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Found 283 results

  1. After being down nearly 6 months the Denali is almost finished. The shop based out of Hudson, NH “Granite State Dyno and Tune” has been incredible. Super professional with absolutely top notch craftsmanship. Here is the build. 2014 Sierra Denali 6.2L Block: GM 6.2L. Forged crankshaft Forged rods Diamond 10:7:1 Pistons. Precision Race Components ported Cylinder Heads w/ valve job PAC spring/ Valve Kit. Comp Cams rocker arms/trunion Texas Speed & Performance Stage 1 Camshaft +30% fuel lobe TSP AFM delete kit Lingenfelter ported 95mm throttle body Ported L86 intake manifold. All ARP bolts or studs. Fuel: GM ZR1 high volume fuel injectors GM ZR1 fuel pump Armageddon 465 LPH in tank fuel pump Snow Performance Stage 3 Meth Kit with controller and braided lines. Turbo: Borg Warner S480 T6 Turbo 1.32 AR billet 110/96mm. Turbo smart 50mm BOV Turbo Smart 60mm waste gate Pro Boost controller fully wrapped exhaust Cooling/Oil separators Mishimoto fully aluminum Radiator Mishimoto R-Line Intercooler 31x 12x 4” Mishimoto HD Trans Cooler 2X Mishimoto Black Aluminum catch cans. Transmission: Circle D pro 3 torque converter 2700 stall. I think that sums it up... I will post tuning videos and some driving clips as soon as they’re available. Should have it in the next couple weeks. I’m excite!!
  2. Hey Folks, I've been searching all over the NET for info on this situation. I have a 2014 Sierra 1500 Denali 4x4 equipped with a 6.2L and the 6L80e. I'm looking to swap in the 8l90 and would like to know what it will take. The engine set up is capable of producing over 1100 hp however, I'm restricted due to the transmission. Any assistance would be appreciated.
  3. I have a 2019 GMC Denali Ultimate. I believe I have the most up to date software in 803. I was at my Chevy dealership with a friend and he was driving a High Country and I noticed the Heads up Display showed audio information and other information when changing channels, etc. My Denali does not do that and I wondered if anyone else knew or saw that the same? Not to say this bad, but would the Silverado have additional features the Sierra would not? I can't believe the Denali would not have "all" the possible features considering one is paying more for it, but from what I have seen, this information is not shown on the GMC's. I have brought this item up previous as those features are shown on GMC's website when advertising features of the Sierra and mentioned it to my dealer but they say there is no way they can find out from General Motors. Can anyone confirm if their Sierra/Silverado shows audio information on their Heads Up Display? Thank you in advance.
  4. Anyone have experience fitting 22” wheels and tires on a stock canyon Denali? Not sure if I need to lift it at all first. Thanks
  5. Hi everyone, New to the forum but have been doing all types of research so i don't mess this up. I have a 2017 Denaili 1500 with the ultimate package 22" wheels. Of course i already dented and have had my rims fixed because the weak sidewall size of the 285/45 tires and i love the Grappler 2 look when you put 285/55 tires on this truck. I noticed some companies offer Magnaride options and i know i need to find out what control arms i have but aren't all 2017 models the stamped steel arms? At what height do i need to worry about lowering the diff? I see options like Supreme Suspensions have axle alignment shims but don't mention magnaride in the offerings. If anyone could give me some guidance, i would like to do a 3" or 3.5" front and whatever in the back to get it looking proper. I only think i want to do 1" or 1.5" in the back because i read that if you do anymore more, you might top out the shock over bumps and what not. Thank you,
  6. I just recently purchased a 2017 GMC Yukon XL Denali, with the 6.2L engine. I noticed the stock low beams are not that bright, as well as that sometimes they produce a white output and others become yellow. I had both of my headlights with assembly’s replaced under warranty and still is occurring. Has anyone ever experienced this issue, or been able to noticeably see their headlights change from white to yellow?
  7. TLDR version - 2015 Yukon Denali with 20inch wheels and 86k miles. Great ride initially, font struts replaced 3 times for leaking since 50k and ride quality horrible. First post after years of learning from the great people on this forum. Have an early 2015 Yukon Denali which had a lot of the initial growing pains for a new model but nothing major. Fast forward to just past 50k miles and ride becomes bumpy to almost violent at times. Dealer replaced front struts which had begun leaking. Ride improved a little but things like speed bumps would throw everyone side to side as well as parking garages with small imperfections that would bounce you out of your seat at 10mph and lower. Most of my miles are highway and beltway at speeds between 65 and 75. This is where the car feels every bump and seems to react side to side rather than up and down. fast forward to 70k+ and ride has gotten worse. Took to different dealer who identifies front struts leaking again and replaces them under extended warranty. Small improvement at highway speeds, but forget about speed bumps or neighborhood roads or driveways with small imperfections. just hit 86k and have now had the struts fail and replaced for 3rd time since the 50k mark. Ride quality has not Improved and actually believe the side to side motion is worse after hitting a imperfection or small bump. Extended warranty expires at 94k at which time I cannot afford to keep replacing $1800 worth of struts every 10-15k. Reaching out for any suggestions or experiences that might help identify what happened to the ride quality. The service department is at a loss.
  8. Recently I noticed my navigation not working in my 2016 Sierra Denali. The GPS has a red X over it. I have done some research and most people are saying the green onstar light on the rearview mirror turned red when they had an issue. Mine is still lit green but no GPS signal. Can anyone point me in the right direction for a fix?
  9. Is anyone else having an issue where the automatic start-stop feature on the vehicle stopped working? I just got the truck about 3 weeks ago (Brand New) and this is the only feature giving me an issue. It worked at first, but after driving it a week, it has not worked since. The only modification I have done on the truck is change out the License Plate light bulbs from halogen to LED. I'm at the dealership right now and they can't figure it out, so they are trying to contact GM regarding this issue. No error codes showing up according to them.
  10. I have a 2019 GMC Denali Ultimate. I believe I have the most up to date software in 803. I was at my Chevy dealership with a friend and he was driving a High Country and I noticed the Heads up Display showed audio information and other information when changing channels, etc. My Denali does not do that and I wondered if anyone else knew or saw that the same? Not to say this bad, but would the Silverado have additional features the Sierra would not? I can't believe the Denali would not have "all" the possible features considering one is paying more for it, but from what I have seen, this information is not shown on the GMC's. I have brought this item up previous as those features are shown on GMC's website when advertising features of the Sierra and mentioned it to my dealer but they say there is no way they can find out from General Motors. Can anyone confirm if their Sierra/Silverado shows audio information on their Heads Up Display? Thank you in advance.
  11. I have a 2019 GMC Denali Ultimate. I believe I have the most up to date software in 803. I was at my Chevy dealership with a friend and he was driving a High Country and I noticed the Heads up Display showed audio information and other information when changing channels, etc. My Denali does not do that and I wondered if anyone else knew or saw that the same? Not to say this bad, but would the Silverado have additional features the Sierra would not? I can't believe the Denali would not have "all" the possible features considering one is paying more for it, but from what I have seen, this information is not shown on the GMC's. I have brought this item up previous as those features are shown on GMC's website when advertising features of the Sierra and mentioned it to my dealer but they say there is no way they can find out from General Motors. Can anyone confirm if their Sierra/Silverado shows audio information on their Heads Up Display? Thank you in advance.
  12. Hey guys, just wondering if anyone on here has swapped clusters in Canada. Thinking about doing this and have read lots of threads about it on this Forum, however couldn't find anything really about the guys who have done it in Canada ( where to purchase other than dealer, where they had them programmed, clusters in KM/H etc etc ). The denali style cluster would be going into a 2017 GMC Sierra with the blue backlighting. Thanks!
  13. Good Afternoon fellow 6.2L enthusiasts. I apologize if this sounds like a commercial or a rant. I just like to share what I've experienced and discovered. So, I don't know about you, but I've been searching for a way to cram more air into my L86 that won't break the bank. I've done hours upon hours looking for the perfect bolt on's or practices that will help the block breath deeper. I've learned that swapping intake manifolds are not worth it however, porting makes it one bad ass manifold. (which i've done) I threw on an AFE CAI and that really helped get the air moving. (momentum GT pro 5R) Headers and a bigger full exhaust helps get the flow rolling. (I'm rocking TSP 1 7/8 Headers with a 3.5" full exhaust (catted with Cal Cats) and a Flowmaster Pro series Muffler) Cylinder Heads and a Cam shaft will transform your truck. (going with TSP Heads and a Trick Performance Cam package) And a basic tune wakes these bad boys up. (local dyno-tuner) That being said after the above you're looking anywhere between 430-530 HP N/A. Obviously the Cam specs are going to swing that number. Now, The one thing that I have NOT been able to find is a Larger Throttle body that will fit the L86 Stock Manifold. So I did what most have done and ported that sucker out. The only issue is it will never be larger than 87mm. Until this came along. https://www.bbkperformance.com/92mm-throttle-body-14-18-corvette-camaro-lt1.html FYI slight modification is required to the stock Manifold. You need to shave the base of the Vacuum port as well as the MAP sensor base for the frame to fit. Once that is done you're rocking. I was able to Port match the TB Bore to the manifold inlet and smooth out the transition. Honestly I can immediately feel the difference. When I get a little bandwidth I will throw on some videos of Cold/warm starts, take offs etc. If you have any questions feel free to reach out!
  14. I replaced these wheels with aftermarket at the 2,000 mile mark. They are like new, as you can see in the pictures. I'm selling them all together (four Denali wheels, the spare, and five Goodyear Wranglers with full tread life). The Wranglers are 265/70R18. The 8x180 lug pattern is for the HDs, but they can be adapted to different lug patterns if you're trying to update an older model truck. They're all beautiful with no curb scuffs or damage of any kind. I'm asking $1800 for all, but I'm somewhat flexible on that if you make a solid offer early. You can come pick them up, or I'm willing to ship them if you're willing to pay the shipping. PM me if interested or post publicly if you have any questions that could benefit the group.
  15. I have a 2015 Yukon Denali, it is lifted with 35’s, the lift has about 1500 miles on it now, I have had no issues up until recent. The issue is I’m getting a pretty loud metal on metal clacking or tapping noise from some where in the front diff or transmission. It is most predominate from speeds 30mph down to about 10mph. The noise will start when I let off the gas while driving to coast or slow down, it will do it intermittently at higher speeds but not near as much but it is the same issue for sure. It seems like it starts after I let off the gas and the rpms drop down to around 1200 or less in a coast. The noise will start off not as loud and progressively get louder if I coast without touching the gas. As soon as i touch the gas the noise will go away, it does not do this in manual mode only in automatic. I have had the lift looked over multiple times and now I don’t think it has anything to do with it other than the additional Strain may have caused and already underlying problem to become more profound. Any help on this matter would be greatly appreciated!
  16. Love my 2019 Denali but couldn't believe my eyes when i came out this morning and saw water on the back passenger side seat. 6 month old 65K truck and it leaks!!! Did a quick search and found others with the exact same problem and the exact same location. Will be calling service center in the morning. Here's another one I found. I took videos and pics if anyone is concerned what to watch for. My son is allergic to mold for me this problem is larger than most. Attached a pic of the headliner, can see how soaked it gets.
  17. Hello everyone! Newbie here…was hoping to get any and all advice before I make a big purchase. I currently have a 2007 GMC Yukon Denali with about 180,000 miles on it. My job as a Medical Device Rep requires me to drive to make money so I think it’s nearing time to put the ol 2007 out to pasture. I love the Denali, so I’m considering getting a 2015 – 2017 model but want to know the issues they have presented? I know the 2015 was the 1st year of the new body style and that can sometimes comes with quirks. Any help is appreciated. Thanks.
  18. I bought the 3 piece Underbody Shield (Part No. 23176882) a few weeks ago and had all 3 pieces powder-coated a matte red color that would match the red in the GMC emblem.. Fast forward to trying to install them last week and 2 of the 3 fit no problem, however the 3rd (which is the largest & most prominent one visually) did not appear to fit. The back bolt locations line up perfectly where it meets the other plate, however the front piece looks like it isn't long enough or shaped/angled correctly to reach what appeared to be the obvious locations for the provided threaded bolts. This Part No. as a standalone is 23135960 (GM OEM Engine Skid Plate). My question is this: Does this item actually not fit? I understand the Denali trim level has a different lower bumper due to the LED fogs, but did GM seriously over-engineer this to the point that the internals/bolt patterns & cross members don't match up for these?!? Hoping someone can provide me some input of confirm I'm just being an idiot & that there is a way to make this fit, because I really want to get this installed or find the proper replacement ASAP..
  19. $1200 Just took these off to get the black edition 22s. Tires have 80% tread left, they are continental crosscontact lx20 275/55r20 Wheels are OEM chrome 20 inch denali wheels. No blemishes or curb rash, they are perfect. TPMS not included. Located in South Florida but am willing to ship at buyers expense.
  20. I just bought an '18 2WD 1500 Denali. I'm not liking the way it sits so I am considering either a 2.25" leveling kit on the front or a 4" lift. For those with a lift, did it make the ride substantially rougher? Any pics or recommendations are welcome.
  21. Has anyone had a rear compressor issue with a new Yukon XL Denali? My wife and I bought the vehicle at the beginning of October 2018 and within a month the rear compressor began running excessively. We took it into the dealership with bought it from and the service rep heard the noise but was unable to reproduce it later in the day with the technician so they sent us away with the vehicle. The noise became more and more regular so we took it to a dealership near our house and they heard it and acknowledged the problem, this lead them to replacing the rear compressor. The change of the rear compressor didn't do the trick and the excessive running persisted, this is where the frustration really set in. The service technicians were going to run diagnostics and service the vehicle after we brought it in MLK Day. The service department manager interrupted the process and essentially tried to bully my wife into accepting the fact that this is normal behavior for a GMC Denali line vehicle. She left the dealership in tears. I called the service manager in disagreement with 1) his treatment of my wife and 2) disputing the fact this is normal. His response was the discharge the video with a bogus report emphasize the vehicle was in intended working condition. Now the Denali is sitting at another dealership while they try to replicate the issue. It occurs 30-40% of the trips we take in the vehicle and the rear compressor will run anywhere from a few seconds to 20 minutes. Has anyone else had this issue and found a resolution? I'm to the point I'm almost willing to just sell the vehicle back for a loss to be rid of it.
  22. Hello, i need some help with my 2016 Yukon Denali... so here is what’s going on and what I know... I took it in to the dealer 2 weeks ago to have the Magna Ride shocks replaced in the front.. I asked them if the rear air rides were fine and they told me they were just fine, I Imediately noticed a better ride when the front shocks replaced but started noticing a very loud sound every time I would go over any type of bump. So I called them back and ask them if they were sure that the rears were fine and they assured me they were. After some personal investigating I noticed that the driver side rear is very soft and bouncy and and the passenger side rear is extremely stiff. I did test the air compressor and seemingly working OK. Does anybody know why one shock would be very stiff and the other shock would be soft? Additionally I took it to a local suspension shop and they also told me that they were fine. I find it very hard to believe that one shock is stiff and one shock is soft. I noticed on the stiff shock that it looks like there is a little bit of dust buildup on it indicating a possible leak of fluid. So I did another little test on my own and I took the truck over some speed bumps and the driver side rear when I went over the speedbump glided right over it and made no road noise I can’t say the same for the passenger side rear when I went over the speedbump it made very loud noise and it was extremely stiff .
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