Extractors VS Cat Back

[someonestolecc]

Hello,

I've been asking a lotta questions recently because I'm closer to getting my first liner. Gone through a french car, a big v8, a barina and to own my first turbz is a fun - so I'm thinking realistically of mods.

Everyone seems to have a cat back, or be selling a cat back, or buying a cat back.

My question is - Does this mean the standard extractors are that good, or is it just that a good set costs a helluva lot?

I'm wondering should I get the full length exhaust or if cat back is ok.

Thanks for all your responses guys this is definately a strong forum/club.

[NFS]

Well on a turbo car the turbo will be bolting upto a different exhuast manifold that allows a turbo to be bolted on, so the exhuast pipe will start from the back of the turbo then will go to a dump pipe and further on, this is why people sell cat back exhausts because they will get a bigger dump pipe from the turbo and a high flow cat then the rest is just a cat back exhaust! What you can do is get a after market exhuast manifold which will flow better but they are big bucks.

[Maxx]

go for turbo exhaust with high low cat.

IMO only change yr manifold when u go for bigger turbo which won't fit standard

[someonestolecc]

Ahh - I see.

Thanks for the explanation that makes perfect sense. So in theory if I'm chasing ..200-250kw and say a torquey skyline with not too many KW (I will be sticking with stock turbz for long time) then just get a more efficient dump pipe -=> high flow cat -=> cat back exhaust.

I get it - that's a great explanation and it's explained a great deal that I've been wondering about for a long time. Guess thats what happens when you own NA v8's and NA 1.3's hehe

Around what kw would you have to be making before the factory dump pipe became restrictive?

[Jimbo2000]

i think you'll get nowhere near that kw figure with the stock turbo mate

[someonestolecc]

lol - oops.

150-200 ?

[Jimbo2000]

easy