To DECAT or NOT to DECAT?

[jwfcms]

If i replace my exhaust system cat back i would also be looking at replacing the cat, but £500 for a cat alone is a bit much, on most other cars they have a straight through system with a decat pipe.

I know they do a decat pipe for a cupra r but has anybody got one ?
If you have or know any info on them, does it give you any gain? does it affect the turbo or does it need the back pressure from the cat to work?

Is there anyway around the engine management light, or is this going to make it run like a bag of spanners because it thinks there is a problem with the car?

What would you recomened?

 

[Faisal]

I opted for the 100 cell high flow sports cat as it is the most free flowing cat you can get,and you will still pass MOT emission tests. i would personally recommend that over a decat as you would end up either failing the MOT,or having to constantly switch the cats before each MOT.

you do get a bit of a gain from it,around 5-10 bhp odd, but remapped to suit it,it will make a good difference as well as a deeper sound.

the ko4 turbo creates its own back pressure so this will not affect it,even so, the only thing that would affect back pressure would be an exhaust system the same size as the downpipe i.e. 3" system with 3" downpipe. as long as the downpipe is larger than the system,its fine.

as for the engine management light, all you need to do is get the garage to shroud the sensor - which fools the engine management system into thinking that the cat is there and fine

the standard LCR cat is worth like £120 due to the platinum and stuff so i say either get a discount,or ask to keep the cat so you can sell it for a few bob yourself.

hope this helps

 

[jwfcms]

what do you mean get the garage to shroud the sensor? BUMP also to this thread, any more opinions please???

 

[CupraMVR]

DECAT all day long. i want a summer in the UK this year

 

[ArosaRacer]

ive one on my LCR and the only problem i have is Engine light on when i sit in traffic during summer. This im told is due to heat build up

 

[johnboii225]

Go for the decat mate, I've got a THS decat for an S3/TT modified to fit my LCR and coupled with an aftermarket exhaust it sounds the nuts!!
It gives a really meaty roar and an EXTREMELY loud backfire from first to second and second to third.

As for the emmisions light, u can buy a tool to reset the light on fleabay for £17+p&p
and come MOT time, either find yourself a "friendly" tester or just change back to standard, only takes 20mins and only has to be done once a year. Easy

 

[CupraMVR]

ive had mine decat warming light mapped out so it never comes on now happy days.

 

[jwfcms]

how did you modifiy the ths one to fit? as it says 225 tt and s3. i dont see why it wouldnt fit the lcr? what had to be modified? thanks

 

[ArosaRacer]

mine is a Magnex one and mine is mapped out too

 

[Lodgey180]

got the magnex one on mine with a standard exhaust .. when letting off at about 2.5 - 3k it sounds really deep and pops when coming to lights in second.
got the eml light on mine but it dont bother me

 

[kineticz]

Mine's decatted and will be mapped out soon As said MOT is only once a year and mines not until Sept so it doesn't bother me. Plus I know a friendly tester

 

[jwfcms]

bump on anybody modified the ths s3 tt decat to fit a lcr or anybody know anything about it ?

 

[paul-murphys]

i want to do this to, where an how do you modify the decat an can you blank out the sensor with vagcom?

 

[amccan10]

Personally I think you'd be better with a 100 cel cat as opposed to a decat.

However if your convinced that the decat is a must have a look at the piper thread:

http://www.seatcupra.net/forums/showthread.php?t=142042

they offer the decat as an option to their downpipe

 

[paul-murphys]

http://www.thsperformance.co.uk/acatalog/Turbo_Elbows_abd_Downpipes.html

how would you mod it? whats the difference beetween lcr an they tt one?

 

[RickC]

anyone de catted their blueflame system?

 

[mat564]

http://www.thsperformance.co.uk/acatalog/Turbo_Elbows_abd_Downpipes.html

whats the difference beetween lcr an they tt one?

I think the difference is the c@*k that drives it i mean the tt
ithink but dont quote me that the floor pan is different on tt so hanging mounts are in different places also a little shorter

 

[Nev_LCR]

anyone de catted their blueflame system?

My turbo back with de cat will arrive this week mate.

 

[rickyjones1209]

i have blueflame turbo back with decat. excellent exhaust although havent got much to compare it to. sounds the nuts.

 

[RickC]

My turbo back with de cat will arrive this week mate.

i have blueflame turbo back with decat. excellent exhaust although havent got much to compare it to. sounds the nuts.

nice one is it a new one? what is done to the second lambda? just spaced out?

is it loud without the cat? (motorway)