Does a Performance Exhaust Increase Horsepower? (How to Install an Exhaust System)

Same category Autos (91858):
Popular videos:
Want a LOUD exhaust? Does an Exhaust System make more Horsepower and Torque? Learn all the tips and tricks on how to install a performance cat back exhaust system with high flow cats, an X pipe, and straight pipes. Watch as I dyno my car before and after the exhaust system installation to see if we make more horsepower and torque!
Plasma Cutter:
Exhaust System:
Impact Gun:
Homemade Penetrating Fluid:
O2 Sensor Sockets:
Reciprocating Saw:
Extendable Ratchet:

β†’ Become a ChrisFix Subscriber:
β†’ Instagram:
β†’ Facebook:
β†’ Website:
β†’ My Channel Home Page:
**If the video was helpful, remember to give it a "thumbs up" and consider subscribing. New videos every Week**
Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.
Tags:  exhaust  headers  muffler  does  a  performance  exhaust  increase  horsepower?  (how  to  install  an  exhaust  system) 

Number of Views: 993,012
Number of Likes: 45,993
Category: Autos
Caption: Hey guys chrisfix here and today i'm . going to show you how to install an . aftermarket exhaust system with common. hand tools so that you could easily do . this at home in your driveway with no . lift and i'm also gonna give you the . best tips and tricks so this install . goes really easy without any issues so . let's get started and the first thing . you're gonna want to do is grab your . penetrating fluid because every stock . exhaust that i've ever seen has rusty . fasteners so what i've been doing for . the past few days is driving up on ramps . grabbing my penetrating fluid and going . underneath the car and you're going to . want to spray down every nut bolt and . connection where the exhaust is held in . and i highly suggest doing this once a . day for a couple of days before you go . and install your exhaust trust me it's . gonna make it so much easier for those . nuts and bolts to come out you won't . strip any you won't round any and you . won't snap any now as these bolts are. soaking in penetrating fluid i have two . main goals with installing this exhaust . the first goal and the most important . goal to me is how this exhaust is going . to sound and to give you an idea this is . what the stock exhaust sounds like . [music]. so there you go pretty quiet as a stock . exhaust usually is but i know this car . has a lot of potential mustangs usually . sound pretty good and i've heard this . exhaust on this model car it sounds . phenomenal and just wait to the end when . we get that installed you're gonna hear . it sounds great so that's the first and . most important goal of mine now the . second goal is to make more power the . stock exhaust is pretty restrictive but . our new exhaust is running too high flow . cats into an x-pipe and then it's going . straight back there's no restriction all . the way out the tailpipe so we should be . making more power and a lot of people . always argue will an aftermarket exhaust . make more power than a stock exhaust . well guess what we're gonna find out . today because we're gonna take this car . completely stock we're heading to the . dyno and we're going to see what kind of . baseline power numbers we're putting . down then we're gonna go and install our . exhaust head back to the dyno and see if . we increase the power decrease the power . or if it's the same so let's get in the . car head to the dyno and get those . baseline numbers and we are at the dyno . this is a hub dyno so you have to remove . the wheels bolt on and adapt it directly . to the hub and then slide the dyno onto . the adapter think of this as like a . treadmill for your car to see how much . power she puts down the stock engine . makes 225 horsepower and 294 pounds of . torque so what do you think the car is . gonna put down at the rear wheels . well let's find out. [applause]. all right so we did better than i . thought we're gonna do we made 189 . horsepower and 255 foot-pounds of torque . that is a lot of torque and one thing to . notice to take a look around fifty two . hundred rpms our power just drops off . all the way to red line at red line at . six thousand rpms we're making like a . hundred and ten horsepower that is . horrible and that's definitely due to . some type of restriction in the intake . and probably the exhaust so let's get . back to the house and install that . exhaust to see if we could get rid of . that restriction make some more power . and more importantly get this mustang . sounding like it should. all right back from the dyno and we have . some improvements to make so i'm gonna . use ramps to lift the front of the car . and then a jack to lift up the rear . be sure to slide jack stands underneath . and carefully lower the car securely on . the jack stands i also like to slide an . extra wheel under the wheel and that . gives us an extra layer of safety so . with the car safely supported now we . could go and work on the exhaust . actually the exhaust is gonna be pretty . hot because we just got back but that . does give us a good opportunity to use a . little trick so grab a spray bottle with . ice-cold water in it and head under the . car now since our exhaust is too hot to . handle we don't want to undo these bolts . right now you'll burn yourself so . instead we're gonna use this heat to our . advantage. grab your spray bottle and spray down . the fasteners so it cooled rapidly you. can hear that cold water turning to . steam as it cools that hot exhaust and . what this trick does is it cools the . metal really quickly so that cracks the . rust inside the threads where we can't . get to it especially with the . penetrating fluid and that's gonna make . taking these bolts out a lot easier now . we need to let the exhaust cool so we . could handle it without getting burnt . and about an hour later the exhaust is . cool enough to handle especially in the . rear where we're gonna start removing it . let's swing around to the other side and . i want to show you how the exhaust is . run so it goes up and over the axle into . the muffler so from the muffler all the . way up and over to the tailpipe is one . piece which makes it difficult to remove . because there's axles in the way so what . we're gonna do is we're gonna cut it . right there to cut the exhaust if you . use one of these inexpensive hand saws. or even better if you have i'm gonna be . using one of these electric . reciprocating saws with a metal cutting . blade because this thing cuts the . exhaust pipe like a hot. knife through butter now with the . exhaust cut slide the tailpipe out of . the hangar and carefully remove the . exhaust by turning it over the axle just . like that so with the driver's side . exhaust cut and removed let's do the . same thing to the passenger side and . perfect there we go so with both . tailpipes cut out now we could go back . under the car and remove the mufflers . each of these mufflers is held in here. and here and right after the h pipe so . we have to undo this bolt here and . there's a bolt here on the other side . that squeeze this together and hold the . two pipes together but before you go . grab your ratchet and try to undo this . spray it down one more time with . penetrating fluid then grab a metal wire . brush and we want to clean the rusty . threads on the bolt the goal here is to . get as much loose rust and debris out of . the threads so when we unscrew the nut . it doesn't get clogged up and make it . hard to remove now we could get the . ratchet and crack the nut free and . unscrew it the rest of the way . good do the other nut as well and you. can see how easily these are coming out . because the simple tricks we used and . now we could slide the coupler back and . hold the muffler down like that now the . only thing holding them a flare-up is . the exhaust hanger which is held in by. these two bolts so let's remove this one . good and that one and hold them up low . up because this bolt is all that's . holding us in awesome and that's one . muffler out and we did the same exact. thing to get the other muffler out and . with both mufflers removed there's only. one more thing that we need to get and . that is the h pipe which has catalytic . converters in it and then it bolts up to . the exhaust manifolds and since we're . working with catalytic converters we're. also gonna have to deal with oxygen . sensors there's gonna be sensors after . the cats and there's gonna be sensors . before the cat's up there so instead of . removing the sensors under the car . because you could get tight in here . we're just gonna disconnect the wiring . harness now we could go to the upstream. sensors and those are located near the . front of the car if we look in front of . the first catalytic converter you can . see the sensor and then here's the . pigtail just disconnect it and we'll do . the same thing on the other side so now . that all four oxygen sensors are . disconnected the only thing holding the . exhaust up is the exhaust hanger right . here and then four nuts two on this side . and two on that side so let's go remove . these nuts starting at the driver's side . exhaust manifold and these can be very . difficult to remove so i have a little . trick and that trick is instead . using the conventional ratchet and . socket like we've been using we're gonna . be using an impact gun now i understand . that everybody's gonna have an impact . gun but trust me rent one borrow one . from a friend or i'll link this in the . description and you could buy one . because an impact gun is gonna remove . these bolts without snapping them watch . this . just get the impact socket on the nut. and the hammering action of the impact . gun loosens the nuts right up without. ramming them or snapping the stud that's . the bottom now let's do this out and . with the driver's side undone now we. could come to the passenger side which . is gonna be a little trickier sure we . could easily get to the top nut but the. bottom nut is buried tight all the way . back behind the oxygen sensor which . we're gonna have to remove so heat the . threads up which is gonna make this . easier to loosen and there really isn't . much room to get the wrench in here but . luckily this loosened right up now this . is so hot and i can't handle it so i'm . gonna cool it down with some water and . now we get hand loosen it the rest of . the way then grab the impact with a . swivel socket and impact that not loose . beautiful and for the final note we . could just as easily get in there with . our impact and budget right out but . instead of doing that i don't want . people who don't have impact guns to get . discouraged if you can't get one if you . can't borrow one you can't buy one don't. worry this job is completely doable with . common hand tools and to prove that to . you i'm gonna remove the top nut with a . ratchet just extend the ratchet for some. more leverage crack the nut loose and . loosen t

You may also like: