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We Raced Our Sleeper Turbo 03' Yukon XL Against 1320 Kyle's 6.2L Denali! (Then He "Test Drove" It)

33:13
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Video by Stapleton42

Stapleton42

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This project details the process of modifying a GMC Yukon XL's exhaust system by removing a factory cutout plate to improve performance on a drag strip. The video documents multiple drag runs, comparing performance with the exhaust cutout closed versus open, and also features tests with different drivers and driving modes (4WD vs. 2WD) to assess the impact of the modification.

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I need one of these it's a rolling drag strip party I can't see [Music] anything oh Kyle's talking on the walkie-talkie he is [Music] yeah oh my God Kyle doing a burnout you're in trouble man that Yukon gets down it just looks like a stock Yukon that you like stuck into the car show inste a tent up next to you presentent wrench to get these Wing nuts extra tight why looks stock that's the point of a sleeper buddy there's some gold in this comment section well now we got our spot sort of right next to 1320 oh no he threw up on my hat and my phone case I have to unload and set up easy up stuff like right here and then pull Uncle Rob right there then we'll have access to the truck while we're doing stuff let's get this thing unloaded like ladies over here for now okay I'm going to do a time lapse of this [Music] for [Music] all set up [Music] now I don't know I think it looks pretty good for our first attempt what do you guys think did we do a good job this is just a random popup thing from Academy and I was like you know I wonder if my stickers will stick to it and they like sort of do so boom I just put some tape over the oh my God it's Matt what's up are we neighbors yeah sweet yeah I chose to park here just cuz I knew you were go awesome you just posted a picture of Uncle Rob on the 1320 page I didn't there's a lot of mixed stuff every yeah everybody either like recognizes it or they're saying it's heavy there's a comment that I'm looking at right now that says why I'm going to respond to that and tell them why looks stock that's the point of a sleeper buddy there's some gold in this comment section it don't make 450 horsepower is the most common thing I'm seeing you know it don't make yeah well I got nothing to say right now it actually does but it won't for very long yeah I love that thing man it just looks like a stock Eon that you like stuck into the car show and set a 10 up next to you someone said driving here I put a picture on my Instagram story and they're like you look like you're coming back from a Craigslist score not going to a race scored this on Facebook Marketplace today yeah 500 bucks hey hey that's worth more than $500 it's a good deal if you got for 500 bucks I can't wait to race it I can't either people don't they don't get that like 450 wheel in that thing moves like how slow they are normally man I was making 450 horsepower when it came out that would have been like the TRX of its day literally somebody said they were winter tires like well they could be winter tires if you want it drove through the winter with those tires that makes some winter tires it does it does it is now getting later in the afternoon Drive racing is about to start I got to go go get Tech inspected make sure Uncle Rob passes Tech it has been a long day I just want [Music] great testing tune about to get called to come up soone pull up and do it kind of got a little bit of a dilemma or a sucky part here is Logan can't come to the line with me because she has to watch all of our stuff so she's just going to walk up in the fence and film so we're pulling up now I got it in four high it's really crunchy doesn't really like to turn but you know that's okay it'll be fine uh I'm really not I'm thinking somewhere in the 8sec range I'd like to see an eight cuz it went I think a mid n in yellow belly with the half blown up transmission so we will see good3 and the bird finally going to get there 93 at 77 mph I think we can launch harder that was pretty strong see what we ran here left or right right there you go thank you what' we do 9913 at [Music] 77.77% 4 l60 to the 4 l80 kind of really let this thing lag Racers as you pull up interesting nonetheless exed out there I think this is a great starting point kind of sounded stuffed up with the stock exhaust yeah yeah I think that's part of it too it uh it's just trying to just blow through you it's trying we couldn't get it out I got Wing nuts on the cutout maybe tomorrow I'll take them off yeah that's a good point I totally forgot that it has the exhaust hook back up now I would be willing to bet that's probably killing like 40 horsepower cuz it it felt constricted so yeah I think next time we'll pop that cut out open and see if it makes a difference cuz it it felt like it significantly slowed down the spooling of the turbo like it wasn't just the gear ratio and it makes a lot more sense now I don't know if you can tell that it looked like it left really really slow yeah it did it's okay you did your job oh day two track check your mics uh we're getting ready for Tes and tune again and I'm going to pull the cutout off and see how much faster if it goes faster for science may not be a Dyno but we can see real world track numbers as to how much the factory exhaust chokes this thing down so let's get it pulled off among the ice cream truck sounds over there I will say The Food Truck crescent wrench to get these Wing nuts extra tight as I didn't want it to fall off and lose the cover plate on the road somewhere oh we got condensation [Music] nice good to [Music] go I didn't even see he was like BL the whole time it was funny I didn't even see it well the cutouts off I like did that to like watch him just funny the uh the turbo sounds a lot more free you can even just tell by the way it revs it just revs better with it open still feel like it's a little bit slower than it was with the downpipe just dumped at the firewall but better than not having it at all so the real solution is turn up the boost for a future day race week probably maybe I don't know we're just going to see what it does today but I got to pull up there there and get in line they're pulling up now the cutout is off and I'm going to I'm going to double stage or I'm going to go into the second bulb put it neutral rev the crap out of it press the brakes really hard and boost this thing really hard not like last time I didn't do it that hard last time and we also got the cutout off so I'm thinking we should be able to do a good 60t here it does not like to turn and four-wheel drive though the rear end is also not super thrilled because it needs more friction modifier in it probably different viscosity fluid but we're just going to let it ride hear that but going well that felt way better [Music] that was good we're going to run again we're racing some people today yeah I think it trapped 80 that time maybe 81 I'm not exactly sure but I saw the speedometer was right at 80 at the end and it was significantly uh quicker launch gotb out there hell yeah yeah 80.5 but still a 2o 60 foot hm maybe I can load it up more that or the uh the gear ratio difference from the 4l60 really made that much of a difference even though it was half blown up which is very possible that and the rest of the exhaust which is like another 3T of pipe it's not a ton but may make some of a difference for 10 lbs of boost can't beat it this thing's a riot for 10 lb of boost we're racing Kyle's Yukon run you oh oh sweet we got a passenger it's okay we're not fast enough to need one of these D so that's what that looks like down there well the thing is when someone tried to steal my Duramax they stole this and took all my change so the one from Uncle Rob is now in my Duramax go yeah I know I need to go get a new one this takes me back to where my dad had one of these holy cows it's like the exact same thing just more power more power more power I used to sit back there when I was a little kid kick the seat I I tie a when we go on long drives I would tie a hockey jersey from this thingy to the back of the headrest and then shove a pillow in it and I'd sleep like that I go to Grandma's house in Michigan DN so many memories yeah and now we're racing it it's funny so your uncle ordered this like way back in the day right my dad did your dad did yeah my dad was the original owner he ordered it new uh he got it in July 2003 I got a picture of me sitting in his old 95 Suburban wearing a DNH heart jacket with this one brand new in the background go down suck it Kyle on that light boy I'm doing my best oh he's going around the water uhoh oh he thinks he's going to spin okay no chances we'll be taken man who backed into something uh I don't want to talk about it oh my God Kyle doing a burnout you're in trouble man hey yukong gets down is that thing two wheel drive no but he had he probably has in a two wheel okay [Music] [Applause] red we red lit but we GA anyway so I still gave him hazards Bo to the Ukon [Music] oh hit him with the hazards oh Kyle's talking on the walkie-talkie he is yeah tell him I'll give tell him I'll give him the hit O Okay uh Mitchell said he'll give you the hit kop said all right all right let's do it we're just hot lapping this thing woo he is Toasty in here hey they only said no AC about 9,000 times over intercom so I'm following the rules did you beat him do it I mean I read so not really technically though what we run w we went uh 8.94 at 79 he only trapped 71 so he's he's screwed uh that was an 891 Kyle we both went a 2160 foot though so if I give him the hit we're going to 60 foot the same and hopefully run him down by the end fantastic numbers you won't see numbers like that anywhere else unless you take your m car on the track or your dad's you car yeah Kyle's going to switch into for high here did he spin last time no didn't really sound like I well if he didn't spin that's going to make him slower so [Music] it and he's chasing him first that there is a race worth racing yes sir when you can watch the other guy and like have time to wave at him going down the Eighth Mile you know you're having fun yeah we'll see if he wants to run it back to two whe now we goes this is the third hot LP for this thing that was another 890 my first one was an 870 so we're heat soaking this thing and still whooping him with boosted boy Kyle's OG eBay intercooler that's probably been on I don't know how many cars he had oh probably a ton how many Motors he's blown up through it when he gave it to me I poured oil out of it so oh my God just haunted stuff yeah yeah we still went 78.2 and he went 72 damn 21 60 fot again 60t was the same but we're killing him in the 330 they like when I pulled up the tech in this thing the guy looked at me like I was going to ask him a question or something he and then I pulled out my slip and he's like and then he's like can you pop the hood and I did he's like oh it's got a turbo he just thought I was like what are you doing guy you should been like yeah Mom's going to be pissed when she finds out that I put a turbo on her car I switch back to two wheel and slow me down I can put it in two wheel too see if I spin I don't know if it would you give me hit again we can try that because I will also pick up power from going to two wheel drive so oh dang it could be a uh Gamble worth taking TI right now try that have you seen how he switches it back from four wheeel to two wheel uhuh oh here we go dang this thing does a good burnout yeah it does look at all that smoke [Music] Mitchell looking to win the burnout Contest out there past starting line had to work his way around the with the little sideways Johnny you think he's scared oh he's trembling right now uhoh terrified uhoh oh did we dribble uhoh it's condensation I forgot the front one was like not blowing but it was still on so it was Dripping this is uh way more intense watching this go down from inside the vehicle yeah it's very nerve-wracking I think we're cool oh no he's going to check underneath that good good man though yes he's not taking any chances all right let's see this tree a damn it I a hit we had to ped it [Applause] there and he's got him I totally forgot I was supposed to give him the hit oops you timed that tree super nice though I'm just 100% all the time you know you can't turn me down it's hard ah you suck again I forgot to give you the hit forgot this thing sounds so good good though running next to it cuz you can't all you can hear is your car cuz this thing's dead silent the whole way you want to drive it of course I want to drive it all right we can do that hell yeah make a guess pass I like that oh oh it says transmission hot after the after the fourth hot lap it says transmission hot we got some behind the scenes going on here Kyle is going to drive Uncle Rob take down your personal best is it uh eight 870 I think 87 something I think it's in the the thing there yeah let me look at your book holy crap oh no don't lose the SLE oh Jee it's on the ground now oh N I think it might be 8 94 the split one that was my best one was the first pass of the day before I got it to be a million degrees one 878 yeah that's got to be it that's a that's an old yellow belly one 108 yellow belly I'm jealous I've never raced yell belly I need one of these it's like it's the weirdest thing that thing would break so fast we don't have a Mitchell to work on it for us this is only 10 lb like you could leave it like this and be just fine you can still off a little bit yeah people keep telling me Oh you should lower you should like no it didn't come from the factory like that we're not doing it handle's pretty good going to do a dig here see if it spins in two wheel or do do like rolling bur sorry about your tires I don't care never did I think that I would be going around this backwards backwards oh my God we are going backwards too yeah we're not going to hit the P down the track with no yeah I love the unnecessary turbo noise and blowoff B sounds this thing makes rer everybody's looking like excuse me coming through like look at this stock looking Ukon C by the way um it doesn't have one but if it says it's hot then it's really really hot where does it say oh is that that it it would where it says service four-wheel drive it would say transmission hot yeah this is awesome this is like the most epic like ultimate racer sounds you can make HS it's a TI close enough is there people people watch it run like oh it's low it's low like you have to drive you don't understand you will go half as fast and have twice as much fun as if you did the same stuff to a car got roll our windows up here it's in two wheel drive but it won't spin radi on here they are um radial tires but they are not drag radials we're going the grand they're uh winter tires yeah everybody on Instagram was like I like the winter tires the brake booster just go brake boost it if it spins you know just pedal it ride it out your heated seats on by the way oh that's why get a little you just poke the buttons on the side of the door there yeah never had that problem before he was probably getting squirly the swamp ass is real all right we're going four deep down the drag strip here five 920 not bad not bad that's fter than with four passengers that's faster than my stock those 920 with four people in it it's a rolling drag strip party love I love this how much do you think you can tow with it um right now not much cuz the hitch is about rusted in half but if we changed it I think it would tow just as good as you feel confident trying to stop we're going to take her down the road her off a bit this thing feels really well together I'm glad you think that I mean the awkward cence I'm glad you feel all I can think of is Flash through all of the things I'm like you know what screw it screw it screw it through my head building this whole thing and like yeah I'll take it I wish I had my try with me new high score would to set records you're not going to do that in the E this thing is so freaking solid of curiosity uh is your gas gaug that does not work we have gas I'm not worried about it because I can always get i'll car you you're not kidding it's not the fastest like it's so much freaking fun oh yeah this the sounds about to do we should probably r the windows uh yeah do you want to inside or outside I want to be outside to film that just stand kind of far away well no crap I'm not trying to get hit by rocks all I like the logic thanks good thing I got company insurance I used to do donuts and gravel with my dad's 08 Suburban cuz we couldn't do donuts anywhere else y That's way it do it this is a real throwback right here workers comp this is good okay this is safe distance here anything kachow did I do it right that look this is filthy now thank you hell yeah yeah hell yeah that sounded cool what left what was left in my voice hey the TR still isn't hot so that's good yeah that's a wind this farmer going to be like damn kids yeah they're on my rocks everywhere this thing flawlessly did a Don oh yeah look at the marks back too hug it was just floating like a trophy truck oh my God here it looks like an explosion Paula has no idea who's doing though she you got to be ready to film when we she's going to be so pissed is she I I can't well until she sees me to turn you guys Paul yeah Paul's like going to kick us out thanks Kyle almost getting boed just smileing wave smileing wave service four-wheel drive important no it always says that tell me if anything pops up about I just really like that she kept talking about them you think they're doing Tes in tune or no fan clearly has priorities we don't need to dump a bunch of dust on the dragon you can't not make turbo noises in this you can't have a bad time driving this [Music] you need one of these why does that guy have so did you have to build the um no I just put an HD2 kit in it he drove a couple holes in the valve body kind of she's looking his like fre it is an SUV so I got to see how it oh Jes J accidental drift oh there Ken Block oh yeah kind of quiet the turbo down yeah all right now slide this I'm not going to do that need to make too bad of an example you already did yeah you're right did they make angle kits for these things that was a lot more they make angle kits for these oh say do they if they don't then I might have to you should then you might have to lower it though I think pass on the track I didn't break it too much it's still in one piece where's the backup there's there's a license plate frame on there that has a camera on it that my dad put there because he had like a primitive head unit with a backup camera on there my uncle ground I I'm sure it's fine some old RV flat Towing stuff I'm sure and cuz all that's still there like the toe bars when I got this thing from my uncle I took it back to my dad's house he's like oh I still have the toe bars from it w that's really long this is what he used to pull it behind the family motor home yeah it goes into where the tow hook goes nice yeah and the The Brak pooid that with like the Breakaway breake thing there's a bracket on the floor down there and there's a Mac there's a Mac valve and stuff under the hood got your tuna salad tuna salad I don't know well thanks for letting me take it for a rip anytime I'm impressed that it made it through all that it was fun it's the beauty of it it's not running too hot either that's if you are new here welcome to the channel uh if you've made it this far look down there and hit that subscribe button because if you if you like this kind of stuff we're going to be doing a lot more of it a lot more with Uncle Rob the next Suburban build coming up the Escalade all that you're in the right place and I feel like if you watched the whole 30 minute video anyway and you never been here before you should probably subscribe because treat yourself also I wanted to show you that those Uncle Rob shirts that you can see in the background of the video we got them right here steton autoworks.com got these shirts to the one I was wearing it looks like dor and Hart's 1988 through 91 is pit crew shirt um this is the back that's the back of the Uncle Rob's shirt the front just has uh I'm terrible at this I'm sorry guys bad product presentation I'm not a pro just has a logo on there we're also preparing for Rocky Mountain race week which is happening right now Rocky Mountain sweat week…

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