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Old 06-24-2000, 05:07 PM   #1
Mr. Jones
Scooby Newbie
Member#: 319
Join Date: Sep 1999
Location: Fort Collins, CO USA
1998 Audi A4 1.8T
Laser Red

Question Is there a complete list anywhere of the diffs between 98 and 99 RS's?

Here's the stuff I think I know - can you folks point me to anything else?

-DOHC engine v SOHC
-4 bolt bellhousing to tranny vs 8
-blas'e front foglights
-non-leather stitched wheel and shift knob(?)
-no white-faced gauges(?)
-no RS "checkered" style upholstery(?)
-gold v silver rims
-any suspension changes? somebody said the '99+'s ride differently
-more solid MAS setup (99's go kaput...)

and the 2000 RS's have a MAP setup, and the Ltd. Slip in the rear, otherwise the same, correct? Has anybody turboed/tuned these yet?
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Old 06-24-2000, 05:29 PM   #2

go to http://www.egr.unlv.edu/~simon/ and click on specifications for specs on the various model years.

I too would like some more info on turbocharging and supercharging MY00 Imprezas.


Old 06-24-2000, 05:38 PM   #3
Mr. Jones
Scooby Newbie
Member#: 319
Join Date: Sep 1999
Location: Fort Collins, CO USA
1998 Audi A4 1.8T
Laser Red

Thumbs up

Thanks for the reply - looks like I had just about all of it... Any other esoteric stuff that might not be common knowledge ya'll?
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Old 06-24-2000, 08:49 PM   #4
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Member#: 507
Join Date: Nov 1999
Chapter/Region: Tri-State
Location: Long Island, NY/ china
2005 Saab 9-2x Aero


don't forget...the o2 sensor is only on the front cat converter I think...but i'm not positive about all this stuff
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Old 06-25-2000, 05:42 AM   #5
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Member#: 525
Join Date: Nov 1999
Chapter/Region: Tri-State
Location: Drives a Ford Interceptor
<<98 2.5RS(RIP)>>
02, Cobb stg 2.5, FMIC


I could be wrong but I think the clutch pressure plate is diff for 99.
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Old 06-25-2000, 10:22 AM   #6
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Member#: 161
Join Date: Aug 1999
Chapter/Region: South East
Location: WNC
89 MR2 (Ice Blue)


I don't have ALL the differences listed but I do have a comparison chart for different year model 2.5RSs at my website under <strong>Info and FAQs</strong>.

Shane "Warp3" Warren
1999 Subaru Impreza 2.5RS
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Old 06-25-2000, 08:49 PM   #7
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Member#: 14
Join Date: Jun 1999

-MY98 has different headlamps than MY99-00
-MY98 has different windshield washer nozzles
-MY98 has a different muffler tip than MY99-00
-The atmospheric sensor is located elsewhere on MY98

I think that does it

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Old 06-26-2000, 09:26 AM   #8
R Diamond
Scooby Newbie
Member#: 58
Join Date: Jun 1999
Location: Alexandria, VA
04 STi (blue/gold)
98 2.5RS Turbo (sold)


No, there are more weird changes.

The MY98 has the EGR valve in a different position than the MY99. (Makes fitting the Minnam intercooler on a MY98 difficult).

MY98 and MY99 have a different master cylinder/brake booster setup. MY98 allows use of the single stage booster, while you need to change the master cylinder to put a single stage on a MY99.

Lots of clutch differences. Search for Joel Gat's post on the subject.

Someone has posted on the MList that somewhere in the MY99 production run, they changed the rear brakes. Dunno the accuracy of that, but maybe Dale Teague knows more.
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Old 06-26-2000, 09:37 AM   #9
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Member#: 252
Join Date: Sep 1999
Location: San Antonio, TX
2001 Arctic White
Camaro SS #1800


So J, does this mean the Ranger is dead, or are you just getting ready for it?
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Old 06-26-2000, 10:25 AM   #10
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Member#: 114
Join Date: Jul 1999
Chapter/Region: MWSOC
Location: Wichita, KS and Whoring, OT
'03 Evo, Rice White
'01 Erion CBR 929


I don't think anyone has yet mentioned that the shifter linkage royally sucks on the '98.
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Old 06-26-2000, 10:48 AM   #11
Mr. Jones
Scooby Newbie
Member#: 319
Join Date: Sep 1999
Location: Fort Collins, CO USA
1998 Audi A4 1.8T
Laser Red

Thumbs up

Just trying to educate myself as much as possible. Over the past year or so I've learned quite a bit about RS's, but I don't know as much about the GSX and the A4. I'm trying to find out as much as I can about the strengths *and* the faults of these three cars in the event that USAA smokes ol' blackie...

From the basic spirit of these posts, seems like owners of '98's are happy with 'em, but the 99's have some nice "refinements", at the cost of that damned stupid MAF, and who knows what to do with MAP - that seems like a step backwards to me. (as does a hot film MAF as opposed to hot-wire....)

I hope this turns into an open season on the A4 and GSX so I can pick up some knowledge...hehe
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