WHAT IS A UPPIPE FOR STI

[gordyN01]

HI WAS WONDERING IF ANYONE CAN ANSWER THIS JUST GOT A EXHAUST FOR WR1 FULL DECAT H&S WAS WONDERING WHAT IS A UP PIPE AND ARE THEY WORTH GETTING?

[imprezapete]

If I remember correctly the up pipe runs from the Manifold to the turbo.

Some impreza's have a crap up pipe and some have a Cat in them as well.

I dont know about the WR1 m8, but a few models/years have 3 Cats and 1 is in that pipe.

[jamie_wood]

Hi there matey

The up pipe is the section from the headers to the turbo.

Most folk change the up pipe AND the headers at the same time to improve torque figures. Having never changed the pipe on its own I wouldnt like to quote figures on it.

Its also a wee bit of a job to change it as the down pipe and headers need to come off.

If your going to be de cating the wr1 then I take it your re mapping it at the same time also?

[gordyN01]

YEAH ANDY F I WANT TO DO REMAP

[jamie_wood]

If your looking for good torque figures, then fit a set if you can afford them

Your only looking at another hour to fit them.

Just put a set on a customers wrx this week and they are a good wee boost

Just remember to get new studs and a couple of rolls of heat wrap

[imprezapete]

Heat wrapping them is the fun bit

[gordyN01]

I WANT TO KEEP FLAT FOUR BURBLE SO I WILL KEEP HEADERS ON IS THERE 2 UPPIPES?

[jamie_wood]

Theres only one up pipe.

I might have one at the workshop from my car before i changed to semis.

If your interested I could double check?

It has all the studs too, so it would save you buying them.

Just an offer, its up too you

[gordyN01]

NICE ONE WILL BE DOING IT SOON PM ME WHAT U WANT FOR IT ALSO WHEN I DECAT I WILL HAVE ENGINE LIGHT ON WILL REMAP SOLVE THIS?

[fai17]

<< NICE ONE WILL BE DOING IT SOON PM ME WHAT U WANT FOR IT ALSO WHEN I DECAT I WILL HAVE ENGINE LIGHT ON WILL REMAP SOLVE THIS? >>

a remap will sort it.The light is usually caused by A/F probe in the exhaust because its running too rich.but don,t worry about it thou.