Build my Civic for me - part 1, exhaust

[blacklineninja]

Ooooh, decisions... Which exhaust do you think I should get?

If anyone has any technical know-how on these, i'm wanting the best power-torque gain a cat-back system can offer me.

Also, if i fit a de-cat pipe (which is necessary to get the Buddy Club exhaust to fit), will my car then fail it's MoT?

 

[obi_waynne]

Cars with cats do need a a cat to pass the MOT test - the only way to stay legal is to go for a Sports cat which has a high flow lattice. I had one of these on my 220 GTi and although peak bhp was down a little compared with a decat the low down torque was much higher and made the car a better drive. The sports cat is usually a direct swap in replacement and would be my recommendation unless the car is for high revving track work where a decat would be better suited.