Biger downpipe

[Majorcina]

I tried to find similar threat which would answer on my question,but no luck...
So here we go

Since i cant get full 3' exhaust on my urs4(in my country) i was wondering what would happen if i put biger downpipe and keep the rest of the exhaust stock(cats removed,pipes are 2.25'i think)how the car would behave?
I toth to keep the biger downpipe same shape like stock,Y section.
Since we dont have 76mm pipes i would probably go on 70mm or 80mm(i belive 80 is bether)
U guys here have a lot of experience abouth this so i hope some of you might help me out?
Some info abouth the car so u have a bether view of this:
-upgraded coils
-prj stage 1+ chips
-fmic(still not instaled but its on his way)

[UrS4boy]

If you can't change the downpipe back system, then don't bother worrying about trying to improve the OE design.

My AAN is completely RS2'd and is running MRC Stage 3 software making 350 to 360 crank hp with a stock exhaust system, all with no problems. The stock UrS system isn't restrictive until well over 400 hp.

Save your money. Polish the twin stainless steel tips of the rear box outlet and be happy.

[rynaqui]

As above, I was using stock system with my RS2 setup for a while with no problems. A 3" downpipe with the stock Y setup will get you nowhere. Just keep it standard for now until you find a decent exhaust shop

[GazzaG60]

i think there is somthing to be had from a 3" down pipe to a 2.75 system.

get the best from you can from out of the turbo.

[Majorcina]

Thank's guys,then i belive bether investment is to get rs2 ex manufold(or replica)

[UrS4boy]

OE 3B, AAN, ABY and ADU Exhaust Components

Thank's guys,then i belive bether investment is to get rs2 ex manufold(or replica)

Sorry I thought that you already had an RS2 or equivalent exhaust manifold (EM). No use "improving" the exhaust system after the EM if you don't have an ungraded exhaust manifold to start with.

OE 3B, AAN, ABY and ADU Exhaust Components

http://forums.quattroworld.com/s4s6/msgs/196904.phtml

[GazzaG60]

save some money up and invest in a balanced exhaust setup

manifold and downpipe.

[Majorcina]

No Dave i dont But will try to get some.Abouth geting a proper exhaust,well thats kinda hard since shipping is uber expensive and in my country noone can make it