A question!!! RS2 vs S2 downpipe???

[topsparky]

don't forget yes in R in brumanese

[volcano rs]

Yes, the brum version is dunnow

thats ok i'm from lancashire

[volcano rs]

don't forget yes in R in brumanese

you've been to burma too?

[Audi-Porsche Avant RS2]

Hello, also RS2 downpipe and S2 ABY downpipe are different?
Thanks!
Alessio

[Big Lee M]

RS2 downpipe is a direct replacement for a S2 ABY downpipe, only difference is the RS2 downpipe is 2.75" dia and the S2 downpipe is 2.5" dia.

[Audi-Porsche Avant RS2]

So a RS2 downpipe on a S2 ABY with about RS2 original power is a good upgrade I think.
Alessio

[bernsaudi]

who says brummies dunnow? you can tell a brummie anything but you cant tell em much!

[Audi-Porsche Avant RS2]

Friends, which is for you best downpipe and exhaust system for a S2 Coupe ABY with about 315 hp?
Thanks!
Alessio

[Jamo]

who says brummies dunnow? you can tell a brummie anything but you cant tell em much!

The ignorance of confusing a black country accent with a birmingham accent.

Should I say you sound like someone from Newport cause your from wales?

[20Vcqdriver]

[DUMB QUESTION MODE]
If you have an RS2 EM, is there any point adding an RS2 downpipe if you intend to keep the OEM exhause system from the cats back?
[/DUMB QUESTION MODE]

Cheers n

Si

I'd say yes, Apparently the initial few feet at a larger bore makes a big difference to EGT etc. Been advised with mine that the 2.5" complete system I have is good for 300bhp without issues, change just the downpipe to 3" and that figure rises towards 380bhp. Not sure of the science behind it but pretty sure there are a few on here running this arrangement

[Audi-Porsche Avant RS2]

Sorry, probably is already write somewhere but I don't find it, which is the dimension of the original S2 Coupe ABY exhaust system? Downpipe is 2.5" right? and the rest of the exhaust?
Thanks!
Bye
Alessio

[david]

Sorry, probably is already write somewhere but I don't find it, which is the dimension of the original S2 Coupe ABY exhaust system? Downpipe is 2.5" right? and the rest of the exhaust?
Thanks!
Bye
Alessio

hole in one:hurray

[S2central.net]

S2 downpipe is 2.5" (<65mm) whereas RS2 item is 70mm (2.75")

[Audi-Porsche Avant RS2]

Yes Paul, I have understand this, but the rest of the original exhaust system for S2 ABY and RS2 ADU how much is?
Thanks!
Alessio

[S2central.net]

From what I see on parts system, the RS2 has different numbers for CATs, middle box and rear box but the dimensions of pipes are the same as S2 Avant by looking at the sizes of clips and seals. You can also see the intermediate pipes between CATs and middle box are same part on S2 and RS2 with 60mm pipe seal being used.

Perhaps of slight surprise is same size 55mm seal called up between S2/RS2 downpipe and each CAT - this is because of stupid Y-pipe topology...

I bought an RS2 downpipe which I intend to modify for a single exit, that goes into a straight section of 70mm stainless pipe that I have here, bypassing the CATs (legal where I live) and into a decent 70mm CATback system if I can find it. I will likely keep two boxes as it will be outrageously loud without CATs and single box at the rear.