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Sad to see her go :( Glad to move her friend in though....

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Old 05-10-2001, 08:07 PM
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Default Sad to see her go :( Glad to move her friend in though....

The past week I have been living the best of both worlds. I was forced to decide in the mornings which car to take, 98 M3 or the new S4. I have noticed considerable differences in the suspension and steering department. Namely the S4 feels like a bath tub on wheels. But the feel of a turbo is so much more appealing to me. Now it seems that the modification process will focus in on the new 4door.

I was wondering as far as downpipes go, who all makes them? I know of MTM, APR, anyone else? Also, do they offer them seperate? or only in a high flow cat/test pipe combo. Thanks in advance. And yes, I do need the proper software to run it along with exhaust, etc.
Old 05-10-2001, 08:09 PM
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BUZZZZ wrong.. You don't need "proper" software to add DP's and or exhaust.
Old 05-10-2001, 08:43 PM
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Default BUZZZZ wrong.. depends on the DP's, some come without the fittment for the secondary O2 sensors

but you can get MORE from a re-calibrated chip

that takes advantage of the better flow and spool

and for what these guys charge for the Hardware

*I* WOULD get the SW
Old 05-10-2001, 08:50 PM
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Default Okay, yes the second 02 (but I wouldn't buy it if it didn't have the fitment)..

Yes you are also right that the software will bring more out of the mod, but it's not a "MUST" in order to DP or exhaust!

Also no one has done any dyno work with a car with DP's and exhaust only, to see what the results are (maybe it gives someone enough of a increase).. If not then yes they need a $5.00 eprom with some lines of code for $500-$700 dollars (what a racket!)

Tory
Old 05-10-2001, 08:54 PM
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Default well neither would I

but I know from empirical "studies"

that just adding Downpipes makes a

Significant Difference

to stage 1 Ecu's
Old 05-10-2001, 09:20 PM
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Default There is a dyno number at Max Speed/June - Comes out to 348HP 390ft-lb

if you take the base line at 250/258. No graph though, which is more important to me than max numbers
Old 05-10-2001, 09:24 PM
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Default AWE is going to have some in a couple months - 2.5" modular design

MTM and APR do not offer only the downpipes - I do not think that anybody ever will
Old 05-11-2001, 02:19 AM
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Default heres a dyno run of stock ecu/downpipes/exhaust/Sflo

<center><img src="http://pictureposter.audiworld.com/2711/stockecudownpipes.jpg"></center><p>282hp---317lb/ft that is at the meager stock boost level..
Old 05-11-2001, 02:23 AM
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Default add a custom tuned chip(GIAC1.2 bar) and get 358hp-421lb/ft

<center><img src="http://pictureposter.audiworld.com/2711/modified_dyno.jpg"></center><p>
Old 05-11-2001, 02:38 AM
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Default heres a completely stock dyno run! 259hp-289lb/ft

<center><img src="http://pictureposter.audiworld.com/2711/stock_dyno.jpg"></center><p>


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