Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    VWVortex


    Page 2 of 2 FirstFirst 12
    Results 26 to 46 of 46

    Thread: Cat-less vs Catted

    1. Member Josein06GLI's Avatar
      Join Date
      Jun 28th, 2008
      Location
      San Diego, Ca
      Posts
      4,084
      Vehicles
      2012 Audi , 2006 VW Jetta GLI, 1989 MK2 GTI VR6
      11-19-2009 01:57 AM #26
      well which brings me to the next topic of catted and non catted dp's. first and formost especially with the economy as fuc*ed as it , non catted dp's are wayyyyy cheaper and a quick way to get to stage 2 power when chipped. when i did mine i didnt have 1000 for an APR 200 cell catted dp so i went with an atp catless, i love it, no issues and its been on the car for a while i got 71k miles on my 06 and put it on around 20k or so, no rust either, plus it was used and i go for like 300 shipped. 700 bucks saved, wheres the problem? lol
      2006 BMP VW JETTA GLI DSG some coils, some bolt ons and some wheels.
      1989 VW GTI 2.8l VR6 some coils, some bolt ons, and some wheels.
      2012 Audi all stock, its hers. she dont want me messing with it...yet.

    2. Member Krieger's Avatar
      Join Date
      May 5th, 2009
      Location
      Orlando, FL
      Posts
      4,182
      Vehicles
      Turbocharged 2004 Civic SI with K20/K24 engine swap, 2006 Audi A3
      11-19-2009 02:12 AM #27
      u paid 300 for a used catless ATP pipe??? dude, u overpaid... i got mine for 160 shipped to my door, new, and its an exact replica of the ATP. welds are fantastic and fit perfectly. hell, new ATPs are 360.
      but anyways, u can buy a cat for a decent price http://www.clubrsx.com/cr/VIB-...oogle
      this thing flows REALLY well and i used it on my last car plus helped my bro install alot of these. good construction and last for a long time with no rattles or ****.
      2006 Audi A3 | 2.0T | 6MT | APR Stage 2+ | Fully loaded ECU | FK grill | EJ CAI | BSH TBP |EJ DV Reloc. | Eurojet TBE | EuroJet Catch Tank | Cross drilled and Slotted Rotors | EBC "Redstuff" Kevlar | Raceland Coilovers | Forge Side to Side Short Shifter | Forge Front to Back Short Shifter | Devil's Own DVC-30 Methanol injection | BSH RSB | BSH Motor mount Kit | 42 DD Shifter Bushings | HPFP Stage 1 upgrade |

    3. Member applen's Avatar
      Join Date
      Sep 26th, 2005
      Location
      Boulder, CO
      Posts
      707
      Vehicles
      had: '92 urS4, 07 GTI, '92 16V B3 Wagon, '74 914 now: '86 QSW
      11-19-2009 03:13 AM #28
      Quote, originally posted by Josein06GLI »
      700 bucks saved, wheres the problem? lol

      well there is that whole global warming thing we got goin on here... thanks for your generous contribution [IMG]http://**********************/smile/emthdown.gif[/IMG]

    4. 11-19-2009 09:38 AM #29
      Quote, originally posted by applen »
      well there is that whole global warming thing we got goin on here... thanks for your generous contribution [IMG]http://**********************/smile/emthdown.gif[/IMG]

      Global Warming? uncatted 2.0T VW's hardly contribute to that isht. Things like HUGE Factories & Chemical Plants etc... etc... take their tool on the enviornment.
      Sold the VAG COM

    5. Member Krieger's Avatar
      Join Date
      May 5th, 2009
      Location
      Orlando, FL
      Posts
      4,182
      Vehicles
      Turbocharged 2004 Civic SI with K20/K24 engine swap, 2006 Audi A3
      11-19-2009 10:50 AM #30
      Quote, originally posted by rippie74 »
      Global Warming? uncatted 2.0T VW's hardly contribute to that isht. Things like HUGE Factories & Chemical Plants etc... etc... take their tool on the enviornment.

      this. the 2.0T is a very clean engine, except for running rich.
      BUT, its still better if we all had cats... but hey, what are u gonna do about it.
      2006 Audi A3 | 2.0T | 6MT | APR Stage 2+ | Fully loaded ECU | FK grill | EJ CAI | BSH TBP |EJ DV Reloc. | Eurojet TBE | EuroJet Catch Tank | Cross drilled and Slotted Rotors | EBC "Redstuff" Kevlar | Raceland Coilovers | Forge Side to Side Short Shifter | Forge Front to Back Short Shifter | Devil's Own DVC-30 Methanol injection | BSH RSB | BSH Motor mount Kit | 42 DD Shifter Bushings | HPFP Stage 1 upgrade |

    6. Member SmithersSP's Avatar
      Join Date
      May 24th, 2006
      Location
      Charlotte, NC
      Posts
      5,109
      Vehicles
      REVO STGIII S3 K04 06' PG GLI, C2 97' GLX
      11-19-2009 10:56 AM #31
      Actually Rippie I believe that automobiles are the source of the majority of air pollution today. Couple this with the fact that my FSI run 12:1 at WOT and that leaves the potential for a large quantity of co2 and NOx emissions.

      P.S. As an engineer I believe that we'll all screwed unless we change our primary energy source period. In the long term one catless dub won't level a rainforrest. That being said a catless car is worse for the environment than a catted one.


      Modified by SmithersSP at 7:58 AM 11-19-2009
      Chapter 11 Dubs
      Revo STGIII Kegerator
      Quote Originally Posted by jhines_06gli View Post
      I fix Pete's car to keep cold, cheap beer flowing for the club at shows.

    7. Member Josein06GLI's Avatar
      Join Date
      Jun 28th, 2008
      Location
      San Diego, Ca
      Posts
      4,084
      Vehicles
      2012 Audi , 2006 VW Jetta GLI, 1989 MK2 GTI VR6
      11-19-2009 01:19 PM #32
      thanks rippie for the defense and i just looked at paypal and i paid 180 for the dp and it spend like 60 bucks on tools to install myself so almost 3 bills. ok not wanting to fight or argue via internet this is a forum and everyone does have an opinion i stated mine. love it or hate i dont care
      2006 BMP VW JETTA GLI DSG some coils, some bolt ons and some wheels.
      1989 VW GTI 2.8l VR6 some coils, some bolt ons, and some wheels.
      2012 Audi all stock, its hers. she dont want me messing with it...yet.

    8. Member bostonaudi1's Avatar
      Join Date
      May 13th, 2006
      Location
      Charleston, SC
      Posts
      1,046
      Vehicles
      2015 Golf TDI, 1995 BWM M3
      11-19-2009 08:22 PM #33
      Quote, originally posted by Krieger »
      stock cats are small, thick, and super restrictive.
      i have an ebay pipe cuz it works, but im gonna get a 200 cell metallic cat. might be from magnaflow, but i like random technology too.

      The pre-cat on the Mk5 is definitely a restriction, I run an AWE downpipe w/metal cat and my engine revs ridiculously fast and makes a ton of power with the stock K03. Taking that first one out is key. I feel no need to run totally cat free.
      The cheapo $100 ceramic cats that usually come w/aftermarket systems are sometimes more restrictive than factory cats, which aren't always that bad.
      A cat is a modern miracle invention, for a slight restriction, it cleans the heck out of the exhaust. Anyone remember seeing pictures of LA basin from the 60's during a smog inversion?




      Modified by bostonaudi1 at 8:30 PM 11-19-2009
      2015 Golf TDI 6sp 4dr
      1995 BMW M3
      PCA HPDE Instructor

    9. 11-19-2009 10:15 PM #34
      i have a catless 42DD 3" setup on my mk5 gti. I went this route cause im a cheap ass and it was much cheaper to go catless.
      The stock cats main downfall is because its RIGHT after the turbo. a QUALITY highflow aftermarket cat vs catless gains are marginal at best when talking about running a ko3 or ko4 turbo.
      please spare us the 1990 cat analogies guys.............that is beyond outdated moot point.
      I have a customer with a BMW Z-3 that did some insane custom turbo, meth injection, built motor, HUGE custom wheels out back(he's an engineer and did the majority of the stuff himself). I asked him his thoughts on why with all that power over 500 wheel. he was still using a stock cat welded into his custom exhaust..........he said you know I did a test pipe setup on the dyno and saw MAYBE 10 crank hp......he felt that was not worth the trouble in the scheme of things seeing as how he could not hook at all anyways!
      FWIW im going to add a cat to my setup because my garage smells HORRIBLE for at least 1 hour when i get home and it drives me crazy. I do back into the garage which adds to the issue.


      Modified by RABIDRABBIT1983 at 4:49 AM 11-20-2009


      Modified by RABIDRABBIT1983 at 5:59 AM 11-20-2009

    10. Member bostonaudi1's Avatar
      Join Date
      May 13th, 2006
      Location
      Charleston, SC
      Posts
      1,046
      Vehicles
      2015 Golf TDI, 1995 BWM M3
      11-23-2009 05:42 PM #35
      Quote, originally posted by RABIDRABBIT1983 »
      I have a customer with a BMW Z-3 that did some insane custom turbo, meth injection, built motor, HUGE custom wheels out back(he's an engineer and did the majority of the stuff himself). I asked him his thoughts on why with all that power over 500 wheel. he was still using a stock cat welded into his custom exhaust..........he said you know I did a test pipe setup on the dyno and saw MAYBE 10 crank hp......he felt that was not worth the trouble in the scheme of things seeing as how he could not hook at all anyways!
      FWIW im going to add a cat to my setup because my garage smells HORRIBLE for at least 1 hour when i get home and it drives me crazy. I do back into the garage which adds to the issue.

      That factory BMW cat is most likely metal core. It is well known fact that the factory exhaust on the E36 M3's make all the power you'll ever need, most aftermarkets for that car do nothing other than add noise...
      2015 Golf TDI 6sp 4dr
      1995 BMW M3
      PCA HPDE Instructor

    11. 12-01-2009 12:18 PM #36
      cats? i prefer dogs. definitely catless. who cares about emissions, pollution still exists wether its coming from your car or not.

    12. Member Krieger's Avatar
      Join Date
      May 5th, 2009
      Location
      Orlando, FL
      Posts
      4,182
      Vehicles
      Turbocharged 2004 Civic SI with K20/K24 engine swap, 2006 Audi A3
      12-01-2009 01:59 PM #37
      Quote, originally posted by B4LLS4GN4 »
      cats? i prefer dogs. definitely catless. who cares about emissions, pollution still exists wether its coming from your car or not.

      baby steps. if everyone put it back in there and we actually obeyed the laws that are written and passed for a reason, it would be alot cleaner on our little dirt ball in space.
      im actually having a 200 cell metallic cat put in next week... cant wait! gonna dyno after to see if i lose anything.
      2006 Audi A3 | 2.0T | 6MT | APR Stage 2+ | Fully loaded ECU | FK grill | EJ CAI | BSH TBP |EJ DV Reloc. | Eurojet TBE | EuroJet Catch Tank | Cross drilled and Slotted Rotors | EBC "Redstuff" Kevlar | Raceland Coilovers | Forge Side to Side Short Shifter | Forge Front to Back Short Shifter | Devil's Own DVC-30 Methanol injection | BSH RSB | BSH Motor mount Kit | 42 DD Shifter Bushings | HPFP Stage 1 upgrade |

    13. 12-01-2009 03:54 PM #38
      Quote, originally posted by Krieger »
      baby steps. if everyone put it back in there and we actually obeyed the laws that are written and passed for a reason, it would be alot cleaner on our little dirt ball in space.
      im actually having a 200 cell metallic cat put in next week... cant wait! gonna dyno after to see if i lose anything.

      It'll never be that way thats why you'll always have some who do & some who don't.
      Sold the VAG COM

    14. Member Krieger's Avatar
      Join Date
      May 5th, 2009
      Location
      Orlando, FL
      Posts
      4,182
      Vehicles
      Turbocharged 2004 Civic SI with K20/K24 engine swap, 2006 Audi A3
      12-01-2009 04:23 PM #39
      oh, i know, im just saying, its better if your choose to do it, and the rest of the people on here too. i mean, think about it, if all us euro guys had cats, and the ricers had cats again, thats pretty much everyone out there except cycles and track spec cars.
      but, idk, and i dont really see a point at this point. there is enough C02 in the air that its causing climate change faster than anyone thought possible, so we just need to be ready when the **** hits the fan.
      2006 Audi A3 | 2.0T | 6MT | APR Stage 2+ | Fully loaded ECU | FK grill | EJ CAI | BSH TBP |EJ DV Reloc. | Eurojet TBE | EuroJet Catch Tank | Cross drilled and Slotted Rotors | EBC "Redstuff" Kevlar | Raceland Coilovers | Forge Side to Side Short Shifter | Forge Front to Back Short Shifter | Devil's Own DVC-30 Methanol injection | BSH RSB | BSH Motor mount Kit | 42 DD Shifter Bushings | HPFP Stage 1 upgrade |

    15. 12-01-2009 08:23 PM #40
      when i get an extra buck im going to put a cat on my 42DD setup. Its a hydrocarbon party in my garage for at least 2 hrs everynight when I get home. its obnoxious!

    16. Member INYNN's Avatar
      Join Date
      Apr 14th, 2008
      Location
      Ontario
      Posts
      818
      Vehicles
      2008/VW/GTI
      12-02-2009 02:21 AM #41
      Catless DP all the way! Runs great and smells great too.

    17. Member
      Join Date
      Oct 16th, 2009
      Location
      SF Bay Area
      Posts
      610
      Vehicles
      2008 MkV GTI
      12-04-2009 03:04 AM #42
      I have a catless DP, i regret it now. The smell has gotten on my nerves once it starts to seep its way into the cabin..

    18. Member Krieger's Avatar
      Join Date
      May 5th, 2009
      Location
      Orlando, FL
      Posts
      4,182
      Vehicles
      Turbocharged 2004 Civic SI with K20/K24 engine swap, 2006 Audi A3
      12-04-2009 06:11 AM #43
      then just buy a cat off the net and have a local place weld it in. i was quoted 165 for a magnaflow 200 cell installed. cant wait.
      2006 Audi A3 | 2.0T | 6MT | APR Stage 2+ | Fully loaded ECU | FK grill | EJ CAI | BSH TBP |EJ DV Reloc. | Eurojet TBE | EuroJet Catch Tank | Cross drilled and Slotted Rotors | EBC "Redstuff" Kevlar | Raceland Coilovers | Forge Side to Side Short Shifter | Forge Front to Back Short Shifter | Devil's Own DVC-30 Methanol injection | BSH RSB | BSH Motor mount Kit | 42 DD Shifter Bushings | HPFP Stage 1 upgrade |

    19. Member firstorbit84's Avatar
      Join Date
      Feb 25th, 2006
      Location
      CO
      Posts
      3,871
      Vehicles
      '14 Jetta 1.8T, '13 Focus, '99 911
      08-01-2012 11:06 AM #44
      Quote Originally Posted by Krieger View Post
      im actually having a 200 cell metallic cat put in next week... cant wait! gonna dyno after to see if i lose anything.
      Bumping old a$$ thread.
      Has this guy or anyone actually dynoed a stg 2 car with catless downpipe and then catted?

      I just put a 200 cell magnaflow from 42dd on my 3" dp and could definitely notice some mid-top end losses.
      If your car feels like it's on rails, then you're going too slow.

    20. Member bryangb's Avatar
      Join Date
      Jun 16th, 2010
      Location
      Hanover, PA
      Posts
      15,217
      Vehicles
      '08 GTI, '12 Beetle, '91 Passat
      08-01-2012 12:22 PM #45
      Cats are for hippies
      // Open Road Tuning
      Instagram: @bryangb
      bags and wheels = build thread

    21. Member xtravbx's Avatar
      Join Date
      May 21st, 2005
      Posts
      2,039
      Vehicles
      08 FSI GTI
      08-08-2012 08:36 AM #46
      Quote Originally Posted by firstorbit84 View Post
      Bumping old a$$ thread.
      Has this guy or anyone actually dynoed a stg 2 car with catless downpipe and then catted?

      I just put a 200 cell magnaflow from 42dd on my 3" dp and could definitely notice some mid-top end losses.

      The butt-dyno is really capable of feeling a loss of maybe 3-6hp? I have my doubts.

      Maybe it SOUNDS different up top now, and youre linking the lack of audible "power" to real power?

      Not trying to be a jerk - but I don't think you could actually notice that small change in power.

    Page 2 of 2 FirstFirst 12

    Posting Permissions

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