Exhaust decat diameters

[Paul W]

Hi guys,

Wondering if someone could shed some light on this for me, as obviously we all have different manifold collector sizes, b-pipes etc.

I have a Mugen 4-1 mani, standard cat then a Spoon b-pipe and Spoon N1.

The question I need answered is what size of decat should I be buying as im unsure of my what size the standard one is? Do I need 2.25" or 2.5" or different sizes at both ends?

Surely someone on here has had this setup before and can answer for me.

Thanks in advance

Paul

 

[Paul W]

Anybody?

 

[murphy2]

the same size as your oem cat.suppose

 

[iceman]

2.5" decat, got brand new 1 that will fit right on, adjustable

£30 + postage

 

[ek9cub]

Have a look on japshop they sell silenced decat's to fit Dc2/Ek9 they fit and work really well. A straight though decat might make the N1 too loud!

 

[egshane]

i use a 2.5 with my spoon system

 

[Paul W]

Thanks guys, 2.5" it is then!

 

[Paul W]

Will give you a PM now iceman