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Pypes Electric Exhaust Cutout Kit - 2.5 in. (79-14 All)

Market Price $527.99 You Save 10% ($53.00)


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  • Item 20044
  • MPN# HVE10K

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Features, Video & Details

  • Unleash Your Exhaust with a Flip of a Switch
  • Take Your Exhaust Note from Stealth to Screaming Instantly
  • Built in Thermal Protection Device
  • Includes Two 2.5" Y Pipes
  • Also Compatible with Any Pypes 2.5" or 3" Pipe
  • Manufacturer's Limited Lifetime Warranty

Review & Installation Video

Review & Install Video

Flip a Switch. This electric cutout exhaust kit from Pypes will give you the flexibility to switch from a restricted exhaust to a wide open one with the flip of a switch. This kit is far superior to the others on the market, offering better manufacturing, materials, and higher quality components. With the flip of a switch, the included wiring harness allows you to control both cutouts, switching from stealth to screaming in the blink of an eye.

Quality Construction. A CNC machined, polished billet aluminum housing insures a precise fit with the Y pipe, and a double butterfly seal with an o-ring insures leak-free performance. It also features a built in thermal protection device to prevent damage due to engine overload. With stainless steel fittings, hardware and weather-tight exterior connectors, these Pypes exhaust cutouts are guaranteed to last. In fact, Pypes is so confident that these are the highest quality cutouts on the market, they back them with a limited lifetime warranty.

Complete Kit. This complete kit includes two 2.5" Y pipes, 2 cutouts, stainless steel mounting hardware, extra thick gaskets, and wiring harness. Unlike our competitors, who expect you to purchase a Y pipe separately, this complete kit includes Y pipes with a 3" flange for ease of installation.

Application. This Pypes Dual Electric Cutout and Y-pipe Kit is designed for 1979 to 2014 Mustangs equipped with 2.5" diameter Mid Pipe exhaust piping.

NOTE: This system may not be street legal in all areas. Please check your local laws.

Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

What's in the Box
  • (2) 2.5" Y pipes
  • (2) Cutouts
  • (2) Extra thick gaskets
  • Wiring harness
  • Stainless steel mounting hardware
Installation Info
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • Bullitt - 01, 08, 09
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14

Most Helpful Reviews

Great to have if you have cams

One thing I will say is, if you have a good exhaust guy, don't buy the piping, just order the motors and wiring. My exhaust guy made a custom piece for it to bolt up to and only cost me 60 bucks. I did ...

Read More
Helpful (1)

Controlled Chaos

Went with a straight stock out the back with the exhaust tips tucked behind the bumper. The cutouts open and go out the CDC side exhausts. Had a hard time finding the room with the car lowered 2 inches... ...

Read More
Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 17 Reviews

Customer Photos (6) Submit Your Photo

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26 Questions / 13 Answers

Ask a Question

tune using these will screw up a tune when opened ??


  • You may feel a differnence in sound and power but it shouldn't interfere with the tune


    Good Answer (1) (0)

Show 2 more answers Question Resolved

Pypes cutout kit I have an 89 Mustang GT with BBK shorty headers with an X-Pipe. I tried a Dougs cutout kit and it was just to big. There was just no way to install the electric section of the cut outs. Will this system fit for sure. I don't want to buy and just have to send another one back. Thank you for the help. Lonnie


  • As long as the piping on your stang is 2.5" you'll be fine.


    Good Answer (2) (0)

Show 4 more answers Question Resolved

flowmaster super 44 sound? i have a 1999 mustang gt with minor bolt ons and stock exhaust except for flowmaster super 44 mufflers and i wanna know if anyone has an idea on how it would sound. can't find anything on youtube


  • It will sound like a beast out of h*ll. It does not matter what type of exhaust upgrades you have it matters where on your exhaust you put this cutout because fromfrom there back will be flowing out of the cutout when active, Basically will sound like taking your exhaust off.


    Good Answer (0) (0)

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Are mufflers needed? I have Street hooker mufflers, on my '04 GT, it already has a nice throaty rumble. If I add these electric cutouts, will it change the exhaust note to a sloppy dirty tone?


  • The electric cutouts are installed right past your headers. so its exhaust exiting right past the headers and bypasses the mufflers and cats. it will sound more deep because there is no restriction. itll sound great. i have a 2008 mustang gt with the borla atak catback system. i have thumpr cams also and when i open the electric cutouts you can really hear the cams thump hard and you can feel it in your acceleration.


    Good Answer (4) (1)

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what dose this do?, and what will this do?. i have no clue what this is at all but im interested


  • if you have headers on your car and you want to open them to possibly increase your horsepower instead of getting on the ground and crawling under your car to open your headers, with the installation of this kit you just simply flip a switch and they open automatically without you even getting out of the caryou have open exhaust


    Good Answer (1) (0)

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kooks tongtubes? would these fit on with the kooks longtube headers?


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Customer Reviews (17) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Weekend

Installation Cost:$100-$250

  • Loudness / Volume 4.9375 4.9
  • Exhaust Note 5 5
  • Fit & Finish 4.6875 4.7
  • Bang For Your Buck 4.75 4.8

  • 4/5

    Installation Time: Shop Install

    September 19, 2016

    Nice product, great sound, but-------

    Bought these in June and had my macanic install them. What a difference in sound. I have shortly headers with American Thunder Flowmater mufflers. They worked find for about 2 months. Then I opened them up to make a run thru at a car show. I went to close them and they wouldn't close. Had it checked out and found out that the interior switch burned out. Contacted AM and they gave me information on how to get a new switch from PYPES. I called the number and explained what the problem was thinking I'd get a hassle from them. Surprise, with no questions asked, PYPES said they'd send me a new one. They didn't send one; they sent two (2). Hats off to AM and PYPES FOR EXELLANT service. This is why AM is the greatest. I have to rate the product a 4 just because of the switch problem. Waiting to see if this switch goes bad. Otherwise, I'm very happy with this product.


    Year: 2005 Submodel: GT

    Helpful (1) (0)

  • 5/5

    September 07, 2016

    WOW WAKE UP Cutouts

    These are really put together well. They give you plenty of wiring and everything you need to install. I placed them after the low restriction cats before the mufflers and out the side of the car just in front of the rear wheels Love the sound My GT is lowered if you have lowered you car i highly recommend replacing your side skirts with Roush Side Skirt if you go out the side or you will bottom out on you exhaust. The only problem i have with mine is they will not close all the way when very hot but after cooling they are fine no other problems. Love the sound and the look. I have not been to a show where someone did not ask me where i got them


    Year: 2000 Submodel: GT

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    May 13, 2016

    Got a bad batch

    First thing is these things are built good but I must have got a bad one because my cutouts had to be removed when they stopped working and would close or open fully making them rattle horribly. The driver side flap also came loose within a month or so of driving. I do believe these cut outs are built good because I've bought from pypes before and never had a problem with quality.


    Year: 1998 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    May 11, 2016

    08 mustang gt Electric cutout

    Great product lil pricey but definitely worth it i got them install at a speedshop it cost me roughly 300 dollars my toggle switch was install in center console the sound is unbelievable when open and when closed goes back to normal rumble but all the product thanks to American muslce again i love how fast i get my order and ur service must buy for track and street cars


    Year: 2008 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    April 03, 2016

    Controlled Chaos

    Went with a straight stock out the back with the exhaust tips tucked behind the bumper. The cutouts open and go out the CDC side exhausts. Had a hard time finding the room with the car lowered 2 inches... Sounds amazing with the push of a button... Not cheap but worth it for something different.


    Year: 2000 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    March 09, 2016

    Great to have if you have cams

    One thing I will say is, if you have a good exhaust guy, don't buy the piping, just order the motors and wiring. My exhaust guy made a custom piece for it to bolt up to and only cost me 60 bucks. I did the wiring myself on my 2010 base gt. The switch is inside the center console next to the auxiliary hookup. There is a o ring gasket around where the flaps open and close, watch these and make sure they are in all the way. Mine came out partially and am doesn't have replacement gaskets. Other than that I love them. I've had them about a week now and drive everyday with no issues.


    Year: 2010 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    January 18, 2016


    Amazing add on! I have wanted to add cut-outs to one of my cars for a few years now and when I saw this I knew I had to have it. This is mixed with my Magnaflow Competition Cat back exhaust, I thought that was pretty nice and loud already. But when I got installed by flipped that switch for the first time, it was AMAZING! If you want your Mustang to scream with the flip of a switch then this is a must.


    Year: 2013 Submodel: GT Aiea, HI

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    January 08, 2013

    LOVE these

    I had them installed on my 02 GT , and WOW. I have cherry bomb mufflers and didn't think it could sound any better.. and boy I was wrong. With the flip of a switch, my mustang instantly turns into a screaming monster! I have stage 1 comp cams and you can really hear the cam with these. Sounds amazing, couldn't be happier :) My stang also is peppier on the highway with the open pipes. Haven't had a tune for them yet, but looking forward to that as well !


    Year: 2002 Submodel: GT Halifax, NS, Canada

    Helpful (29) (5)

  • 5/5

    Installation Time: Full Day

    September 01, 2013


    WOW, Super loud, rediculiously mean!!!! WOW!!!! I love this, sets off car alarms with the flip of a switch.


    Year: 2011 Submodel: GT Park Forest, IL, USA

    Helpful (4) (0)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    November 02, 2013


    We mounted these cutouts after the hi-flow cats on the xpipe..The resenators were aso delted. The exhaust is now a beat-- I have LTH, catted x pipe, both from Pypes and now this addition is awesum. Can be very loud and sounds like Nascar Pitch when loaded. Quiet when needs to be. (like around the neighborhood) > I love ther feeling of power... I realy thinik I have more. WIll dyno this spring. This addition to my other mods have made my Mustang a real beast. This is one of my best mods !! Friends all love the sound too.


    Year: 2011 Submodel: GT Billings Montana

    Helpful (3) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    November 18, 2015

    Worth every penny

    Bought this for my 14' 5.0, all exhaust stock with cats. Flip of a switch and wow this thing sounds like a monster, yes you do lose torque and power. Got it installed at a friends shop, had custom wiring for switch.


    Year: 2014 Submodel: GT Canyon Country, CA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 17, 2015


    The sound is aggressive and throaty, sure to turn heads, 100 bucks at meineke to install, wired myself. So loud and bassy it vibrates whatever you have in the cup holder


    Year: 2008 Submodel: GT Swansea, SC

    Helpful (1) (0)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    December 26, 2014

    Sleeper approved!

    Installed these on my 05 de-badged stage 3 Roush. Most people think it's a stage 1 or 2, since they don't see the normal "Roushcharged" logo on the hood. Plus how quiet the car is with factory exhaust. When the young punks in their rice burners rev up their weed-eater motors on me, I simply flip the switch and let them know what 550hp really sounds like. It's amazing how quickly their minds change about having a go at me. Just love how I get the best of both worlds with these. Church quiet when I need to be, and Rebel loud when I want to. Recommend pro install. Unless you have a welder, lift and a full afternoon free.


    Year: 2005 Submodel: Other Conway, AR, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    December 23, 2014

    Great addition! I wish all performance vehicles came with this!

    This does require a weld job, had a local exhaust shop install it for ~$100. Shop guy said they were the perfect length to fit inline and that it was an easy install on my '13 GT. I had no issues, I'd suggest asking them to raise your car and show you where they think they will install them if they give you any fuss about it being tricky. I had FlowMaster Outlaw Axlebacks on it prior, and had them put the stock mufflers on when I had these installed (this is because my reason to get these was to be quiet when I wanted, and loud when I wanted). I've noticed a slight decrease in power in the low end, but it seems like I've got quite a jump in power in higher RPMs. The butterfly valves have no leaks and sounds 100% stock when closed, they take approx 2 seconds to fully open and then they have a very nice low rumble, and scream when revved. Very please with this kit, the only thing I would like to change is the switch (not a big deal). It is a momentary switch that you hold down until they open all the way, or hold down until they close all the way. I wish it was a toggle switch so you could just switch to closed or open. Like I said though, not a big deal. Just personal preference.


    Year: 2013 Submodel: GT Jessieville, AR

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    September 29, 2014

    Excellent Sound

    I had the cutouts installed by a shop and completed the wire hookup myself. Instructions were easy to use, and wire install was fairly easy if you any basic splicing wire experience. Tons of compliments when I go from my pypes exhaust system to the cutouts, people are shocked with the sound difference and really like the sound when the cutouts are open.


    Year: 2005 Submodel: GT Thornton, CO, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    August 27, 2015

    pypes cutouts

    pypes were installed from a local muffler shop, they charged me 400 because they needed to make some adjustments since i wanted to keep my off-road x pipe..i also got larger tips installed with the price. i did the wiring myself took about 2 hours just because i double checked everything more than twice..this pypes definetily make a huge difference in power and sound, feel the difference when i take off..haven't had a problem with the cops YET! definitely makes a deeper more muscular tone to your pony..i recommend this item for those that want the loud aggressive sound without having the neighbors hate you, all thanks to the on/off switch!


    Year: 2000 Submodel: GT Torrance, Ca

    Helpful (0) (1)

  • 4/5

    Installation Time: Afternoon

    February 27, 2015

    Easy install amazing sound but clamps could be better

    The install was very simple. Connected it directly to my pacesetter midpipe but you will have to cut out enough of the pipe running to the mufflers to fit them in. The wiring with the included harness was amazingly easy. The harness was a thing of beauty. The sound with my long tubes was awesome. My wife hates loud exhausts and this gave me the best of both worlds


    Year: 2010 Submodel: GT JOHNSTON, RI

    Helpful (0) (1)

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