Milltek exhausts?

2.7 V6 30v biturbo - 251bhp
2.7 V6 30v biturbo - 261bhp
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okkim
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Post by okkim » Thu Sep 18, 2008 1:37 pm

I have that now on my car, and I think it is quite good! :) It fits to the car very good, just twisted a little anticlockwise though, which is easy to fix.

The sound is not loud, and the low end is ok. Could be a bit louder in my opinion.

dest
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Post by dest » Thu Sep 18, 2008 1:38 pm

How would you say it compares sound wise compared to a Milltek?
What size bore is it?

From what you said it could be a good alternative to a Milltek, especially with the saving that would be made!
Do you have any pics of it fitted?

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Post by travs » Thu Sep 18, 2008 1:56 pm

Think about it - why do all these companies perform their R&D? There's going to be all manner of issues regarding flow rate, ensuring the two pipes are the same length, materials used for welds/baffling, back-pressure issues even the balance of the whole unit or certain parts or where how mounting points affect the hang of the exhaust on the downpipes etc. (I'm guessing)

Its usually a safe bet that you pay for what you get - a low-priced exhaust might be so because a lot of these R&D costs haven't been incurred but you can pretty much bet that other corners are cut.
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Post by loomx » Thu Sep 18, 2008 2:52 pm

I cant knock the miltek system, it sounds fantastic in my opinion. my only complaint is that with the windows closed its way to quite for me when im going for a fun drive. I have to open all the windows to enjoy it.

I would like to make mine louder... I have the miltek 100cell cats, if were to put decatted downpipes in would that increase the volume? also what does each box do in the exhaust system, is one a silence and another a resonator. Would it be worth getting one of the boxes removed and straight pipe welded in place?

Also has anyone seen the Fast Intentions exhaust vid on youtube... Now that sounds amazing!
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okkim
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Post by okkim » Thu Sep 18, 2008 5:39 pm

Two exhaust pipes same lenght? That doesn't make difference in anything if those are not. That exhaust is so cheap compared to the Milltek that you can buy two (or more) of these in the same time than the Milltek lasts.

Unfortunately I don't have any photos installed. It doesn't touch to the cars body ever, not even on the track. OD was 60 mm if I remember correctly.

I think that this is little louder than Milltek, but too silent for me :)

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Post by S4 » Thu Sep 18, 2008 6:09 pm

Some millteks have really tight bends on some systems, I am not talking about just Audi. I have seen parts that have gone a little narrow in places. Price is high for what you get.

If you are not going for a twin and just want a single, an RS4 exhaust can be used, and the centre box either changed for a free flowing one of removed( for even better flow) Bar the centre box the standard RS4 system is all stainless.

you can pick one up for around £100-120 do the math, its a good deal after you have sorted the centre box


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Post by curtis11 » Thu Sep 18, 2008 7:12 pm

milltek exhausts sound like nothing, i want an exhaust to have some balls .

http://uk.youtube.com/watch?v=EGLNdmVCtYE

i know its not sitting in the middle in the video ( it is now ) i imported this from america, superb quality and as for the sound DAMN

http://neverenoughauto.com/index.php?ta ... ct_id=2409

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Post by dest » Thu Sep 18, 2008 10:06 pm

I was impressed with the quality of my Milltek on the S2, but Id be willing to bet the difference between it and the one on ebay isnt worth the £400 or so difference in price!!
Im going to take my chances with it I think, if it turns out crap then its not a big outlay, but the fact someone else on here already has one and says its fine is plenty good enough a recommendation for me :)

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Post by dest » Fri Sep 19, 2008 12:11 am

Forgot to say, do you know what gains were had from that ebay exhaust?

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travs
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Post by travs » Fri Sep 19, 2008 1:20 pm

okkim wrote:Two exhaust pipes same lenght? That doesn't make difference in anything if those are not.
Fair enough. I based this on the fact that both length and bore would affect back-pressure and thought it right to have the same back-pressure on both banks of cylinders.

But then I'm not in exhaust manufacture so can't claim any voice of experience.
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Post by S4 » Fri Sep 19, 2008 5:58 pm

If you want something good, this http://www.haywardandscott.com/services.asp will make you what you want, tell them to make the biggest twin they can and they will.

Look at there quality


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Post by MilkybarKid » Fri Sep 19, 2008 9:37 pm

travs wrote:
okkim wrote:Two exhaust pipes same lenght? That doesn't make difference in anything if those are not.
Fair enough. I based this on the fact that both length and bore would affect back-pressure and thought it right to have the same back-pressure on both banks of cylinders.
You are right enough in what you say if the 2 sides are to join into a single line, the 2 sides should be equal length from the turbos to the join, but where the 2 sides stay separate itll make no difference.

The same goes for manifolds, if you have equal length sections merging in sequence as opposed to just joining in one big line you will get a vaccuum effect where the previous cylinder's exhaust gases help to pull the next from the comb chamber

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K1Mac
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Re: RE: Milltek exhausts?

Post by K1Mac » Sat Sep 20, 2008 2:52 am

Bluebrakes wrote:I live near oxford.
if you live near Oxford then you're also close to Doug @ MRC (Banbury), why not take a drive up there and have a chat with the guys and you'll probably get to see some examples while your there?

just a thought.

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travs
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Post by travs » Wed Sep 24, 2008 12:30 am

MilkybarKid wrote:
travs wrote:
okkim wrote:Two exhaust pipes same lenght? That doesn't make difference in anything if those are not.
Fair enough. I based this on the fact that both length and bore would affect back-pressure and thought it right to have the same back-pressure on both banks of cylinders.
You are right enough in what you say if the 2 sides are to join into a single line, the 2 sides should be equal length from the turbos to the join, but where the 2 sides stay separate itll make no difference.

The same goes for manifolds, if you have equal length sections merging in sequence as opposed to just joining in one big line you will get a vaccuum effect where the previous cylinder's exhaust gases help to pull the next from the comb chamber
Cool - cheers MBK


Lee
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Post by spen » Wed Sep 24, 2008 10:31 am

The vibrant exhaust sounds awesome. Correct me if I am wrong but isn't it a 3" single pipe thus it will not bring about the same performance as a dual system?

I was looking at the Vibrant but instead I just fitted one of these:

http://www.autospeed.us/store.php?crn=2 ... how_detail

It sounds a lot like this:

http://www.youtube.com/watch?v=fUCJk0hNdd0&NR=1

It is *LOUD*, probably too loud. I only been flipped off by a 330 Ci with the hood down so far. I couldn't ascertain if his anger was at being destroyed off the lights or at his perforated ear drum :lol:

Before this exhaust I had a custom build with two silencers. This one is much louder and I suspect has improved performance. It feels like it has lost a touch of low end torque, but I'll survive with just 500ftlbs. However, it really holds up at the red line where the peak power falls after 6000 rpm.
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