Mustang 5.0 Muffler on a 420cc ATV!

Our stage 2 420cc ATV is our loudest project of all time! We don't want to have the cops called on us, so we're playing around with different exhaust systems to quiet this beast down. We end up installing mufflers from a Ford Mustang 5.0 from 2014. Somehow, the built Predator 420cc engine is still loud, but the Coyote muffler does a good job at quieting it down.
Thanks for Watching!
-----------------GO POWER SPORTS PARTS IN TODAY'S VIDEO----------------
420cc stage 2 kit:
Call for 34mm carb availability!
Go Power Sports:
Equipment we use:
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Cars and Cameras makes no representation about the sufficiency of any safety precautions and equipment used in this video.



  • With shrinking the jet size, why not fill it with solder and then drill it out?

    RichardRichard23 gün önce
  • Cut the end off the old muffler, remove the baffle, repack it and weld it back.

    joseph hooverjoseph hoover25 gün önce
  • Take a fender washer well you a little round bar 1H round bar on both side of the fender and whether to the nou pipe it don't take a big Fender washer depends how big the hole is of your tailpipe and well that Fender washer with the two rods on each side of the tailpipe and it will muffle it down and you still have power I did it on a four-wheeler Cajun land Church Point Louisiana

    Chief EstiletteChief Estilette29 gün önce
  • cool.

    RalphTheDogRalphTheDogAylar önce
  • Drilling jets isn't good, it isn't just a straight hole, there are specific tapers in the jet orifice to insure proper fuel flow. Those Mikuni carbs are very common, so it's easy to get jets (and needles, emulsion tubes, slides, etc...).

    Sean HeihnSean HeihnAylar önce
  • does that have centrigal in the rear of the bike?? you could put a big pulley on the front.

    Joshua HoffmannJoshua Hoffmann2 aylar önce
  • 670 is quieter because it has smaller cylinders. Specifically 2 335cc, this is one 420cc.

    Stephen WalkerStephen Walker2 aylar önce
  • A hunters silencer pipe would quiet that atv

    Iamdonald duckIamdonald duck2 aylar önce
  • Make the worlds first model-A with a Preditor 212 engine

    Iamdonald duckIamdonald duck2 aylar önce
  • I want that atv

    Brenden CareyBrenden Carey3 aylar önce
  • Ahh 666k subs

    Pht_ AlphaPht_ Alpha3 aylar önce
  • A drop of solder works great for closing jets as well

    Nick SlagerNick Slager3 aylar önce
  • One way to take the crack off the exhaust note, is to take the exhaust outlet, get the biggest trumpet, then flatten it to as narrow as possible, but still allowing the same amount of cross-sectional area as the exhaust pipe from the engine. It's otherwise known as a fishtail exhaust, popular on British motorcycles in the 50's and such. Give it a shot.

    Eric FredricksonEric Fredrickson3 aylar önce
  • I started to watch this channel just as you had to stop the CaC GP for the autumn last year. Great to see that poor beautifull lawn get shredded again!

    Ole KaarvaagOle Kaarvaag3 aylar önce
  • It sounds bad ass without it

    GO_CRaZy05GO_CRaZy053 aylar önce
  • Put the martini exhaust in front of that one

    Timothy DunnTimothy Dunn3 aylar önce
  • It will be fine!!

    Gord BattersbyGord Battersby3 aylar önce
  • I really hope that muffler is temporary. You guys can and have come up with much better ideas

    Mike MorganMike Morgan3 aylar önce
  • Got my it will be fine hat thanks all

    Casey PhalenCasey Phalen3 aylar önce
  • Is that Bill Keleher all cleaned up?

    MyNameIsMudMyNameIsMud3 aylar önce
  • FMF exhaust !!!!!!!!!!!!!!!!!!!!! Like it they should do it😁

    kam yeahkam yeah3 aylar önce
  • If you want quiet than put a stock motercycle exhaust that is California compliant on the quad

    junkierider _junkierider _3 aylar önce
  • I've got a 80 raptor rebuilt the carb about a year ago. Works great if you ease into it but wants to die when full throttle. Any ideas

    W ShanksW Shanks3 aylar önce
  • could you guys make a video on every veichal you have

    Adi PlayzAdi Playz3 aylar önce
  • Why don't yall go back in the woods anymore and could you send it big on the 4 wheeler and the monster truck on "Payton's pass"??

    Funner Than BeforeFunner Than Before3 aylar önce
  • They should put the 670 in it

    Jack MidkiffJack Midkiff3 aylar önce
  • she could do a whole lot better with an atv rider on her

    Mark DaywaltMark Daywalt3 aylar önce
  • If that thing had a 670cc twin stage 3 engine it be a killer

    Colton HogueColton Hogue3 aylar önce
  • I have missed some good old laps on the C&C gran prix. Keep it comming.

    Kevin MadsenKevin Madsen3 aylar önce
  • Hi im 12 years old and i love your Chanel. But i have a question? Can i pls get a motor so i can build a go kart

    Theo HöglingTheo Högling3 aylar önce
  • Might help to get something that is more of a match for that exhaust diameter. The bigger pipe makes more sense when running from a collector, but this is a single cylinder deal.

    pauljs75pauljs753 aylar önce
  • That's the same carb I have on my 125cc dirt bike and it lacks on top end power 😂🙄

    electrogamingelectrogaming3 aylar önce
  • When you guys weld do you use gas

    Richard FelixRichard Felix3 aylar önce
  • When are u gonna get the stock motor in

    chapiongossechapiongosse3 aylar önce
  • New camera?

    Damien ShanksDamien Shanks3 aylar önce
  • PLEASE HELP!!!!!! I bought a yard kart with split rims and the rear drive wheel went flat. The 4 bolts in the wheel are ran thru the sprocket Into a hub assembly or CV axle. When I buy the new wheel how do I install it if those bolts have to be messed with to get into the CV

    Chris ParsonsChris Parsons3 aylar önce
  • Do some more yerf dog videos

    dragonhead889dragonhead8893 aylar önce
  • Why don’t you guys find a junky old dirtibike like an old yz or cr and fix it; I’d think your viewers would like it!

    Jared KellerJared Keller3 aylar önce
  • I was looking through your guys videos and I didn't see anything about it but I just heard about that smog pump supercharger you could do for small engines you guys should do a video on that or if you have done a video on that let me know what video it is

    matthew basilottomatthew basilotto3 aylar önce
  • Can we see a compilation of all the GP lap times?

    00 goop00 goop3 aylar önce
  • Maybe a 2 stroke exhaust would be better?

    Elijah PriceElijah Price3 aylar önce
  • Corvette go cart

    vanhornjimvanhornjim3 aylar önce
  • Is that plastic

    Tracie LeathTracie Leath3 aylar önce
  • When are they going to work on race karts

    Julio AlvaradoJulio Alvarado3 aylar önce
  • Sounds like a mini polaris when wide open lol

    John BrownJohn Brown3 aylar önce
  • MR. KNOW IT ALL¡¡¡ Why do i get a vibe thru a video from the short guy is like he is controlling or has a problem with having last word like when he cuts the video from when the tall dwn to earth man speaks an goes straight ti his voice over¡¡ No is not like is tru that he is an do have a problem. Every idea that my mans come up with he is always like na i dono or jus throws shade at my dude if u ppl dont see it then id hate to be around u in real life lmfao. An is out of gas id make his ass push it back an once again he got another isue tha carb i wana smake u thru the phone papito coño¡¡ I knownit dont matter with tha views u have BUT STILL U LOST A VIEWER AN SUB 🤞🏼👿🇵🇷

    Chavo FigueroaChavo Figueroa3 aylar önce
  • I have an MRP performance exhaust that I had from the gy6 150 cc on my hammerhead and then I put a 420 CC predator in the hammerhead and I had to do some welding to get it to fit. The MRP exhaust you should check out maybe would work for you guys to make it quieter And still give you great performance

    Curtis JarmanCurtis Jarman3 aylar önce
  • i gotta question please help me anyone. i have an opposed twin briggs racing engine with billet rods, pistons and a cam. has the ARC billet aluminum flywheel but it makes so much compression it strips starter gears! is it safe for me to use a metal starter gear with the aluminum flywheel? someone help please

    Mississippi Mud TeamMississippi Mud Team3 aylar önce
  • I've been working on a 2 stroke mini bike with a 5hp snow blower engine the throttle cable just recently broke I am going to order one soon. It was a blast to ride before the cable broke and no brakes.

    Gavin RobinsGavin Robins3 aylar önce
  • Put the plastics back on

    MudboisMudbois3 aylar önce
  • I found another body for the monster truck $250obo

    Ringr 57Ringr 573 aylar önce
  • solder the jet up then re drill it

    wippy748swippy748s3 aylar önce
  • You should do a give a way on one of your projects

    Crazyboy GamerCrazyboy Gamer3 aylar önce
  • "quiet exhaust" meanwhile they're shouting over it at idle lol, but also if it was actually sealed it would probably be quieter than it is now

    TuxedoRoosterTuxedoRooster3 aylar önce
  • Yall need lectron on ya stuff

    guy buddyguy buddy3 aylar önce
  • what is the compression ratio on your 420?

    MrGixxer1300rMrGixxer1300r3 aylar önce
  • You guys will definitely be able to cook on the back of that thing

    when nature callzwhen nature callz3 aylar önce
  • I'm getting my old Thunder Kart back together and enjoy watching you guys. What made you go with that particular welding machine? I want to get into welding. I was stationed at Cherry Point!

    Gabriel CareyGabriel Carey3 aylar önce
  • doesnt the needle in the slide have 3 or 4 notches and a little c-clip so you can adjust it up or down in the slide to adjust to flow of fuel? almost all round slide carbs I have ever worked on had that.

    Tall Tale MediaTall Tale Media3 aylar önce
    • Basic Mikuni Keihin Slide Carb Tuning

      Tall Tale MediaTall Tale Media3 aylar önce
  • Where's that 69 Chevelle? Saw an old 2 second shot of Ike driving it. Car needs a lot of work but I could not believe how healthy the motor sounded! I couldn't find it. You guys have a lot of videos! Go carts are cool,.. but what's the deal with that car. Where is it?

    joe vjoe v3 aylar önce
  • Idk why that Harley exhaust didn't sound quieter. I ran a 2016 ultra classic stock muffler on a stock 12hp Briggs... Lot quieter than either of these setups..

    lJason BrowderlJason Browder3 aylar önce
  • The US Armys Stryker vehicle has a really quiet exhaust, like stupid quiet, reason being is that theres a long distance from the header on the engine to the muffler at the rear of the vehicle, i think you guys need to some how lengthen the distance or add more tubing before the muffler.

    tankerboysabottankerboysabot3 aylar önce
  • Predators...

    drive it break it fix itdrive it break it fix it3 aylar önce
  • Why don't you buy factory plastics to put on the atv.

    eli obrayeli obray3 aylar önce
  • Where do you get the go karts

    Nixon AldcroftNixon Aldcroft3 aylar önce
  • Why didn't you raise the clip in the needle? that would have lowered the needle into the jet and leaned out the mixture, or just get a different sized jet instead of monkeying around with the jet in the carb!?

    Frank StrockFrank Strock3 aylar önce

    Dan BonacumDan Bonacum3 aylar önce
  • Does any one of you guys know a person that sell a vintage go kart chassis

    Hossain SaboorzadehHossain Saboorzadeh3 aylar önce
  • You should do a 670 swap on the atv

    Jonathon CollinsJonathon Collins3 aylar önce
  • I could see yall being an American mighty car mods

    Michael WilkersonMichael Wilkerson3 aylar önce
Mustang 5.0 Muffler on a 420cc ATV!