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Replacing exhaust (cat back)

Discussion in '1st Gen. Tacomas (1995-2004)' started by Jolly Onion, Sep 12, 2019.

  1. Sep 12, 2019 at 10:11 AM
    #1
    Jolly Onion

    Jolly Onion [OP] Cheap is not Good & Good is not Cheap

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    Hello gentlemen.

    Time to replace the exhaust after 107K miles.

    Looking at Rockauto, they have BOSAL 295187 & ANSA TY3807. Which one have you used, and your feedback will be appreciated.

    If it is a tie, I am going to order the Bosal from Amazon ( free shipping)

    I plan on cleaning it well and painting it with BBQ paint for a little more longevity (at least from outside)

    Thanks and have a pleasant day.

    Alex
     
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  2. Sep 12, 2019 at 11:00 AM
    #2
    jbrandt

    jbrandt ......LOADING

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    There is quite a bit of moisture rolling through the exhaust from the INSIDE, so you're not really going to do all that much to prevent rust. It'll still rust from the inside out.

    You can go cheap and end up replacing it sooner, or get stainless steel and likely never have to replace it.
     
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  3. Sep 12, 2019 at 12:50 PM
    #3
    Jolly Onion

    Jolly Onion [OP] Cheap is not Good & Good is not Cheap

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  4. Sep 12, 2019 at 12:55 PM
    #4
    Taco critter

    Taco critter Mall crawler proud , patw and ,ttc#0247

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  5. Sep 12, 2019 at 1:01 PM
    #5
    coopcooper

    coopcooper certified youtube mechanic

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    Gibson, solid quality and they have oem style cat backs if you want to keep the oem sound pretty sure all their stuff is 304 stainless
     
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  6. Sep 12, 2019 at 1:15 PM
    #6
    Oomaxse

    Oomaxse Well-Known Member

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    I went with Magnaflow. 100% stainless and the fitment is spot on. Sound is louder than stock without drone.
     
  7. Sep 13, 2019 at 12:45 PM
    #7
    taco57

    taco57 Well-Known Member

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    I have Bosal on mine for at least 10 years at this point. Muffler starting to rust at the back pipe, filled with muffler putty for now. Lol. Anyway, the pipes are holding up well. This is an Ohio truck so winter applies.
    It is louder than stock but pleasantly so, no drone at all.
     
  8. Sep 23, 2019 at 8:43 AM
    #8
    Jolly Onion

    Jolly Onion [OP] Cheap is not Good & Good is not Cheap

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    I bought the Bosal plus new hardware and oxygen sensors. The quality of the Bosal (for the $) is very good. The pipe is HD and not made out of coca cola cans. Fit was spot on. You have to be very careful in taking off the nuts for the front oxygen sensor as if they break, it is a major PITA to fix it. Heating it worked as usual. The spare tire has to be lowered to change the exhaust system. Good time to check and lubricate the cable.

    Some pictures are attached.

    PS: Purchased the Bosal from Amazon with free shipping.

    I need to change the rear bumper guard. Any suggestions? looking for basic, decent quality product that will last 5-10 years.

    T1.jpg
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    T6.jpg
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    T8.jpg
     
    Last edited: Sep 23, 2019
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  9. Sep 23, 2019 at 2:33 PM
    #9
    GQ7227

    GQ7227 mw survivor

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    did you skip out on the BBQ paint mentioned in the first post?

    i wanted to see what that was all about!
     
  10. Sep 23, 2019 at 4:44 PM
    #10
    Jolly Onion

    Jolly Onion [OP] Cheap is not Good & Good is not Cheap

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    Yes I did. If the system lasts me 5 years, I am happy. Also did not want to smell burning paint. The idea comes from drag racing days, when we would paint headers with VHT paint, start the engine, let it heat up, and as soon as it started to smoke a little, you shut the engine and let it cool off. We would repeat the process a few times and the paint would stick.

    Again, for $130, The Bosal is great value.
     
    Last edited: Sep 23, 2019
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  11. Sep 23, 2019 at 11:25 PM
    #11
    Matermax

    Matermax Well-Known Member

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    340K all stock exhaust
     
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  12. Sep 24, 2019 at 12:56 AM
    #12
    QMEDJoe

    QMEDJoe Proverbs 3:5-6

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    Fox 2.0 Coilovers in the front and Fox 2.0’s in the rear, Total Chaos UCA’s, Al-lpro expo leafs, K&N cold air intake, TRD headers,Magnaflow catback exhaust,URD short throw shifter, switched out my 60/40 bench seat for some Tacoma Limited seats, Replaced the vinyl shift boot for a leather one, completely soundproofed the cab w/ Frost King. Replaced stock radio with a Pioneer AVH series head unit. Focal component system w/a 10" sub powered by 2 Alpine amps. Weathertech floor mats. Line-X'd the bed. SCS Ray 10’s, Installed an A.R.E. MX series camper shell. All-Pro Apex front bumper w/ All-Pro skid plates all the way back to the Trans. Low Range fuel skid plate.
    I “liked” my MagnaFlow but it’s pretty rusty now. It’s still sounds good but I was expecting a lot more time before it rusted that bad.

    Here’s a quick sound clip.

    https://youtu.be/Ju7_6mOLEEY
     
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  13. Sep 24, 2019 at 5:39 AM
    #13
    Tacowaco

    Tacowaco Well-Known Member

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    I put a Gibson stainless on my last Taco (2.7L) and three years later when I sold it the exhaust still looked new. When I need to replace this one (3.4L) I'll be using Gibson I think.
     
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  14. Nov 3, 2019 at 9:27 AM
    #14
    Arctic Taco

    Arctic Taco Serenity-the Arctic Taco, another slow build

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    I went with a Borla cat back, had some drama fitting it to cat and TRD header. I like the sound but it seems like there is a lot of aggravation getting all the bits and pieces to fit right. Seemed like it may have been more for a 2wd mall crawler.
    If I had it to do again, I would definitely go with MBRP. I installed one on my 2001 CTD, in about 2 hrs crawling around in the gravel. Fit like it was made for it- go figure....
     
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  15. Nov 3, 2019 at 9:37 AM
    #15
    joe25rs

    joe25rs Well-Known Member

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    I currently have a Bosal replacement catback on my truck. Nice and “stock”. Unfortunately, it is developing more surface rust than I would like. (Blame coated mild steel) Anyway, I’m tempted to upgrade to a stainless JBA...

    A guy on YouTube posted a decent sample of the JBA on an ‘03. Makes a compelling case to upgrade ;)

    https://youtu.be/4LJe3EiejuM
     
  16. Nov 3, 2019 at 10:45 AM
    #16
    GQ7227

    GQ7227 mw survivor

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    AZ lucky you lol

    i don't have TRD headers so i don't know what kind of sound you are looking for :notsure:
    my dog no longer hears me coming home up the driveway anymore like she was used to with the weathered stock
     
  17. Nov 3, 2019 at 5:22 PM
    #17
    Logger

    Logger out for a rip are ya bud?

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    Just replaced my OEM exhaust from the cat back with the Bosal off of Amazon 129 free shipping. Really wanted to spring for the stainless Gibson or JBA.

    I realize I’ll probably replace it in a couple of years but it’s all I can afford. The fit is absolutely perfect and it does have a little rap to it if you rev it. Also taking off it’s got a noticeable tone (not bad).

    If you’re planning on replacing a cat back system, pick new flange nuts and bolts, Toyota gasket for the flange, o2 sensor gasket and two new stainless nuts and washers for the o2 sensor studs. The studs are 8mmx1.25.

    There’s no need to drop the spare, just jack the truck up and allow the rear end to drop down a few inches, the exhaust and tailpipe can be fished through the frame and leaf spring.
     
    Last edited: Nov 3, 2019
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  18. Nov 4, 2019 at 5:30 AM
    #18
    taco57

    taco57 Well-Known Member

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    The Bosal muffler has blown through my temp putty repair at the tailpipe. Never been crazy about the added sound although it is not bad.

    My question now is, are there any options out there for OEM quietness and back pressure requirements? I think my little 2.7 needs to have a good amount of back pressure to help the bottom end. I prefer stainless steel options for longevity but would go with OEM if I could find a good Toyota parts house that won't clean me out.

    Thoughts?
     
  19. Nov 4, 2019 at 5:37 AM
    #19
    xtremewlr

    xtremewlr Well-Known Member

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    https://vpexhaust.com/exhaust-back-pressure-a-myth/

    Your engine does not need back pressure.
     
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  20. Nov 4, 2019 at 5:50 AM
    #20
    taco57

    taco57 Well-Known Member

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    Interesting read, thank you.

    I am not sure if that is the end all argument however. Back in the day I had a BMW 325i of which had an actuator valve on one of the pipes on the two pipe opening muffler that remained closed during normal driving and acceleration. Only at full throttle or after a certain RPM would it open. According to BMW, this was for back pressure purposes. As an experiment I disconnected this valve at the muffler to keep it open all the time to see if the sound would change and I felt a real world difference in the low end pull during normal acceleration. Just my personal experience.
     

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