Akrapovic Vs Milltek exhaust...

[MartayMcFly]

I definitely prefer the Akra sound and I'm also firmly in the 'Millteks are too raspy' camp, but I'm not sure how I'm going to get my head around £4.5k EXTRA above the Milly. I'm going to look at custom systems, maybe HMS or JCWeldfab.

[Surrey Sam]

Didn't know stainless steel rusted away?

Not all stainless is equal.

One Milltek RS4 exhaust (over priced tat) for your perusal:

[M1R XE]

Agree with Chris 100%. And if you don't want either just get the regal down pipes for the gains and centre section done for sound if needed.

[A20LEE]

Akrapovic, the milltek sound cheap and tinny. As said above why put a budget exhaust an RS audi?

[Chesterfield]

Paying for just its name and exhaust note?

The Akraprovic is made from Titanium, not some poor quality stainless steel that rusts away after a few years. That's what you're really paying for, there's probably 3k in just raw materials for the Akraprovic system.

At £12/Kg for pure titanium bullets that would make it a 250kg exhaust system.

It is also entirely possible to have stainless steel which has higher corrosive resistance than titanium and vice versa.

I've not heard either exhaust in the flesh so I wouldn't make any judgments on either personally, but for the price I would want the Akraprovic to be miles ahead of the Miltek to justify it's cost.

[Andy_W]

I quite fancy a bit more noise than the OEM sports exhaust but had bad experience with Milltek in the past (RS5) that droned like hell at 4K rpm. Had it taken off in the end. Shame there are no other quality options other than the titanium expense of Akra.. Might just bite the bullet and do it but wish they did normal style tips.

[Noyjatat]

Just spray them after.

[MikeFish]

I quite fancy a bit more noise than the OEM sports exhaust but had bad experience with Milltek in the past (RS5) that droned like hell at 4K rpm. Had it taken off in the end. Shame there are no other quality options other than the titanium expense of Akra.. Might just bite the bullet and do it but wish they did normal style tips.

I thought the tailpipes were a separate bolt on like the OEM ones. I'd imagine you can keep original tips with akra exhaust.
Or get a JC Weldfab exhaust made to look and sound how you like it.

[W8PMC]

Figures are from MRC,

Stage 1 680-700
Stage 2 740-750

The only difference between Stage 1 and Stage 2 is the full exhaust system. My car has had both Stage 1 and Stage 2 tunes from MRC.

If you follow MRC's Facebook page, you'll find about a dozen examples of C7 Stage 1 vs Stage 2 results.

The C7 exhaust has 4 cats in the system and is very restrictive. The gains from stage 2 come from the downpipes, not the catback section. This is where the Akra system is let down, there's no downpipes upgrade. (I dread to think of the cost if they did offer the full system)

As for the Milltek, yes, although it's not a titanium system, it doesn't need to be. For me, I'll have the car maximum of 3yrs, the stainless steel Milltek will far outlive my ownership. It's very well made and I've not heard of any quality issues personally.

Dont get me wrong, the Akra is 2nd to none build and quality wise, it's just the Milltek offers the performance benefits. )

I'm sure the MRC Stage 2 albeit only has the Milltek as an additional piece of hardware, but they also apply a more aggressive Stage 2 tune which is where most of the uplift comes from. I've no idea what the hardware alone offers up in gains, but I'm sure it's the exhaust & enhanced tune combined that give the extra 50bhp, not the exhaust on its own.

[MartayMcFly]

I'm sure the MRC Stage 2 albeit only has the Milltek as an additional piece of hardware, but they also apply a more aggressive Stage 2 tune which is where most of the uplift comes from. I've no idea what the hardware alone offers up in gains, but I'm sure it's the exhaust & enhanced tune combined that give the extra 50bhp, not the exhaust on its own.

In their stage 2 video, MRC say 591PS and 791Nm for Stage 2 parts and no map, then up to 750PS and 1008Nm mapped (on that particular car anyway).

[W8PMC]

I'm sure the MRC Stage 2 albeit only has the Milltek as an additional piece of hardware, but they also apply a more aggressive Stage 2 tune which is where most of the uplift comes from. I've no idea what the hardware alone offers up in gains, but I'm sure it's the exhaust & enhanced tune combined that give the extra 50bhp, not the exhaust on its own.

In their stage 2 video, MRC say 591PS and 791Nm for Stage 2 parts and no map, then up to 750PS and 1008Nm mapped (on that particular car anyway).

So that's 25bhp ish from Stage 2 parts only? Still nowhere near 50bhp (unless i'm misunderstanding). What parts are in their Stage 1, just panel filter or is it a cat-back system with Stage 2 including downpipes? Strange they'd offer a non map stage 2 as 25bhp for i guess £2.5k+ is a bit of an ask.

[Leo-RS]

Hi Paul,

You wouldn't fit a full turbo back exhaust to a car and not map it, you would bugger the fuelling and it would likely lose horsepower, not gain it so with that in mind, no, the exhaust alone wont give you 50hp.

What it will do though is give you a 50hp increase over and above a Stage 1 tune.

If you fit the exhaust and get them to Stage 2 tune the car straight away, you'll have in the ballpark around 740-750. If you don't fit the exhaust and get them to carry out a Stage 1 tune, then you will have around 680-700. If you fit the turbo back exhaust to the Stage 1 tune without mapping it, you would more than likely overboost due to running less back pressure from the now less restrictive (or missing) cats. Not sure on the power output but it obviously wouldn't be optimised to 740-750.

All C7's are actually 'Stage 2' tuned from MRC and hence their hefty price tag. This means that they are all fully customised, each car taking a day on the dyno. MRC cannot load in a generic file that worked well on a C7 last week and hope it works on this weeks C7, the C7 is a different beast and from what I hear from the guys at MRC, very unpredictable, each car tunes differently. Stage 1 and Stage 2 is however a good way of determining the state of tune from the car, Stage 1 (software only) Stage 2 (Software + exhaust) - MRC would only charge you dyno time should you go from Stage 1 to Stage 2 as effectively all it is, is a tweak to the existing already fully customised map.

[W8PMC]

Hi Paul,

You wouldn't fit a full turbo back exhaust to a car and not map it, you would bugger the fuelling and it would likely lose horsepower, not gain it so with that in mind, no, the exhaust alone wont give you 50hp.

What it will do though is give you a 50hp increase over and above a Stage 1 tune.

If you fit the exhaust and get them to Stage 2 tune the car straight away, you'll have in the ballpark around 740-750. If you don't fit the exhaust and get them to carry out a Stage 1 tune, then you will have around 680-700. If you fit the turbo back exhaust to the Stage 1 tune without mapping it, you would more than likely overboost due to running less back pressure from the now less restrictive (or missing) cats. Not sure on the power output but it obviously wouldn't be optimised to 740-750.

All C7's are actually 'Stage 2' tuned from MRC and hence their hefty price tag. This means that they are all fully customised, each car taking a day on the dyno. MRC cannot load in a generic file that worked well on a C7 last week and hope it works on this weeks C7, the C7 is a different beast and from what I hear from the guys at MRC, very unpredictable, each car tunes differently. Stage 1 and Stage 2 is however a good way of determining the state of tune from the car, Stage 1 (software only) Stage 2 (Software + exhaust) - MRC would only charge you dyno time should you go from Stage 1 to Stage 2 as effectively all it is, is a tweak to the existing already fully customised map.

Absolutely, but i think the point someone else made was that a Milltek (same as any exhaust really) would not free up 50bhp standalone, it's the tune aspect of the Stage 2 that's freeing up those 50 horses, not the exhaust which at best may offer up 20-30bhp (i'd guess).

Albeit no exhaust involved with my car, but the Stage 2 tune increased power by 60bhp & 100lbsft, had i added any aftermarket exhaust i'd have unlikely gained much as DMS's own car has an Akro & is running slightly less power & torque than mine.

[RS6chris!]

Akrapovic, the milltek sound cheap and tinny. As said above why put a budget exhaust an RS audi?

Is A Milltek classed as a "budget" exhaust??

[W8PMC]

Akrapovic, the milltek sound cheap and tinny. As said above why put a budget exhaust an RS audi?

Is A Milltek classed as a "budget" exhaust??

I wouldn't have said so but against an Akra i guess it could be viewed as that.

Had several Millteks on a variety of cars & never felt they were budget quality or price, but then again when i had mine their wasn't quite the selection of exhausts their is now & although Akro probably existed as a company, they certainly weren't a name i recognised or encountered.