This Illegal Mod Will Add 200 Horsepower to Your Car

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  • Published: 23 October 2019
  • This Illegal Mod Will Add 200 Horsepower to Your Car, DIY life hacks and car repair with Scotty Kilmer. Banned car modifications. Muffler delete. Car life hacks. How to make car run better. Illegal car modifications. How to remove muffler to make car run better. Why it's illegal to delete the muffler and straight pipe your car. How mufflers work. Car Advice. DIY car repair with Scotty Kilmer, an auto mechanic for the last 52 years.

    ⬇️Scotty’s Top DIY Tools:
    1. Bluetooth Scan Tool: amzn.to/2nfvmaD
    2. Mid-Grade Scan Tool: amzn.to/33dKI0k
    3. My Fancy (Originally $5,000) Professional Scan Tool: amzn.to/31khBXC
    4. Cheap Scan Tool: amzn.to/2D8Tvae
    5. Basic Mechanic Tool Set: amzn.to/2tEr6Ce
    6. Professional Socket Set: amzn.to/2Bzmccg
    7. Ratcheting Wrench Set: amzn.to/2BQjj8A
    8. No Charging Required Car Jump Starter: amzn.to/2CthnUU
    9. Battery Pack Car Jump Starter: amzn.to/2nrc6qR

    ⬇️ Things used in this video:
    1. Common Sense
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    3. Camera Microphone: amzn.to/2Evn167
    4. Camera Tripod: amzn.to/2Jwog8S
    5. My computer for editing / uploading: amzn.to/2uUZ3lo

    🛠Check out the tools I use and highly recommend ► goo.gl/rwYt2y

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    This is the people's automotive channel! The most honest and funniest car channel on YouTube. Never any sponsored content, just the truth about everything! Learn how to fix your car and how it works. Get a chance to show off your own car on Sundays. Or show off your own car mod on Wednesdays. Tool giveaways every Monday to help you with your own car projects. We have a new video every day! I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.

    ►Here's our weekly video schedule:
    Monday: Tool giveaway
    Tuesday: Auto repair video
    Wednesday: Viewers car mod show off
    Thursday: Viewer Car Question Video AND Live Car Q&A
    Friday: Auto repair video
    Saturday: Second Live Car Q&A
    Sunday: Viewers car show off

    ►Second Daily Upload Every Afternoon of Live Car Q&A videos as well!

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Comments • 1 448

  • Scotty Kilmer
    Scotty Kilmer   4 weeks back

    6 Worst SUVs Only Stupid People Buy: https://youtu.be/-skXw0I05Jg

    ⬇️Scotty’s Top DIY Tools:
    1. Bluetooth Scan Tool: http://amzn.to/2nfvmaD
    2. Mid-Grade Scan Tool: https://amzn.to/33dKI0k
    3. My Fancy (Originally $5,000) Professional Scan Tool: https://amzn.to/31khBXC
    4. Cheap Scan Tool: https://amzn.to/2D8Tvae
    5. Basic Mechanic Tool Set: https://amzn.to/2tEr6Ce
    6. Professional Socket Set: http://amzn.to/2Bzmccg
    7. Ratcheting Wrench Set: https://amzn.to/2BQjj8A
    8. No Charging Required Car Jump Starter: https://amzn.to/2CthnUU
    9. Battery Pack Car Jump Starter: http://amzn.to/2nrc6qR

    ⬇️ Things used in this video:
    1. Common Sense
    2. 4k Camera: https://amzn.to/2HkjavH
    3. Camera Microphone: https://amzn.to/2Evn167
    4. Camera Tripod: https://amzn.to/2Jwog8S
    5. My computer for editing / uploading: https://amzn.to/2uUZ3lo

    🛠Check out the tools I use and highly recommend ► https://goo.gl/rwYt2y

    🔥Scotty Shirts and Merch ► https://goo.gl/pTAeca

    Subscribe and hit the notification bell! ► https://goo.gl/CFismN

    Scotty on Social:
    Facebook ► https://www.facebook.com/scottymechanic/
    Instagram ► https://www.instagram.com/scotty_the_mechanic/
    Twitter ► https://twitter.com/Scottymechanic?lang=en

    • Michael Pearce
      Michael Pearce  2 weeks back

      The muffler people still claim that you do need a muffler for back pressure to keep your exhaust valves from burning. It didn't seem to make sense to me but I don't know a lot about engines but do work on my 72 Chevy El Camino which I purchased February 15th 1975 and 94 GMC.

    • Ryan Dronsfield
      Ryan Dronsfield  3 weeks back

      Scotty back fire on performace cars could be anti lag or 2 step lanch control

    • big daddy's house
      big daddy's house  3 weeks back

      Is it illegal if I just remove the muffler bearings? 😉

    • Bv791510
      Bv791510  4 weeks back

      Hey Scotty, my mechanic says my 2003 GMC Sierra 1500 5.3 L V8 with 125,000 miles will need a new or rebuilt transmission soon. Is it worth it to replace or rebuild the transmission?

    • Abdelkader Labidi
      Abdelkader Labidi  4 weeks back

      Hi Scotty,
      I have an Infiniti g25 2014,it has 40000 KM,please I want to check the transmission fluid level but I can’t locate the dipstick,and mayo know how often I need to change it’s oil?!

  • Flashy Paws
    Flashy Paws  38 minutes back

    this worked awesome. my geo tracker went from 80 hp to 250 hp when i took the muffler off.

    • frank hargreaves
      frank hargreaves  2 hours back

      First, steal a car.

      • Joseph Marcum
        Joseph Marcum  19 hours back

        3:45. Slow down and breathe Scotty

        • Bram Moerman
          Bram Moerman  22 hours back

          Cessna’s have ALWays! at least since 1966, mufflers. ..

          • Jeremy Ellis
            Jeremy Ellis  23 hours back

            Have you heard of anti-lag???

            • Merrill Quintrell
              Merrill Quintrell  1 days back

              Hi Scotty,
              Something didn’t sound right when you referred to the Saab Sonnet as a V4 two stoke. Yes, the early Sonnets has two strokes, but the later V4 model you referred to used a V4 four stoke engine from the Ford Taunus. Making this point is pretty irrelevant however as I think Saab only sold a handful in the US. I personally haven’t seen one of these Saabs on the road in the last 20 years.

              • Herbert Humphrey
                Herbert Humphrey  1 days back

                Hay Scotty .. can I put NOZ to a stock 4.3 v6 ? Say I hook it up to be injected above my tbi injectors. I would start small doses lol also how would I tell what’s to much BEFORE I send a rod thru the hood .. love the videos .. thanks

                • vovod voevod
                  vovod voevod  2 days back

                  Torque wins races....

                  • Cossiedriver RS
                    Cossiedriver RS  2 days back

                    Exhaust RESONANCE, coupled with a suitable camshaft = POWER... Remove the muffler, and LOSE power, as the resonance will take place at a different RPM, that no longer matches the RPM the camshaft was designed to give peak power at...

                    • Sune Olsson
                      Sune Olsson  3 days back

                      Maby you shell learn abot V12 Merlin and Griffon Engie,,,, Yes,,, build for this purpuse,,,, not a normal engie

                      • Ken McNaughton
                        Ken McNaughton  5 days back

                        for Christ sake what is this guy on, I'll bet he can't talk at all with his hands tied behind his back.

                      • Recksom Gaming
                        Recksom Gaming  5 days back

                        first video that make sense to me

                        • Cole Rippeon
                          Cole Rippeon  5 days back

                          They never made a v4 2 stroke on the saab. The saab sonet had two engine options, an inline 3 cylinder 2 stroke or a 4 stroke v4

                          • Konrad Hittner
                            Konrad Hittner  5 days back

                            Scotty—I had a ‘72 Saab Sonett V-4 years ago. It was a 4-stroke engine—actually, it was a Ford V-4. Earlier Saabs (before ‘68), including the Sonett, had 3-cylinder 2-stroke engines. The 2-stroke engines were supposed to be easier to start at the extreme low temps of Swedish/Scandinavian winters, like older snowmobiles, etc.

                            • hood hussler
                              hood hussler  6 days back

                              “You can’t have a car that honks like a goose” 😂

                              • Rocking Rolling
                                Rocking Rolling  6 days back

                                Can you please do a Sea Foam video don’t know it I did it right

                                • Jonathan Fruendt
                                  Jonathan Fruendt  6 days back

                                  my infiniti backfired even before i straight piped it

                                  • Superman Vapor
                                    Superman Vapor  6 days back

                                    What about catalytic converter should I remove it also? There's no emissions law where I live.

                                    • Martin Garcia
                                      Martin Garcia  7 days back

                                      yeah, with this guy waving in planes I get a bit sick to my stomach, LOL

                                      • oldskoowl & pebbles travels

                                        yep same in Western Australia Scotty but what they can't see can't hurt them LOL

                                        • Marlon Alberto Rodriguez

                                          People say my voice is muffled and I do suffer from asthma. Makes sense, I'm not having good oxygen flow. I'll ask my doctor to remove my catalítico out my throat.

                                          • POOPY PUPPY PRODUCTIONS

                                            I'm almost 70 years old now. In 1970, I bought a 1967 Shelby GT500 and had a blast with it. Now-a-days, I don't shive-a-git. I have fun now driving the speed limit (or less) and regardless of which lane I am in or where I'm going, I like to keep my LEFT TURN SIGNAL ON. LOL

                                            • Tommy !
                                              Tommy !  1 weeks back

                                              I removed my exhaust back box ( muffler) and took the cat out, car's quicker but put the back box back on coz it's to noisey but left the cat off.

                                              • 1200sbeemer
                                                1200sbeemer  1 weeks back

                                                One of the funniest things I’ve ever seen, years back I saw a plastic newspaper mailbox mounted upside down on this guys El Camino for his hood scoop. It was painted but you could still see the name of the newspaper’s emblem.

                                                • NaeMuckle
                                                  NaeMuckle  1 weeks back

                                                  The back fire in modern sports cars is done electronically on purpose to make it sound cool.

                                                  • W. Rusty Lane
                                                    W. Rusty Lane  1 weeks back

                                                    I'll bet you couldn't talk if someone cut off yer arms.

                                                    • Paul Rice
                                                      Paul Rice  1 weeks back

                                                      Just get an electric ⚡️ car 🚗 and use the muffler to call cows 🐄

                                                      • 2 Tall
                                                        2 Tall  1 weeks back

                                                        shut up already

                                                        • HENZEK1
                                                          HENZEK1  1 weeks back

                                                          4:33 That is a 4-stroke Honda knock off engine.
                                                          Not a 2-stroke!

                                                          • Mike England
                                                            Mike England  1 weeks back

                                                            If you tie his hands could he still talk?

                                                            • Doug Antelman
                                                              Doug Antelman  1 weeks back

                                                              Removing your cars muffler is just stupid. Get a high performance muffler with better flow

                                                              • karbinunit
                                                                karbinunit  1 weeks back

                                                                How do you cope when driving though the different states, if your car is legal in your own state but not in the states your driving through!?

                                                                • Cambodia
                                                                  Cambodia  2 weeks back

                                                                  Never knew muffler, muffle sound of vehicles. Lol. Thanks for the definition Scotty

                                                                  • Christopher Olszewski
                                                                    Christopher Olszewski  2 weeks back

                                                                    Vehicles don't need back pressure but it's been proven the design of collectors and exhaust manifold have what's called a scavinging effect Which most factory exhaust incorporate slightly

                                                                    • Cars and Fun
                                                                      Cars and Fun  2 weeks back

                                                                      Wanna know a kicker? Theres no such thing as back pressure, at least, not for normal cars, its more applicable for race cars, just like aerodynamics, it hardly plays a roll in fuel economy unless you are doing 140+ mph

                                                                      • Dewayne Thomas
                                                                        Dewayne Thomas  2 weeks back

                                                                        Legal!

                                                                        • WARPAINT GAMER
                                                                          WARPAINT GAMER  2 weeks back

                                                                          i backfire at least 2 times a day.

                                                                          • Adam c
                                                                            Adam c  2 weeks back

                                                                            You can also replace the muffler bearings and headlight fluid!

                                                                            • Phill Huddleston
                                                                              Phill Huddleston  2 weeks back

                                                                              One of these days he will reveal how he boosts his energy though from the look of it it may or may not be legal :(

                                                                              • No light, no water, no late night snacking.

                                                                                1:43 the sound my cat makes when she wakes up at 3am and wants to be fed.

                                                                                • Ender
                                                                                  Ender  2 weeks back

                                                                                  I thought reducing backpressure cause more heat to flow through the exhaust port, isn't that why they sometimes use sodium filled exhaust valves?

                                                                                  • Joe Rogers
                                                                                    Joe Rogers  2 weeks back

                                                                                    one in correct statement. The V4 engine you mentioned was a 4 stroke. It came after the 3 cylinder two stroke engines that Saab first used. I had a saab with a v4 4 stroke engine.

                                                                                    • Samuel S.
                                                                                      Samuel S.  2 weeks back

                                                                                      Many loud cars in NYC-NY State. DMV or law enfroment doesn't bother unless someone complains.

                                                                                      • Joshua K
                                                                                        Joshua K  2 weeks back

                                                                                        "The legality is a no man's land!!!" LMFAO!!!

                                                                                        • Joshua K
                                                                                          Joshua K  2 weeks back

                                                                                          This dude is like my new favorite youtuber, always hated working on cars an trucks til i started seeing this dudes videos an saw him change brakes with one hand!! Lmao! Was like wth!!! Awesome vids!

                                                                                          • Gary
                                                                                            Gary  2 weeks back

                                                                                            Back fire is through the intake after fire through the exhaust! Just to be technical.

                                                                                            • mc cass
                                                                                              mc cass  2 weeks back

                                                                                              Scotty, in modern vehicles, will an ECU push more fuel when you 'open up' the exhaust/intake?