3.9 efi disco exhaust choices, what do you run?

DiscoPol · Mar 1, 2016

Well the disco looks like it needs a new exhaust as i have only 1 cat on the down pipes which really isnt a good choice :doh:
so to free up the gases what do you chaps run?

Im going for non cat downs, but then which box do i choose to delete (it would be rude to leave them both in there) centre or rear?

tell me what you have and why please.

Ta

Pol

Ipcress · Apr 6, 2016

DiscoPol said:
Well the disco looks like it needs a new exhaust as i have only 1 cat on the down pipes which really isnt a good choice :doh:
so to free up the gases what do you chaps run?

Im going for non cat downs, but then which box do i choose to delete (it would be rude to leave them both in there) centre or rear?

tell me what you have and why please.

Ta

Pol

I may have a slightly earlier Disco @ `94 but regardless, `delete` the end box rather than middle as the engine requires middle for back pressure..

cooltide · Apr 6, 2016

And bin the lambda sensors / change tune resistor
Wow op was a while ago

DiscoPol · Apr 6, 2016

The middle box is gone, runs well enough for now, it was a temp measure since I blew the Harris out the old mid box but haven't quite got round to replacing it yet.

I appreciate the back pressure thing but looking through the old box there wasn't anything in there that gave a baffling effect anyway and the straight pipe I popped in place was only a few mm wider anyway. I will do a proper system one day.

Ipcress · Apr 6, 2016

cooltide said:
And bin the lambda sensors / change tune resistor
Wow op was a while ago

I know, 12hrs is a long enough wait for me.... but I was just in the area so I thought ..

Ipcress · Apr 6, 2016

DiscoPol said:
The middle box is gone, runs well enough for now, it was a temp measure since I blew the Harris out the old mid box but haven't quite got round to replacing it yet.

I appreciate the back pressure thing but looking through the old box there wasn't anything in there that gave a baffling effect anyway and the straight pipe I popped in place was only a few mm wider anyway. I will do a proper system one day.

Nothing now surprises me with LRV8s, middle box gone and STILL runs okay eh..

I only wonder which other `vital` parts can be removed that make zero impact.

3.9 efi disco exhaust choices, what do you run?

DiscoPol

Well-Known Member

Ipcress

Member

cooltide

sheep fancier

DiscoPol

Well-Known Member

Ipcress

Member

Ipcress

Member

Similar threads