What Catalytic Converter?

[bbenny]

Hi Guys,

Just curious as to what cat people would recommend for my Kakimoto cat back exhaust on an M35?

After a quick browse I noticed a lot of the high flow metal cats come in 3 or 3.5" Considering my exhaust is actually 3.15" should I be going for the 3.5 so I dont create a bottle neck? or will that be a completely different flange size?

I will be getting dump and front pipe done at the same time.

Cheers,

Ben.

[scotty nm35]

3 inch should be fine, aren't the flanges 3 inch anyway?

Its only 1.5mm per side bigger, just sand the lip down to make it a smooth entry. You could also cut the cat back a bit to match the size.

The 3.5 inch cats are the same as 3 inch ones internally.

[Jetwreck]

What's a cat....only good cat is a dead cat

[Bis-e Bee]

What's a cat....only good cat is a dead cat

.....someone not getting any pussy?

[iamhe77]

Hi Guys,

Just curious as to what cat people would recommend for my Kakimoto cat back exhaust on an M35?

After a quick browse I noticed a lot of the high flow metal cats come in 3 or 3.5" Considering my exhaust is actually 3.15" should I be going for the 3.5 so I dont create a bottle neck? or will that be a completely different flange size?

I will be getting dump and front pipe done at the same time.

Cheers,

Ben.

Have you thought about the Kakimoto front pipe? Is 80mm (3.15") and would match up with your Kaki cat-back nicely

I have one on mine

What's a cat....only good cat is a dead cat

[scotty nm35]

I have no emissions and I still run a cat you pussies.