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2003 A4 1.8t Quattro Exhaust Systems

  #1  
Old 03-17-2004, 05:49 AM
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Default 2003 A4 1.8t Quattro Exhaust Systems



Hey, wassup people. It's been a while since I posted anything on here, but here goes. I was wondering about an exhaust system for my car, an '03 A4 1.8t Quattro. I know there's quite a few out there for this car, but I can't decide on what's the best. I was looking at APR since I went with the APR chip and what not. I know the APR exhaust system for my car should bump up the power, and I'm told it's really, really quiet. Which is good, but I still wouldn't mind hearing the exhaust when I start driving aggressively, you know? </P>


Does anyone know if you can hear it at all, or if it just sounds stock? If anything, is the performance gain on this system any more than other systems out there? I heard that the Neuspeed system is a little louder, but it gets a bit raspy. I don't want a raspy sound and a continuous drone that fills the cabin, but I also don't want it to be really, really quiet. I was looking at about a $1000 price range, as most of the systems for my car are within that area. Thanks for your help.</P>


Changing the subject a bit, I put on the H&amp;R sport springs and Bilstein Sport shocks. It is a perfect drop for me since it doesn't catch the wrong attention but still looks a little lower than the sport package suspension. The ride is great too. </P>


Another thing that I put on since the last time I was on here, is the Unorthodox Racing Aluminum Lightweight Flywheel. I had it installed with the factory clutch and will run it like that until I need a new clutch. The acceleration feels much better and the revs actually come back down when I blip the throttle, unlike the heavy *** factory dual-mass flywheel. Starting off from a stop going up-hill provides more bogging, but not much. Also, when going up-hill, I notice I need to keep the revs up a little more than before, since I don't have that inertia of the stock flywheel, but the trade-off for the full blast acceleration is worth it to me. The only complaint I have is this groaning, resonance-like sound that comes from the transmission area when the car is bogged at around 1900-2200 RPM. It's kinda loud. When I called Unorthodox Racing and asked them about it, they said that the material on the flywheel needs to break in and the intensity of the sound should slowly disappear the more I drive the car. The sound has gotten softer since I first had the flywheel installed.</P>


Other than that, no other new stuff, until I put on a good exhaust system that you guys can help me out with. Sorry to make this thread long, but I figured this info would help anyone else who was thinking of doing similar modifications on their A4. So anyway, thanks for reading, and hope to hear an answer about the exhaust systems.</P>
 
  #2  
Old 03-17-2004, 04:11 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems

hey man thats a good little write up - I have been considering the Bilstein/H&R combo or the Koni C/O's. The coilovers are like $300 more, so I think I'll just go with what you have. Lots of people like that combo.

As for an exhaust. Borla seems to be a favorite of many. Its not overly loud, has a deep throaty sound. The Neuspeed system does get kind of raspy and loud - I've heard that system.

cheers
 
  #3  
Old 03-18-2004, 10:04 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems



Thanks for the response. I haven't seen any companies who have borla systems for the 8E, but I'll check a little more. I also noticed that most of the systems out there are all 2.5 inch systems from the downpipe to the center muffler, then spilt into 2 2.25 inch pipes to the 2 rear mufflers. I wish someone would make a 3 inch system from the downpipe to the center muffler and then maybe split to 2 2.5 inch pipes to the 2 rear mufflers. I know from experience from my previous car that was turbo'd, that bigger is always better (for turbo cars). </P>


Oh yeah, I also checked the B&amp;B website, which was posted in the SEMA article from the February or March issue of Eurotuner magazine. It's cool, because they have little video clips of a whole range of cars with their exhaust products on, so you can get an idea of what it would sound like. They didn't have an A4, but they did have a TT. Since it's the same motor, I figured it would sound the same as that sample. I have to say it sounds damn good. But it might be a bit loud.</P>


As for the suspension, yeah, I was originally going to get either the H&amp;R Coilovers or the H&amp;R Cup kit, which is a little cheaper and includes adjustable perches. But I didn't think I would be getting too serious with track style handling, since I'd only go every now and then. That's why I went with the Bilstein/H&amp;R combo. I actually got it from AWE Tuning. They have a pretty good price, if you want to pick up some for yourself. www.awetuning.com is their website.</P>
 
  #4  
Old 03-19-2004, 05:20 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems

yeah, bigger is better for turbo to reduce back pressure.
I have seen video of a Borla on the B6. It sounded kick ***. The latest Borla doesn't go down to 2.25 anymore - it stays 2.5" (on the B5 model anyway - we only have one muffler).

AWE is a great site - I have been there many times. Its down to AWE or PureMS where I will be buying next month.
 
  #5  
Old 03-19-2004, 08:42 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems



Cool! Good luck. Oh yeah, I checked another website www.stratmosphere.com. It had a sample of the Miltek Exhaust for the B6, but the sound was recorded from inside the car. It actually sounded pretty good. I called them up a little while ago and asked how it sounded. I talked to a sales rep named Mark. He told me it wasn't really loud, but had a nice deep sound. I asked him if it would sound about like the APR exhaust, and he told me the volume is about the same, but he thinks the Miltek has a better tone to it. </P>


The only problem with it, is they are in NY and shipping is $225 for me. The exhaust system costs $1049.95. I checked the photo of how the system looks. It's nice. Then I went back on the APR website and compared the photo of their system to the photo of the Miltek. I noticed that even though the Miltek and the APR are both madrel bends, the Miltek has sharper corners in the system, where the APR system has less angle in their bends. It's not much, but I know that the less angle or bends in the system, the better as well. So that would be more points to the APR system. Also, the APR system has a flex section, where as the Miltek doesn't. Check 'um out. And was there a web site that had that video of the Borla system? Or was it in an actual DVD or VHS video? Let me know. </P>


If I ever actually stop spending money on parts, I'll buy a Digital camera and take some pics of the car for you to see the drop and stuff. Take it easy.</P>
 
  #6  
Old 03-20-2004, 04:27 AM
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Default 2003 A4 1.8t Quattro Exhaust Systems



<FONT face="Arial, Helvetica, sans-serif" color=limegreen size=3>"If I ever actually stop spending money on parts, I'll buy a Digital camera and take some pics of the car for you to see the drop and stuff."</FONT></P>


Haha yeah I hear that man yeah its really an addiction I guess, but Id say its better than coke er gambling at least we have somthing to show for it....<IMG src=smileys/smiley2.gif border="0"></P>
 
  #7  
Old 03-20-2004, 04:59 AM
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Default 2003 A4 1.8t Quattro Exhaust Systems

man, I hear ya... I don;t have any money anymore because its so damned fun to go online and say "I'm going to buy that for my car, dammit!"

On another note - my carputer is finally bugfree and running perfectly.and crap, the new system is so freaking loud! In 2 weeks I will have the gps nav up and running.

god I love technology... <edited><editID>brrman</editID><editDate>38066.0837384259</editDate></edited>
 
  #8  
Old 03-22-2004, 06:46 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems



Cool! I had another question that was bothering me. When I do a wide open throttle and accelerate, I notice how the power curve is. I mean, I can feel little dips and spikes in it when I pound it, as if the power curve was not smooth. I even hooked up a new G-Tech Pro and tried to measure the horsepower and stuff, but didn't really have anywhere to really open it up much. The track had an event going on, so I couldn't test it there, but the small readings that I did get with the graph showing the power curve through the gears looked pretty rough too. I know in the case of the G-Tech Pro, the smoothness of the road has an affect onhowsmooth the graph lookstoo. I use 92 octane gas from 76, as Audi recommended either Shell or 76, because they don't have all kinds of additives in their gas.</P>


I'm just wondering if it could be that with the extra boost that the APR chip gives, I need a stronger spark. I know that fuel is not a problem with only the Stage 1. Or is it? I think that I heard somewhere thatif the power curve is kind of rough, it shows that you need a more powerful spark in the ignition. But the 1.8T already has a direct ignition, which is supposed to be strong. Are there any aftermarket ignition systems that can better the stock 1.8T ignition, or something that can amplify what it already has? Let me know if you heard of any of this, okay? Thanks.</P>
 
  #9  
Old 03-22-2004, 08:11 PM
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Default 2003 A4 1.8t Quattro Exhaust Systems

Have you changed your diverter valve (aka BPV - Bypass valve)? It's rubber and usually turns to s**t a few weeks after chipping, and you will get funny dips and spikes in boost when changing gears so that the boost might not be fully retained. Could also be a dirty MAF which is not allowing a smooth acceleration. Could also be a dirty throttle body or bad/fouled plugs. Check your air filter also.

cheers

 
  #10  
Old 03-23-2004, 01:01 AM
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Default 2003 A4 1.8t Quattro Exhaust Systems

there is a company I read about in SportCompact car mag that makes aftermarket coilpacks suposedly twice the initial spark and four times the secondary spark ...Ill see if i can find the mag for more details
 

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