Chris NottMonster Motorsport
Results 1 to 16 of 16
Like Tree1Likes
  • 1 Post By justarn

Thread: Decats and Downpipes S3

  1. #1
    Neutral

    Status
    Offline
    Join Date
    May 2013
    Location
    Channel Islands, Jersey
    Posts
    68

    Decats and Downpipes S3

    Hi Guys,

    Im hoping you can help me out, i have been trawling the forum trying to find out about decats and downpipes. I have an AMK S3 and trying to get some more power. What decat is best? is it hard to fit, as i don't want to pay loads for fitting.

    I really do want a whole cat back system like Milltek but cant afford it. So is fitting a decat and downpipe beneficial and easy without one?

    What i have found so far is:
    XS power
    Relentless
    Pipewerx

    I know this has been covered in parts before, but i t would be really good if you could give me any help. Experiences of any set up.

    cheers,

    J
    Audi S3 AMK, Badger 5 Tip with Cone and Heat Shield, Forge 007P (green spring), de-cat pipe

  2. # ADS
    ADS
    Join Date
    Always
    Location
    Global
    Posts
    Many
     
  3. #2
    cecilthesausage's Avatar
    ...It's Never Finished...

    Status
    Offline
    Join Date
    Jul 2010
    Location
    Teesside
    Posts
    933
    Pipewerx is the best out of them 3.... I wouldn't even entertain the other 2

  4. #3
    Neutral

    Status
    Offline
    Join Date
    May 2013
    Location
    Channel Islands, Jersey
    Posts
    68
    Thanks for you reply, much appreciated. Do you have one fitted? Any experience of fitting to standard exhaust?
    Audi S3 AMK, Badger 5 Tip with Cone and Heat Shield, Forge 007P (green spring), de-cat pipe

  5. #4
    cecilthesausage's Avatar
    ...It's Never Finished...

    Status
    Offline
    Join Date
    Jul 2010
    Location
    Teesside
    Posts
    933
    I don't have one... Mine is custom because I have bigger turbo... Xs Power and Relentless are the same thing... John Ashley Exhaust do decat pipes I have had one of these...

  6. #5
    3rd Gear

    Status
    Offline
    Join Date
    Aug 2011
    Location
    Plymouth
    Posts
    614

    My Social Networking

    Add Lavis89 on Facebook
    On my k03s a3 I noticed quite a difference, when cruising you wouldn't event notice you had a decat, but when you put your foot down mine seemed to help the turbo spooling up earlier thus giving more torque and power earlier in the range (and sounded nice)
    2001 1.8T Quattro Sport 89k covered ARY engine.
    Remapped at Badger 5, 213bhp - 235lb/ft torque.
    HS2K cone, FMDV008, Silicon TIP, 18" RS4 (reps), AP coilovers, Catch can, n249 bypass, Toyosport 3" Downpipe/Decat, S3 Front brakes, Polyflexed Dogbone, S3dave adjustable tie bars

    Soon to be done: SAI delete, Install the toyosport FMIC i have kicking about in my living room

  7. #6
    justarn's Avatar
    silver sleeper

    Status
    Offline
    Join Date
    Mar 2013
    Location
    kent nr maidstone
    Posts
    589
    if you dont want to go crazy just get a remap mate, dunno if anyone in jersey does it but maybe someone could help you upload a generic map?
    1999 apy s3, black & blue interior,dare bbs lm's, s2000 filter, relentless v3 manifold, relentless downpipe and sports cat, scorpion cat back system, stock dump valve, badger 5 v3 tip, bam rocker cover and push in coilpacks, toyosports fmic, amd stage 2+ remap 280.3bhp 263.9 lb/ft.

  8. #7
    1st Gear

    Status
    Offline
    Join Date
    Feb 2012
    Location
    Rutland
    Posts
    131
    I have a relentless dp with 200 cell cat mated to standard exhaust, s2k filter and badger 5 tip and my car made 273bhp and 310ft/lb on r techs rollers. The dp made a big difference once fitted but was a complete arse to fit to be honest. If you don't want to spend much get an intake, filter and decent map and try to forget about the car!
    2001 AMK S3 in Goodwood Green

  9. #8
    justarn's Avatar
    silver sleeper

    Status
    Offline
    Join Date
    Mar 2013
    Location
    kent nr maidstone
    Posts
    589
    same mate thats what i was getting at, i have the v3 manu aswell and made 280 and 263 torques when mapped by amd! the dp's are a *******! just map it unless you plan on going hybrid turbo imho...
    dancuz likes this.
    1999 apy s3, black & blue interior,dare bbs lm's, s2000 filter, relentless v3 manifold, relentless downpipe and sports cat, scorpion cat back system, stock dump valve, badger 5 v3 tip, bam rocker cover and push in coilpacks, toyosports fmic, amd stage 2+ remap 280.3bhp 263.9 lb/ft.

  10. #9
    limbo118118's Avatar
    LORD

    Status
    Offline
    Join Date
    Oct 2009
    Location
    Wrexham.. North Wales
    Posts
    292

    My Social Networking

    Add limbo118118 on Facebook
    i had relentless DP to decat then to rest of miltek system, yes DP was a b*tch to fit but i managed, hell of a difference over standard! worth the money!

  11. #10
    Neutral

    Status
    Offline
    Join Date
    May 2013
    Location
    Channel Islands, Jersey
    Posts
    68
    Hi Guys,
    Thanks for all your inputs and thoughts its just what i needed. Dancuz and Justarn you both sound like you have the mods i would like. However as i live in Jersey there is only really the generic REVO map, not ideal but the only real option other than a dodgy garage. In addition we don't have MOT's here so i though a dp and decat would be a good idea. As you have said its such a pain and problem, i think i will get the decat and REVO map. I already have the badger 5 TIP.

    This leaves me with what decat to buy, as celtis suggested the John Ashley looks good. I see they had a group buy on here years ago, did people rate them? Also what is THS, apparently they do/did one too, but it seems to have dents on it.

    Cheers again, and dancus its easier said than done to forget about the car
    Audi S3 AMK, Badger 5 Tip with Cone and Heat Shield, Forge 007P (green spring), de-cat pipe

  12. #11
    Neutral

    Status
    Offline
    Join Date
    May 2013
    Location
    Channel Islands, Jersey
    Posts
    68
    Quote Originally Posted by limbo118118 View Post
    i had relentless DP to decat then to rest of miltek system, yes DP was a b*tch to fit but i managed, hell of a difference over standard! worth the money!
    ooohhh Limbo, hahaha you putting me in limbo with these decisions!! I actually read your thread last night, how many hours did it take you? Just trying to add up labour costs. If i was to go that route.
    Audi S3 AMK, Badger 5 Tip with Cone and Heat Shield, Forge 007P (green spring), de-cat pipe

  13. #12
    justarn's Avatar
    silver sleeper

    Status
    Offline
    Join Date
    Mar 2013
    Location
    kent nr maidstone
    Posts
    589
    check my threads for a full write up on fitment inc turbo off/on and relentless manifold mate... its doeable but you need an angle grinder to cut the old one out and have to drop the sub frame and its still fecking tight... expect it to take half a day of knuckle scraping, wondering how the hell its going to fit, crap in your eyes pain if your doing it on your drive with an average halfords toolkit and your fairly competent. my relentless fits pretty well but ive heard their quality control is sporadic at best mate, good luck with whatever you decide. also jojo's car is on a generic stage two revo map and it apparently works really well, im on a generic amd stage two and im happy too tbh.
    1999 apy s3, black & blue interior,dare bbs lm's, s2000 filter, relentless v3 manifold, relentless downpipe and sports cat, scorpion cat back system, stock dump valve, badger 5 v3 tip, bam rocker cover and push in coilpacks, toyosports fmic, amd stage 2+ remap 280.3bhp 263.9 lb/ft.

  14. #13
    limbo118118's Avatar
    LORD

    Status
    Offline
    Join Date
    Oct 2009
    Location
    Wrexham.. North Wales
    Posts
    292

    My Social Networking

    Add limbo118118 on Facebook
    Quote Originally Posted by Jersey View Post
    ooohhh Limbo, hahaha you putting me in limbo with these decisions!! I actually read your thread last night, how many hours did it take you? Just trying to add up labour costs. If i was to go that route.
    hah! probably took 3 hours that was with me an a friend, never done one before, theres alot of write ups on here on how to do it, basicaly i went through drivers wheel arch with a electric saw an cut the flexi then used a chopped spanner to undo the 3 DP to turbo nuts. i read up alot before attempting it tho! good look with it tho! i ran no silencers from decat to the miltek backbox, an it sounded great, no drone either

  15. #14
    vrbob's Avatar
    Thats no Moon, Thats a space station!

    Status
    Offline
    Join Date
    Jun 2007
    Location
    Southampton
    Posts
    2,290
    If you want a really cheap decat why not just gut the OEM one
    Audi S3 8L BAM 225 2002 - Ming Blue : Silver Heated Leather, Armrest, RNS-E - Bose, Alloy Mirrors, 18" RSTT`s, Sunroof, Cruise, AutoDim Mirror & Usual S3 Extras.
    Mods : Badger 5 Stg 2 Custom Map, FMIC, 3" DP & 200 Cell Cat, 007P, Jetex Filter & 80mm TIP & Heatshield, Complete LED Kit, Gen VW Aero Wipers, Full Powerflex Kit, R32 RARB, AP Shocks & Springs, 15mm Front & 20mm Rear Spacers, BB Uprated Actuator,
    N249 Delete & Catch Can, AP TVR 4Pot Brakes & DS2500`s, Sachs Carbon/Kevlar Clutch

  16. #15
    Neutral

    Status
    Offline
    Join Date
    May 2013
    Location
    Channel Islands, Jersey
    Posts
    68
    Nice one cheers boys, i will read your threads and do my research and decide from there. Nice to know that some very good known s3's are running generic maps. Gives me a lot more confidence.

    I will no doubt let you know when i've decided. Cheers for the help lads.
    Audi S3 AMK, Badger 5 Tip with Cone and Heat Shield, Forge 007P (green spring), de-cat pipe

  17. #16
    1st Gear

    Status
    Offline
    Join Date
    Feb 2012
    Location
    Rutland
    Posts
    131
    I'm sure you will be pleased with a generic map coming from a standard car IF you get the car ready to the map. I would be deleting the n249 and getting rid of pcv system and installing a catch can as a minimum to try and reduce the likelihood of leaks. I couldn't believe the number of small holes in mine when I did it early on!
    2001 AMK S3 in Goodwood Green

 

 

Similar Threads

  1. new!! Relentless V3 Manifold and Downpipe + Decat
    By AFDanHef in forum For Sale/Wanted - Audi Parts
    Replies: 1
    Last Post: 17th March 2013, 22:45
  2. Relentless 3" Downpipe, decat and Powerflow System Fitted! Lots of Pics!!!
    By Benjiman46 in forum A3/S3 Forum (8L Chassis)
    Replies: 57
    Last Post: 5th August 2012, 00:23
  3. Audi S3 8L cat back Milltek with custom decat and modified downpipe
    By Lizard-Racing in forum For Sale/Wanted - Audi Parts
    Replies: 7
    Last Post: 11th July 2011, 09:38
  4. eBay s3 decat and downpipe?
    By brys3 in forum A3/S3 Forum (8L Chassis)
    Replies: 8
    Last Post: 20th August 2010, 10:53
  5. decat and downpipe on 1.8 turbo?
    By jack.s in forum A3/S3 Forum (8L Chassis)
    Replies: 2
    Last Post: 8th February 2009, 17:56

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO