RS4 B7 to RS6 C5

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
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STURS4
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RS4 B7 to RS6 C5

Post by STURS4 » Thu Jun 13, 2013 12:52 am

hi guys,

Im thinking about changing my RS4 B7 for a RS6 C5.Im looking at a 2004 model tomorrow.Is there any problems to look out for?Also what kind of MPG are people managing?would it be much different to the RS4.

cheers

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STURS4
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Re: RS4 B7 to RS6 C5

Post by STURS4 » Thu Jun 13, 2013 1:21 am

just found and read the buyers guide.Very informative,few similar issues to the RS4 to look out for

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mavada
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Re: RS4 B7 to RS6 C5

Post by mavada » Thu Jun 13, 2013 6:50 am

...youre missing the turbos?
If you can't go to the track, bring the track to you.
Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
Yellow Koni's
Porsche 959, gone but not forgotten.
Fight ALS disease https://www.youtube.com/watch?v=wGFDWTC8B8g

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Mr Footlong
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Re: RS4 B7 to RS6 C5

Post by Mr Footlong » Thu Jun 13, 2013 7:46 am

Save your pennies and supercharge the 4 instead!
Current:

23' C8 RS6 Vorsprung - 23' RS E-Tron GT Carbon Vorsprung

Gone:

"Brutus"- C5 RS6 Avant - MRC stage 2 - Milltek non-res + 100 cell cats - Wagner ICs - PSS9 - H&R ARBs - OZ Superturismo LM - C6 Custom brakes - HD RNS-E - Various other bits - 555PS/832Nm
"Taz"- C7 RS6 - MRC stage 2 745PS/1095Nm
12' Cayenne Turbo, B7 RS4, S3, Cupra R, XJR, EVO VII, STI8,5,2&WRX, 106 GTI&XSI, other crap.

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JCviggen
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Re: RS4 B7 to RS6 C5

Post by JCviggen » Thu Jun 13, 2013 7:48 am

Funny, I'd go the other way in a heartbeat lol...

For a C5 in particular I'd try to get one with a known history here on the forums. That or get someone who knows these cars in and out to look at your prospect(s).
B7 RS4 saloon Misano red, comfy seats, JHM tune & JHM full exhaust with cats and resonators - gone.
C5 RS6 Avant Daytona/Cognac - gone.
981 Cayman GTS Gray/Orange.
My youtube

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mavada
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Re: RS4 B7 to RS6 C5

Post by mavada » Thu Jun 13, 2013 7:56 am

Mr Footlong wrote:Save your pennies and supercharge the 4 instead!
http://www.youtube.com/watch?v=O8k7EPHlCXs
If you can't go to the track, bring the track to you.
Mugello Blue C5 RS6 Avant
Viper Tuning ECU/TCU
MTM Bimoto wheels 9,5 x 19 ET 30 LK 5x112 with 275/30/19 tyres
MTM exhaust system cat back 4-pipe with throttle valves in 2 pipes, control
Yellow Koni's
Porsche 959, gone but not forgotten.
Fight ALS disease https://www.youtube.com/watch?v=wGFDWTC8B8g

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Shoppinit
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Re: RS4 B7 to RS6 C5

Post by Shoppinit » Thu Jun 13, 2013 8:12 am

The RS6 is much bigger inside than the RS4. A standard RS6 will be about as quick as an RS4 that's making its power, but the RS6 will feel quicker because of the turbos.

The RS4 is a bit better on fuel because of the direct injection. Probably 22mpg (real not DIS) is about as good as you will get with an RS6. Be wary of people claiming 30mpg. Probably not that different from the RS4.

I wrote a short comparative on the RS6 / RS4. I'll try and find it.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Shoppinit
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Re: RS4 B7 to RS6 C5

Post by Shoppinit » Thu Jun 13, 2013 8:18 am

Bear in mind that the RS4 in question dyno'd at almost 400hp so was quicker than most.

http://forum.rs246.com/viewtopic.php?f= ... 5&start=65
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

gingertoss
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Re: RS4 B7 to RS6 C5

Post by gingertoss » Thu Jun 13, 2013 9:38 am

RS6 bang for buck tunning potential much better.
2003 RS6 Avant, non res Miltek, 3" catless dps, wagners, MRC air filters, 044 fuel pump, MRC custom remap, TCU remap, 566ps, 812nm, pss9 coilovers, hotchkis rollbars, Recaro CSs, 390mm front discs, hi-spec 4 pot rear calipers.

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mik15
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Re: RS4 B7 to RS6 C5

Post by mik15 » Thu Jun 13, 2013 9:38 am

very nice write-up on the comparison, i was actually curious how the results would be like if you put head to head these 2 cars, as i was at some point looking for an RS4 as well, considering these, unless you want only more space, i'd make the jump from RS4 straight to C6 RS6, it would be a win/win situation, you get a lot more power and bigger and fancier interior than you would in the C5 RS6...
2004 RS6 by ABT, madly in love with it, RNS-E, ST coilovers, new TC, 19x9x29 RS4 B7 wheels, non-resonated Milltek w/blk tips, TBC....SOLD - but never to be forgotten!
2004 RS6 ebony schwarz, SE exhaust, 19'' rims - SOLD
'09 RS6 C6 - the great white - now, this means business!

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mik15
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Re: RS4 B7 to RS6 C5

Post by mik15 » Thu Jun 13, 2013 9:39 am

gingertoss wrote:RS6 bang for buck tunning potential much better.
true, but it comes with a high price!
2004 RS6 by ABT, madly in love with it, RNS-E, ST coilovers, new TC, 19x9x29 RS4 B7 wheels, non-resonated Milltek w/blk tips, TBC....SOLD - but never to be forgotten!
2004 RS6 ebony schwarz, SE exhaust, 19'' rims - SOLD
'09 RS6 C6 - the great white - now, this means business!

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STURS4
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Re: RS4 B7 to RS6 C5

Post by STURS4 » Thu Jun 13, 2013 10:10 am

Thanks for the replies guys.I would love to keep the 4 and charge it along with big wheels and slammed to the floor etc but work is thin on the ground at the minute and the change to a older cheaper to buy car would give me that little bit more back a month but still keeping my passion for big fast audi's alive.Unless everyone wants there cars giving full correction,detail and protection then il will keep the RS4 :lol:

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Shoppinit
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Re: RS4 B7 to RS6 C5

Post by Shoppinit » Thu Jun 13, 2013 10:25 am

Not sure that going from an RS6 to an RS4 is going to give you a saving. Realistically, probably the opposite. Maybe you should consider something like an M3 e46 or a Focus ST.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Mr Footlong
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Re: RS4 B7 to RS6 C5

Post by Mr Footlong » Thu Jun 13, 2013 10:52 am

STURS4 wrote:Unless everyone wants there cars giving full correction,detail and protection then il will keep the RS4 :lol:
Where are you, do you have a website etc and how booked up are you? Rough prices are nice as well. My good friend/detailer god is booked up for the next few months and I have at least 1 car than could do with some love.
Current:

23' C8 RS6 Vorsprung - 23' RS E-Tron GT Carbon Vorsprung

Gone:

"Brutus"- C5 RS6 Avant - MRC stage 2 - Milltek non-res + 100 cell cats - Wagner ICs - PSS9 - H&R ARBs - OZ Superturismo LM - C6 Custom brakes - HD RNS-E - Various other bits - 555PS/832Nm
"Taz"- C7 RS6 - MRC stage 2 745PS/1095Nm
12' Cayenne Turbo, B7 RS4, S3, Cupra R, XJR, EVO VII, STI8,5,2&WRX, 106 GTI&XSI, other crap.

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Re: RS4 B7 to RS6 C5

Post by Maximo » Thu Jun 13, 2013 12:11 pm

Mr Footlong wrote:
STURS4 wrote:Unless everyone wants there cars giving full correction,detail and protection then il will keep the RS4 :lol:
Where are you, do you have a website etc and how booked up are you? Rough prices are nice as well. My good friend/detailer god is booked up for the next few months and I have at least 1 car than could do with some love.
+1 I was about to ask the same.
R18 GTX Estate > Saphire 2.0i Ghia > R19 16v > Vectra V6 SRi > M3 > RS6 Avant

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