Catless DP AFTER Exhaust...Sound Question? - Page 2
Welcome guest, is this your first visit? Click the "Create Account" button now to join.

User Tag List

Page 2 of 3 FirstFirst 1 2 3 LastLast
Results 11 to 20 of 27
Like Tree5Likes

Thread: Catless DP AFTER Exhaust...Sound Question?

  1. #11
    FST Junkie! G heinrich's Avatar
    This user has no status.
     

    Join Date
    Jun 2018
    Posts
    1,026
    Mentioned
    11 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 1LoudST View Post
    I noticed about 20% louder, 5% deeper, and about 30% more drone.

    MBRP 3" catback with a Depo Racing catless DP

    I will say this, coasting down, the crackles and pops are just heavenly!

    Can you run the crackles and pops tune with a 100 cell catted downpipe? And even if you can will it damage the cat?

  2. #12
    FST Member luigi90210's Avatar
    This user has no status.
     

    Join Date
    Jan 2017
    Location
    San Diego
    Posts
    46
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by G heinrich View Post
    Can you run the crackles and pops tune with a 100 cell catted downpipe? And even if you can will it damage the cat?
    any tune dumping fuel down the exhaust will damage a cat, imho highflow cats are a waste of money, just go catless, its cheaper, and it wont break like a hiflow cat will(they always die faster than your factory cat will)

  3. #13
    FST Junkie! G heinrich's Avatar
    This user has no status.
     

    Join Date
    Jun 2018
    Posts
    1,026
    Mentioned
    11 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by luigi90210 View Post
    Quote Originally Posted by G heinrich View Post
    Can you run the crackles and pops tune with a 100 cell catted downpipe? And even if you can will it damage the cat?
    any tune dumping fuel down the exhaust will damage a cat, imho highflow cats are a waste of money, just go catless, its cheaper, and it wont break like a hiflow cat will(they always die faster than your factory cat will)
    Well I've already ordered the catted downpipe. My issue is I still have to show all the monitors ready 4 inspection every year which I know I'll still have to run a defiler but at least want it to look like there's something there if they look.

  4. Remove Advertisements
    FocusST.org
    Advertisements
     

  5. #14
    Super Moderator Duece McCracken's Avatar
    Premium Member
    is boosting again, but that 5spd
    life, ugh.
     

    Join Date
    Oct 2014
    Location
    Yardley, PA
    Posts
    6,703
    Mentioned
    287 Post(s)
    Tagged
    4 Thread(s)
    Quote Originally Posted by G heinrich View Post
    Well I've already ordered the catted downpipe. My issue is I still have to show all the monitors ready 4 inspection every year which I know I'll still have to run a defiler but at least want it to look like there's something there if they look.
    To be honest, i always tell people to go catless, and run a defouler. You will most likely need a defouler anyway, to pass emmissions. Which is why you need to get familiar with a local auto mechanic. Mine charges me a coffee and bagel to overlook my catless ridiculousness. Networking is the way to go. Another point, a proper mechanic is hard to come by, i dont trust anyone with my car.

    Direct quote feom my tech " I'm not your mechanic, I only do inspections and alignments, this is your baby" This coming from one of my best friends, lol
    217og likes this.
    Owner and lead tech of Duece's Wrenchworx. The one stop shade tree ST shop.

    Build thread - https://www.focusst.org/forum/focus-...-duecette.html

  6. #15
    FST Junkie! 1LoudST's Avatar
    is popping clutches, not collars
     

    Join Date
    Mar 2017
    Location
    Michigan
    Posts
    1,589
    Mentioned
    22 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by G heinrich View Post
    Can you run the crackles and pops tune with a 100 cell catted downpipe?
    Sure, I ran it with the OEM cat for a while before I went catless. the cat will muffle it a little bit, a 100 cell will muffle it less(by a good amount if I had to guess) that the OEM one does. but its doable, Strat just reccoments that you have an aftermarket turbo back exhaust.


    Quote Originally Posted by G heinrich View Post
    if you can will it damage the cat?
    thats a tough one to say long term. Strat has said that it shouldn't damage anything. however I have a hard time believing that it doesn't put some kind of extra stress on it. it may be fine, it may only take 1 year instead of 10 before it will be due for replacement.
    Last edited by 1LoudST; 03-07-2019 at 04:34 PM.

  7. #16
    FST Member luigi90210's Avatar
    This user has no status.
     

    Join Date
    Jan 2017
    Location
    San Diego
    Posts
    46
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 1LoudST View Post
    Sure, I ran it with the OEM cat for a while before I went catless. the cat will muffle it a little bit, a 100 cell will muffle it less(by a good amount if I had to guess) that the OEM one does. but its doable, Strat just reccoments that you have an aftermarket turbo back exhaust.




    thats a tough one to say long term. Strat has said that it should damage. however I have a hard time believing that it doesn't put some kind of extra stress on it. it may be fine, it may only take 1 year instead of 10 before it will be due for replacement.
    https://youtu.be/vIAG2hLYQ4c?t=78

    thats what happens when you dump fuel through a cat whether its from a popping tune(antilag) or a 2 step, it won't break it right away but it will eventually break it
    Last edited by luigi90210; 03-07-2019 at 03:29 PM.

  8. #17
    I spend too much of my life on FST! Kranny's Avatar
    This user has no status.
     

    Join Date
    Feb 2014
    Location
    IL
    Posts
    590
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by luigi90210 View Post
    https://youtu.be/vIAG2hLYQ4c?t=78

    thats what happens when you dump fuel through a cat whether its from a popping tune(antilag) or a 2 step, it won't break it right away but it will eventually break it
    stratified said themselves they do not add extra fuel to create the noise. they adjust exhaust cam timing iirc

  9. #18
    FST Member Shacker's Avatar
    This user has no status.
     

    Join Date
    Sep 2018
    Posts
    38
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by G heinrich View Post
    Well I've already ordered the catted downpipe. My issue is I still have to show all the monitors ready 4 inspection every year which I know I'll still have to run a defiler but at least want it to look like there's something there if they look.
    Late to the party but wanted to throw in my super timely hindsight wisdom. Moderate to major regret. I wish I’d read more about downpipes before buying. I ignorantly thought that a high flow catted dp would do the job of the factory one but with less restriction.

    Wrong.

    I can run about an hour or two before the car throws the dreaded 420 with the COBB unit. I’m going to have to run a defouler anyway it seems so I wish I’d just gone in full rowdy and run catless. A $500 dollar mistake because who tf wants a used high flow catted dp? Exactly no one.
    2016 ST3
    Mountune FMIC
    COBB RMM
    COBB AP
    COBB CAI
    COBB Catted Downpipe
    Mountune Symposer Delete
    Mountune Catback Exhaust
    Mountune Sport Springs
    Quaife ATB LSD
    Denso Iridium ITV22 Spark Plugs
    ATP GTX2867r Gen2 .64
    cp-e Exhale Cold Charge Pipe
    Tial Q BOV
    Radium Engineering Dual Catch Can
    COBB Surgeline Custom Tune
    Baby Trend Rear Facing 30lbs Limit (upgrading soon!)

  10. #19
    I spend too much of my life on FST! mmst3's Avatar
    is always modding
     

    Join Date
    Oct 2018
    Location
    UT
    Posts
    265
    Mentioned
    27 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shacker View Post
    Late to the party but wanted to throw in my super timely hindsight wisdom. Moderate to major regret. I wish I’d read more about downpipes before buying. I ignorantly thought that a high flow catted dp would do the job of the factory one but with less restriction.

    Wrong.

    I can run about an hour or two before the car throws the dreaded 420 with the COBB unit. I’m going to have to run a defouler anyway it seems so I wish I’d just gone in full rowdy and run catless. A $500 dollar mistake because who tf wants a used high flow catted dp? Exactly no one.
    I got my high flow catted dp from a friend who didnt like it anymore. So I bet someone would take it off your hands. He even installed it for me lol

    '17 MAGNETIC METALLIC ST3
    Turbosmart 50/50 BOV
    AWE Tuning Track Edition
    CJPP High Flow Catted Downpipe
    Maxton Design RS Rear Valance
    Maxton Design Front Splitter/Lip
    RS Summer/Winter Wheels
    Delta Styling Wing
    Airlift 3P

  11. #20
    FST Junkie! G heinrich's Avatar
    This user has no status.
     

    Join Date
    Jun 2018
    Posts
    1,026
    Mentioned
    11 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Shacker View Post
    Quote Originally Posted by G heinrich View Post
    Well I've already ordered the catted downpipe. My issue is I still have to show all the monitors ready 4 inspection every year which I know I'll still have to run a defiler but at least want it to look like there's something there if they look.
    Late to the party but wanted to throw in my super timely hindsight wisdom. Moderate to major regret. I wish I’d read more about downpipes before buying. I ignorantly thought that a high flow catted dp would do the job of the factory one but with less restriction.

    Wrong.

    I can run about an hour or two before the car throws the dreaded 420 with the COBB unit. I’m going to have to run a defouler anyway it seems so I wish I’d just gone in full rowdy and run catless. A $500 dollar mistake because who tf wants a used high flow catted dp? Exactly no one.

    My 100 cell was under $250. You can get a catless DP from Depo for $189. I reverted back to stock for my emissions test and didn't have any problems although with stage 3 bolt ons and a stock tune it runs like complete garbage got -3.8 corrections. It also gave him her own free catback a little drone with the slightest throttle input. And when wide open throttle it's definitely louder.

 

 
Page 2 of 3 FirstFirst 1 2 3 LastLast

Sponsored Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Frpp exhaust with catless down pipe?
    By sleeper17 in forum Focus ST Discussions
    Replies: 5
    Last Post: 03-02-2016, 10:47 PM
  2. Catless Downpipe + Exhaust... but which exhaust?
    By TheDuckies in forum Focus ST Performance
    Replies: 27
    Last Post: 01-21-2016, 04:46 PM
  3. Catless DP Question
    By bosshog85 in forum Focus ST Discussions
    Replies: 8
    Last Post: 12-20-2015, 04:52 PM
  4. Sound Clip of Injen CBE w/MBRP catless DP
    By Vincent LaGuardia Gambini in forum Focus ST Performance
    Replies: 8
    Last Post: 02-22-2015, 08:52 PM
  5. Catless downpipe o2 sensor question
    By rthomas0904 in forum Focus ST Performance
    Replies: 25
    Last Post: 02-11-2015, 07:07 PM
Find us on Google+