Catalytic Convertor By-Pass Pipe

[Dundy2456]

Just curious as to whether anybody on here has (or knows of anyone who has) had experience buying/fitting/using a component like this?

http://www.mx5parts.co.uk/catalytic-con ... ml?stars=1

Would there be any foreseeable downsides (apart from emissions) to fitting this to a stock system? My goal is simply to replace a 25 year old cat with something more free flowing than OEM (not after sik powr gainz). Was considering a high-flow cat... but then I saw this

Cheers

[hks_kansei]

Power increase

2/3fuckall
That's a metric fuckall by the way.


It's just as easy to get a higher flowing cat, either a lower cell cat, or just a bigger one.

[Dundy2456]

So.. No downsides? getting a high flow cat is just as easy.. But I knew that before I posted

Sent from my GT-I9305 using Tapatalk

[hks_kansei]

Will make the car slightly louder (slightly)

May get some black sh*t on the rear bar from unburned fuel.

Potentially increase afterfire (ie: unburned fuel igniting in the exhaust)


I've got an 80cel cat on my NB and it's great fun making it pop and crackle

[project.r.racing]

just looks like a cat delete pipe. i'd expect lots more noise and exhasut flow. oh and noxious gases coming from your exhaust.

[Magpie]

Just be aware that both running without a cat or over a cat is illegal on the road in all states

[22Silver]

The fine for not having a cat is astronomical. A quick google shows numbers ranging from $1500 to $10,000 depending on state.