eAssit on it . Wondering if it sounds weird when it turns back on at the stop sings
  18. Which Headers do you recommend for a truck equipped with the 6.2 liter L86 engine? 1.Which ones do you have? 2. Why do you endorse them? -Cost -Quality -Ease of installation -Size (1 3/4 Vs. 1 7/8) -Performance -Sound (tone quality, volume, drone) -Longevity -Value (cost, complications and effort Vs. added performance and enjoyment -Downsides 3. Associated exhaust parts 4. Any other special considerations i have a 2015 High Country 4WD 1500 CCSB with the 6.2. I have decided to possibly “tune it up”. If it is financially feasible and will add to the daily driving enjoyment of this truck. It is not a “pig” by any means, but it lags a bit, especially with the larger/heavier tires and their effect on gearing. I think it would be greatly improved by being “woken up” through a few steps. I am considering: Banks CAI Ported/Polished stock throttle body BlackBear Tuning 194* GM Thermostat and slightly more aggressive fan profile in tuning. LongTube Headers with Cats Dual Exhaust Mufflers and Resonators - I have had good luck with and like AERO Turbine mufflers out of Utah. I was considering two of his AT3030 mufflers and two of the AR30 resonators, somewhere over the axles, with L/R tips behind the rear wheels. In looking at my plans, I think that the exhaust without mods would be a bottleneck. I currently have removed the factory muffler and flapper and put back an Aero turbine 3030XL or maybe 3535XL muffler. (I don’t remember) What at do you think of my plan? What is good or bad? Help me decide what to do. Headers and a full exhaust change can become quite expensive, if the gains aren’t that significant, maybe this part of “the plan” can be changed. If you feel that headers are not needed, please share. Please try to be clear, concise and factual in regards to your Header choices. Let’s not get too derailed discussing just mufflers. Hopefully this thread can help many others with this particular decision. I searched the exhaust thread, but it is daunting to find this particular information. Thank you for sharing your wealth of knowledge and experience. The members here make this forum the best of its kind for our trucks. -Darksky
  19. Ok so we’re getting ready to put the replacement engine in my 2001 2500HD 6.0 and one of the exhaust bolts was broken of like they do. So we removed all the bolts and are going to replace them. So my question is where should I get the new bolts GM replacements or get them from somewhere else and use stainless or grade 10.9. And do we use anti-seize or not?
  20. Has anybody done a muffler delete then moved onto the GM Borla? I just traded in my early 2014 5.3L Denali to a 2016 6.2L Denali. I had Borla S Type on my 2014 5.3L and loved the sound around town but couldn't stand the constant hum on the highway. I just did the muffler delete on my 2016 6.2L and like the sound and how silent it is on the highway. But I do miss the Borla sound. Is the GM Borla just as quite on the highway as a muffler delete with flapper open and resonater still in the chain? Thanks!
  21. I have a 2008 GMC Sierra with the 5.3 liter engine. I hear a rattle coming from the underneath of the truck only at 1000-1500 RPM’s. I checked for loose clips and stuff but I have found nothing. It doenst affect the way the truck runs just the sound. Also, the temperature doesn’t affect the rattle.
  22. Ray’s 2014 Chevy Silverado

    Hello everyone, welcome to my build thread! This thread will be updated as I go. If you have any questions and/or concerns, feel free to comment below or PM me. Thanks, I hope y’all like it! At the same time, I’m also trying to find a fix to a lot of issues with the truck. Many that others are experiencing as well, and some that seem to be isolated, so stay tuned. I’d love to hear your solutions to common problems found on our trucks. The story began when I brought her home on the night of January 3rd, 2017... Current Mods (as of 04/08/2018): - Black factory Bow Ties - 20% Suntek Films tint on front windows - 65% tint on windshield - AuxBeam LED Low Beams, High Beams, and Fog Lights - MHtech LED Reverse Bulbs - MHtech LED Cargo Bulbs - Flowmaster 40 Series Original + resonator Delete. - Rear Wheel Valence delete - Step Bar delete - Front Valence Delete - AIRAID MIT + K&N HIGH FLOW FILTER - Hankook Ventus ST RH06 285/45/R22 - RGB LED Footwell lighting - LED License plate bulbs Planned Mods: COSMETIC - 5% over 20% tint all around - 45% Windshield tint - Front Valence Delete - Color Matched Bumpers - New Generation Tow Mirrors - Rear Window 3-Piece to Single-Piece conversion PERFORMANCE - K&N cabin air filter - Oil Catch Can - CAI Enclosed Box - Diablo inTune i3 (or Trinity) - Rear Traction Bars - High performance driveshaft LIGHTING - 30” LED light bar behind grille - LTZ Style Black projector headlights with clear turn signal lenses AUDIO/Misc - Audio Upgrade with a ported 10” subwoofer - Escort Passport radar detector - Blackvue front and rear dash cams SUSPENSION - 3.5” Lift Kit - 20x12 -44 Fuel Maverick D610 - 305/50r20 Nitto 420s Mechanical Points: - Running on Castrol High Performance Full Synthetic Oil - Fueled with 93 Octane Cleaning Products: Limitless Car Care (coupon code in signature) - Waterless Wipe - Swift Shine Meguiars - Gold Class Shampoo & Conditioner - Hot Shine tire coating Armor All - Interior Original Protectant Other - Formula 88 Cleaner & Degreaser - Lexol Leather cleaner and conditioner for my leather seats Tools I Use - Fasmov Foam Cannon - Microfiber Sponge and Towels - Leaf Blower followed by a microfiber dry Congratulations on making it this far, I’m proud of you. LOL.
  23. I have a 2014 Chevy Silverado Z71 with the 5.3L engine and long story short the exhaust set up i have is i cut everything after the CATs and put a single chamber Flowmaster super 10 and dumped it off right before the axle. I am trying to find a solution to the horrible drone i experience around 1700-2000 RPMs and the "helicopter" sound I experience when the engine switches into 4 cylinder mode. I still have the factory section of the exhaust i cut off which has the flapper which I am wondering if putting the flapper back in would solve the helicopter sound as well as fix the drone? I'm mediocre when it comes to knowledge when it comes to exhaust at best so i have no idea what it would take. What would it take/what is the best solution to make my exhaust remain loud when i get on it but not be annoying as heck in the cab when i am at speed and on the freeway? Thanks for your time in advance!
  24. Seen alot of posts like this but none that quite answer my question. I have a 2018 Sierra 1500 Denali with the 6.2. I am thinking about installing an electric exhaust cut out before the muffler. (For arguments sake let's say my best friend is the warranty manager at my local dealership so I am not concerned about warranty mumbo) What I'd like to know is if I am going to run into any check engine light or any other messages popping up that she will pissed at me about it. I noticed alot of people with '14s and '15s not having issues with them but I feel like this 2018 has so many sensors and is so touchy that I'm hoping to hear from someone on here with the same year that has done it or knows of someone who has? I dont have any oxygen sensors back that far but is this engine computer smart enough to realize there is no backpressure from the muffler or something like that. I may just be being paranoid but really dont want to have to look at an idiot light over it. Wouldn't be worth it..or would it Any logical input would be very appreciated!
  25. Doug Thorley Headers

    I purchased these headers about a year ago and before I could get them installed started having issues with my 2016 Sierra and didnt want to give GM any reason to deny my powertrain claim. I have since had those issues resolved but decided to go a different route with my truck and thus these are for sale. Asking $750 obo plus the ride. Motivated seller as I would like to finish my G8. Thanks. These will fit both the 5.3 and 6.2 of the below listed vehicles. Note if you have the 6.2 you will have to expand the ball at the end of the connection pipe to fit. Thanks again. 2014-17 Silverado/Sierra2015-17 Suburban/Tahoe/Yukon/Escalade
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