[Turbo Keith B]

I have an Astra Mk5 888 (no100) and i have an Scorpion front de-cat and cat back to fit. I was thinking if taking the main cat out aswell but don't know if it will be worth it of not?Will it help performance and torque? Also will it make the smoke more when on full chat?

 

[Tech1889]

My car has scorpion decat and cat back but my main cat has been removed and my car roars i get compliments all the time

 

[wriggley_888]

Is there a sound clip of this I'm intrigued also thinking about a full system

 

[sam]

I have a decat cat back and that sounds pretty good

Mongoose btw

 

[wriggley_888]

Do you get the chatter through the exhaust with these really don't want that its just wrong on dervs

 

[sam]

mine sounds like i have an owl following me when i change gear lol

 

[Ben p]

I'm currently in the same predicament, surprised there's no right and wrong answer as to what set up produces the most power when it comes to exhausts.

 

[Nello]

I'm going to "broom handle" mine at the weekend.

 

[hicks_22]

Just be careful if you remove all the back pressure your car might be jerky.

 

[Nello]

Diesels are different to petrols bud

 

[Ben p]

I'm going to "broom handle" mine at the weekend.

??? Getting too complicated this exhaust malarky! lol.

 

[hicks_22]

Diesels are different to petrols bud

Oh sorry thought we were talking about petrol.
Yeah with petrols you can't just have a clear pipe there needs to be something to create a bit of back pressure

 

[Tech1889]

Hardly any turbo chatter from mine.. I personally think turbo chatter on any car is awesome my starlet was epic

 

[Turbo Keith B]

Well i have the scoripian front de-cat pipe and cat back sitting at home now . Will be fitting it in a couple of week's but still unsure about the main cat?
Just leave it or take it out?