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Author Topic: another gti turbo decat question  (Read 2971 times)

Offline davemk4

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another gti turbo decat question
« on: 04 January 2013, 21:07 »
after checking ebay out and demon tweeks etc the choice is just silly. after much thought i went against the 3'' turbo back system and ordered the premium end Jetex non resonated cat back with a 2.75''  mandrel instead of the usual 2.5''. should be here soon...........but im in need of a good decat. now ive seen loads of different types i want the best match to my jetex im getting now ive found 3'' decats but.... some are a one piece 2.5'' all the way and some are a 3'' first piece then drops smaller so either

http://www.ebay.co.uk/itm/NEW-VW-GOLF-MK4-GTI-1-8T-3-STAINLESS-DOWNPIPE-DE-CAT-/310336528828?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item48417fa1bc


or

http://www.ebay.co.uk/itm/Audi-TT-A3-bora-VW-Golf-GTi-1-8T-Non-silenced-Exhaust-Downpipe-Decat-de-cat-/200874589626?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Model%3AGolf%7CPlat_Gen%3AMK+IV&hash=item2ec50efdba


then ive seen the ones wiht a 200 cell cat in them 2.5'' all the way

http://www.ebay.co.uk/itm/VW-GOLF-MK4-1-8T-20V-GTI-STAINLESS-STEEL-200-CPI-SPORTS-CAT-EXHAUST-DOWNPIPE-/320994675786?pt=UK_CarsParts_Vehicles_CarParts_SM&fits=Model%3AGolf%7CPlat_Gen%3AMK+IV&hash=item4abcc60c4a

for gain and sound and quality of fitment whats my best option any advice or links to what you guys using be great or ones to stay clear from. i dont want a kit that doesnt line up right etc

thanks in advance  :smiley:
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2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline davemk4

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Re: another gti turbo decat question
« Reply #1 on: 05 January 2013, 15:26 »
:-)
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2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline shaft69

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Re: another gti turbo decat question
« Reply #2 on: 06 January 2013, 11:02 »
Me personally the 3rd one.
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MK4 1.8t bored/stroked 2.0lt AEG crank, 83mm supertech pistons, intergrated rods, ACL race brgs, Flowed large port head, Supertech valves, All ARP bolts, GTX2871r turbo, Tial wastegate, 3" pipewerx dp, REVO stage 3 tune, Direct port water meth, MORE TO COME!!! Ready to go racing
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Offline asboGTI

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Re: another gti turbo decat question
« Reply #3 on: 06 January 2013, 11:22 »
I know people with the sports cat and they still fail the mot with them so just bung the mot guy a 10er to stick the emissions up another car
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vw golf mk4 ARZ 1.8T pipercross panel filter, xenon headlights, JOMS coilovers, forge 007p with green spring, audi tt anti roll bar, 3inch ebay trubo back exhaust, COOKIES MONSTER STICKER(adds bhp I swear)

Offline davemk4

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Re: another gti turbo decat question
« Reply #4 on: 07 January 2013, 21:40 »
can i not use a milltex downpipe/decat with a jetex cat back as they all say that they MUST be used with milltek cat backs. are they saying this so you buy there own kits? my jetex im getting is 2.75'' and i want the 3'' milltek down pipe but unsure if it will fit?
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2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline Wazzzer

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Re: another gti turbo decat question
« Reply #5 on: 07 January 2013, 21:44 »
Miltek DP goes from 3" to the cat then 2.5" out the back
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline NegoGti

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Re: another gti turbo decat question
« Reply #6 on: 07 January 2013, 21:45 »
Hy mate I've got the first one the toyo sport 3'' decat down pipe  for sale if ur interested drop a Pm :)
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Offline davemk4

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Re: another gti turbo decat question
« Reply #7 on: 07 January 2013, 22:05 »
Quote from: Wazzzer on 07 January 2013, 21:44
Miltek DP goes from 3" to the cat then 2.5" out the back

does that mean it wouldnt fit my jetex 2.75'' ?  :embarrassed:
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2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back

Offline Wazzzer

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Re: another gti turbo decat question
« Reply #8 on: 08 January 2013, 12:21 »
Not unless you get an adapter made
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline davemk4

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Re: another gti turbo decat question
« Reply #9 on: 08 January 2013, 13:56 »
Found a custom exhaust place they will make me a 3" inlet down to a flanged fitting weld flanges to my oem cat that way i can easily fit cat in for mot. Then he will make a flanged decat pipe to fit inbetween. This will make for easy mot issues and give me a proper 3" to a 2.75" drop save on odd joiners and having trouble with mots. Fitted 250 quid
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2001 mk4 GTI 1.8t AUM. k&n induction kit with customer heat shield, 3'' TIP, Forge 007P, Stage 1 map, N249 bypass, 3'' downpipe and decat, 2.75'' Jetex cat back non res, Koni shockers and H&R springs 35mm, dimpled and grooved disks front and back
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