[Slowroll90]

whats this? exhaust part on a R18

there is a little pipe that goes between somewhere and below the cat
what is the purpose of this pipe, where is is going?
just curious

 

[nelsonr31]

Pics would help...I have no clue what you're tryin to describe.

 

[Zeuceone]

The one that goes from the headers to the back of the car.

 

[Slowroll90]

yes of course
i meant to put this on there
View attachment 9027

 

[nelsonr31]

Sorry can't help you out I have no idea what that is. You must not have an Si bcause I've never seen that on my car.

 

[nelsonr31]

Right...You have an EX. My BAD

 

[Slowroll90]

oh and this is a R18

 

[Whocares05050]

Emmisions purposes

 

[Slowroll90]

Emmisions purposes

any details

 

[dobiejoe]

sorry

 

[Firestrife]

If im guessing correctly that is the EGR valve.
Exhaust Gas Recirculation for emissions and to get better mileage.

 

[Zeuceone]

You are correct.

 

[portabuddy]

ahhh, actuly you get worse milage but disconecting it is a $6000 fine..., and i mean like 3-5MPG worse...


It recurculates your Exhause gas, HOT Gas back into your intake... how is that good????, the reason for this is to reburn the unburned fuel and particulats...

 

[pd0019]

It recurculates your Exhause gas, HOT Gas back into your intake... how is that good????, the reason for this is to reburn the unburned fuel and particulats...

:yeahthat: plus it also makes the r18 a sulev or whatever it is.

 

[ryanjacobson]

the egr helps keep combustion temperatures down when your at a steady cursing speed to help cut down on NOx aka oxides of nitrogen

 

[Slowroll90]

hmm good imput
i think its over my head though lol

 

[norcals finest]

it also lets you run reg gas with higher compression