SportsCat or De-Cat, Which is better?

[stozzaz88]

i have a MK2 VTR and i am wanting a new manifold.
My cat is in the manifold so my options are either getting a mk 1 manifold without a cat or get a Janspeed SportsCat manifold.
i wanna no what differences in performance are between having a sports cat or none at all?
cheers

[Richie2104VTR]

Is basically the same performance mate, but a sports catted car will pass MOT etc... whereas a de-catted car would'nt.

[MaRiO89]

Is basically the same performance mate, but a sports catted car will pass MOT etc... whereas a de-catted car would'nt.

I have to disagree there abit..

De-cat will help power more, only abit though..As for passing MOT's, my old Saxo didnt and a friend of mine didnt pass emissions..both with sports CAT's..Both car's were very well looked after aswell..

Citroen dont put a specific CAT on the car for a laugh, they do it so it just scrapes through so maximum power is acheived within the Co2 regs etc..

[Richie2104VTR]

All depends on the car i suppose... I had a sports cat on mine and went straight threw the emmisions test. Then de-catted and felt exactly the same performance wise, but failed the emissions test.

[MaRiO89]

Fair enough..:P

[Pat_Vts]

decat bud

same outcome just cheaper:)

[stozzaz88]

cheers didnt expect some repsonse so fast!
if i was to go the decat route what are the best manifolds for them will spend upto around £200

[Richie2104VTR]

GMC or a supersprint, both are a bit over £200 but are definitely worth it imo.

[Pat_Vts]

raceland is just as good as supersprint

read my thread about the raceland vs supersprint, raceland is £94 if your a saxp member

(http://www.saxperience.com/forum/showthread.php?t=160388)

[stozzaz88]

think am gonna go for the Supersprint as i want something that will last that little bit longer,
cheers everyone!

[paddy88]

yer defo go for the supersprint haha I think it will be alot better!

[Steve]

as said by richie, i drove his car both with and without.

No difference noticed bar the fuel econmy and sound

[MikeReay89]

Decat mate. IVe got piper on mine

[DavidKent]

Old thread, But i'm in the same situation.
Whats the difference over std Cat, or De-Cat?
Is there a real gain other than noise?
Also, would the car be less economical without a cat than it would with?

Apologies for Hi-Jacking!
David

[b0t13]

go with the decat route, its cheaper and only downside is putting it back on for mot, plus itll sound better,

i thought decatting a car made the fuel consumption worse but ive actually seen a few more miles from £10 since decating mine :D:D

[DavidKent]

go with the decat route, its cheaper and only downside is putting it back on for mot, plus itll sound better,

i thought decatting a car made the fuel consumption worse but ive actually seen a few more miles from £10 since decating mine :D:D

Just what i wanted to hear.
It won't go much better anyway i shouldn't think, its its only got 1 llambda before the cat anyway.

I'm averaging 345 to a tank, which works out at 40.4MPG or something, No Cat effectively is less restriction and less weight, how well that theory works is what i want to see..

Though i'm going from Raceland manifold, Cat, Std Centre Section and magnex backbox, to Raceland Manifold, De-Cat and Maxnex centre and backbox..

So will soon see!