downpipe and decat

[knight85]

Im going to finish off my exhaust system by getting a downpipe and decat...

i already have a milltek non-res cat back...and am looking at getting the milltek downpipe, however have heard problems with it causing the engine light to come on, i presume due to the cat being removed...any one had this problem?

Also will it provide any power gains, or will the car need to be mapped again?

Also is the noise a constant drone, or will i not notice much difference than what i have now with the cat-back?

Cheers for any help...

 

[Breezapom]

you will get a diffrence just from the downpipe alone.I cant say about the de cat as i have a sports cat but i cant see why it would bring a error up?

 

[knight85]

what sort of difference?

less lag? more noise?

im more worried about noise as it is my daily driver and worried it may be too loud

 

[knight85]

anyone else got an opinion on decatting? Gonna order it tomorrow i think...

hopefully its not to much of a drone...

 

[Hartosh1]

With your car being a diesel i dont think the noise level would be too loud and as for the warning light i know you need to get them mapped out on petrol versions but im not sure about diesels it may be the same! Thats the good thing about diesels is you can go decat and still pass an MOT with petrol you have the hassle of putting the cat back in so most people just end up with race cats

 

[knight85]

cheers,

yeah was hoping for bit of reassurance that the decat wont cause any errors?

hopefully it will be quite throaty but not to chav...drone

 

[Aimez]

Let us know what you go for and how it is. I will be doing the same but not yet as other plans first.

 

[knight85]

yeah need some advice on error codes and if they will happen with a decat...

 

[Scott-o]

dont think they do on the diesels matey, just the petrols. as you dont even need a cat on a diesel

 

[knight85]

dont think they do on the diesels matey, just the petrols. as you dont even need a cat on a diesel

cheers for that...

cant wait to lower my car now scott...your car was the inspiration i needed

 

[Ant FR]

it wil never be too loud as its diesle and they are quiet anyway, plus the Turbo acts as a silnecer anyway.

Let us know what its liek as thinking about getting mine done if i hang on to the car. Had a downpipe and sportscat on the last diesel and it sounded lovely.

 

[knight85]

it wil never be too loud as its diesle and they are quiet anyway, plus the Turbo acts as a silnecer anyway.

Let us know what its liek as thinking about getting mine done if i hang on to the car. Had a downpipe and sportscat on the last diesel and it sounded lovely.

will do...will order of awesome gti later this week i reckon.

 

[Aimez]

it wil never be too loud as its diesle and they are quiet anyway, plus the Turbo acts as a silnecer anyway.

Let us know what its liek as thinking about getting mine done if i hang on to the car. Had a downpipe and sportscat on the last diesel and it sounded lovely.

Which is the better option then or have you only had that setup? there was some thread on here about sports cat being illegal now or something.

 

[Ant FR]

i've only had one set up. but have been tempted by a 120d beemer so depends what the test drive is liek to whether i leave SEAT fold again, still not sure, but they do handle a lot better.

 

[lee_fr200]

i ordered the miltek downpipe and decat as well as non res and it doesnt do your head in, in fact there isnt much of a sound until about 2.5k and unless your booting it, it does have a nice whistle though!!!!!!

as for bringing on error codes mine hasnt as you dont need a cat on a diesel, get the decat on and enjoy mate,

 

[Aimez]

what other options are there with a diesel then? I was gonna just get the Milltek downpipe to go with my Milltek cat back didn't realise there were other options I know nothing about exhausts!