Front silencer removal

[Bad_Pritt]

That’s probably a sort of X-pipe. It improves the flow of exhaust gasses. It doesn’t reduce the flow or sound like a muffler.

 

[Davz]

I assume that when the centre cats are removed it would be best to replace with an X pipe to ensure a smooth flow of gases? Anyone done this and found that top end power is improved?

Has anyone done this using an H pipe? Has this improved sound and low down torque?

 

[Mr Whippy]

Pre-facelift were two secondary cats with that mixer box a bit further down, then a back box.

Facelift appear to have a front silencer in one unit (for cheapness I'd assume), so there is no reason you'd need a mixer there.

I think if you want power/performance you'd get two straight smooth pipes right to the OE back-box. At that point you can then tweak the back-box to make it louder etc (no power to find there I wouldn't imagine), or do stuff at the manifold end (sports cats away from the engine/manifolds)
Tinkering with the OE probably won't yield much power I'd bet.

 

[markprz86]

Hi,

See if this thread can be revived, as I'm looking at removing the front silencers too.

What price and what garages did people get theirs done at?

Thanks