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Intake/exhaust question[s]

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Old Oct 1, 2007 | 05:44 PM
  #11  
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Default RE: Intake/exhaust question[s]

In terms of performance gains, what does upgrading the DV do as opposed to the chip?
 
Old Oct 1, 2007 | 05:44 PM
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ORIGINAL: acetrebo

If you do anything more than a drop in K&N panel filter, your wasting your time and money. That is all you need for the Stock Turbo
A lot of people custom a cold air intake, so they can hear more noise. Then they crank up the stereo and cant f*ckin hear it anyway. Its a waste of time IMO, and usually results in a slight loss of low end torque.

You'r on the money with the exhaust, borla and miltek are other popular cat-back systems. All 3 are pretty similar in performance.

You'll get 10x the performance from chipping your car (GIAC, APR,) than you will by what you are doing. about 40hp and 60torque roughly.

So, the order should be..... Chip and DV first (see the sticky threads at the top), then an intake, and exhaust.
Thanks. I was checking out GIAC just a second ago; I think I'll go with the APR chip. There's an authorized dealer that's pretty damn close to my house, so I could have it installed there. But I do have a question for you; why would you get an intake first as opposed to the exhaust? Just for clarification, I don't want an exhaust so I can make my car sound loud, I want proper airflow, and I just can't get that from the stock.

 
Old Oct 1, 2007 | 05:52 PM
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Default RE: Intake/exhaust question[s]

I kind of meant do the intake and exhaust at the same time, not really an order there. It doesnt matter which one you do first, they both will be an improvement.
I was talking about the cold air intake making the noise from the diverter valve louder. (not the exhaust) Thats the reason a lot of ricer wanna-bees do it, becausae it makes the DV noise louder. But, performance wise its a downgrade unless you have a big turbo. If you have a BT, you need the larger flow. For the stock turbo, the stock airbox with a k&N panel filter does an excellent job, in fact better than a cone-type filter. It stays cooler and has plenty of flow.

So, no order, just do them both eventually. I would do intake first, because its relatively cheap, 50 bucks, where the exhaust will cost you a lot more.
 
Old Oct 1, 2007 | 05:58 PM
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Gotcha, thanks again. I'm probably not going to throw a bigger turbo in until later. I have yet to decide; my car has 67K miles on it, and I drive ~20 miles a day on it, so a turbo would be a big investment for that. I ordered a K&N air filter today, getting it tomorrow. Now for the chip upgrade, I'll go with the APR. Do you have any brand/part suggestions for the DV upgrade? I've read through the DV sticky in the main section and I'm still pretty clueless as to what's decent. Sorry for the newbness, I'm trying my best to learn
 
Old Oct 1, 2007 | 06:06 PM
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Default RE: Intake/exhaust question[s]

The stock TT DV costs about $30-35 and works just fine.

Usually if you go BT you want to get a forge or baileys, because they have come with different strength springs that can be changed out. You can get one now (a lot more $$) or just get the TT one and upgrade the DV again down the road, if you ever decide to go BT.

Welcome to the forum, by the way.

 
Old Oct 1, 2007 | 06:16 PM
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Thanks for the welcome.

I had a question about the chip; GIAC offers a "Tiptronic chip" which decreases the shift time -- I unfortunately a manumatic (Automatic / tiptronic) transmission, and so I was wondering if this does any good. Link related: http://www.awe-tuning.com/pages/shar...L=GIACTipChips

Now, if I were to get this GIAC Tiptronic chip; would it be safer to go with the GIAC chip for increased HP / Torque, or does it not matter if I pick the APR over it?

Also, have you heard anything on how is APR's diverter valve? I'm going to take a few minutes and read the info. on it and compare it to what the DV thread has to say on it, but I'm sure it won't make any sense to me at all. Lemme know what you think. Link to the APR DV:

http://www.goapr.com/Audi/products/r1.html
 
Old Oct 1, 2007 | 06:33 PM
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Default RE: Intake/exhaust question[s]

The tip chip makes the tranny shift faster, so better performance. Not sure if its worth it, I cant recall anyone on the forum that has it, but someone has got to. Maybe start a new post such as "Tip-chip- is it worth it" and see if you can troll for someone that has it and get their opinion (Mine is manual). Or even try a search for it.

It still wont matter which ECU chip you decide to get. I.E., you can get the apr chip and the giac tip chip, wont be an issue.

Im not sure about the APR valve. Personally,I would probably go for a Forge, they are around the same price, and a little more known for good performance. I am sure it would work fine though. The reason for replacing it is that with a chip, the stock one tends to wear out prematurely, and then you dont get all your boost. (not good, not good!) So any of the aftermarket DV's are made a lot sturdier than the stock valve,and they all are pretty good. The stock audi TTvalveis supposed to work fine as well, and a lot cheaper.
 
Old Oct 1, 2007 | 07:02 PM
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Well ****, there's gotta be someone who's an APR fanatic. I'll go with the APR chip and the DV, and let you know how it is once I get them. I can probably get both in two weeks.
 
Old Oct 1, 2007 | 07:33 PM
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Oh, while we're on the topic of exhausts, I was looking around at Borla / Milltek / Techtonic exhausts -- and they're all 2.25" ? The APR is a full 3", so my two-part question is:

1) Is the 3" APR too big for my stock turbo? I don't want to lose some of the backpressure of the turbo through the exhaust.
2) What's the performance difference between the 2.25" and the 2.75" for a stock turbo? I'd like to get a 2.75" just in case I upgrade the turbo later, but I was curious as to what the differences were now.
 
Old Oct 1, 2007 | 09:22 PM
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Default RE: Intake/exhaust question[s]

Idont think its too big. you wont gain much more power from it, but its not gong to hurt you.
2 3/4 is a good size, or 3, especially if you may upgrade the turbo at some point.

Anyone out there think 3" is to big for stock turbo? I have never heard of backpressure being an issue for the stock turbo on these cars.I mean, its a turbo, so the more flow, the better, right?
 



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