[Tiago@VRSF]

Have you seen an AR downpipe after a few hundred miles? They look like every other DP

[chepy24]

Originally Posted by Tiago@VRSF

Have you seen an AR downpipe after a few hundred miles? They look like every other DP

and this is why i will contact you directly when i purchase mine

[ajsalida]

Originally Posted by Mit_Boost

Nothing against VRSF/BMS DPs, but if you've ever seen an AR DP, the welds are incredible and you're really paying for a top of the line product (just like if you bought Akra DPs, they all do the same thing but the product quality is very different).

Also paying for top of the line american made BMW tax. The workmanship those marketing guys do is exquisite.

[Aerotest]

Originally Posted by stanlalee

You know where VRSF, BMS, N54Tuning and all the $300-400 DPs come from These kind of questions are mainly the reason why lol. Hard to sell principle to customers when someone else is offering a fully functional version of the same thing for half the price.

to add:
CP-e are made in the USA and a good middle ground on price with excellent quality. While imposible to only buy American made these days, I prefer them when when available.

[ken1137]

Just do it ...

[mikelord7]

Do they really make the car smell? I have factory exhaust still but thinking about dps .. Don't wAnt a smell though

[bmwm3redblack]

Go for it if you want power!!!

[Maniac0908]

Originally Posted by Tiago@VRSF

Replacing the OEM downpipes with a catless set decreases back pressure which lengthens the life of your turbos & engine, it doesn't put additional wear on them.

A tune will increase the boost levels which will put a bit of pre-mature wear on your turbos. This is the compromise we make when modifying cars. Upgraded downpipes are hands down on of the most popular mods on this platform for a reason

Agreed. And i love my VRSF downpipes!!! Makes the car sound so nice!

[BAL278]

Originally Posted by Maniac0908

Agreed. And i love my VRSF downpipes!!! Makes the car sound so nice!

This^

[Tiago@VRSF]

Originally Posted by mikelord7

Do they really make the car smell? I have factory exhaust still but thinking about dps .. Don't wAnt a smell though

I've only noticed the smell on a fully catless system with a leak somewhere near the DP's, otherwise there's not really a smell unless you're at a stop and the wind is blowing against the rear.

[dominick]

VRSF=FTMFW!!!

[dbudh001]

Originally Posted by Tiago@VRSF

Replacing the OEM downpipes with a catless set decreases back pressure which lengthens the life of your turbos & engine, it doesn't put additional wear on them.

A tune will increase the boost levels which will put a bit of pre-mature wear on your turbos. This is the compromise we make when modifying cars. Upgraded downpipes are hands down on of the most popular mods on this platform for a reason

What he said , :-).
And yes there are cheaper ones , they all do the same thing and functions the same way , they are just 2 pieces if pipes. However my 2cents ... The AR Designs ones Are awesome. ( I have it ). - Bolted right up. With 0 issues I've seen where A lot of the other ones you have to fight with it a bit to get it to line up with the rest if the exhaust piping ... Something you can do by yourself.

[Maniac0908]

Originally Posted by dbudh001

What he said , :-).
And yes there are cheaper ones , they all do the same thing and functions the same way , they are just 2 pieces if pipes. However my 2cents ... The AR Designs ones Are awesome. ( I have it ). - Bolted right up. With 0 issues I've seen where A lot of the other ones you have to fight with it a bit to get it to line up with the rest if the exhaust piping ... Something you can do by yourself.

My vrsf went in perfectly. No issues at all. And i have xi. They are also half the cost.

[Reckless335]

I don't mean to thread jack, but I have a few questions I'm hoping some of the vendors can answer.

Originally Posted by eric@helix

There's a lot on here about DPs. They do accetuate WG rattle noise, and if you're talking about catless, and you don't have the unmetered cat in the rear section of your exhaust (if you have aftermarket exhaust), your fumes will stink to high hell. That having been said, if you want the performance of full bolt-on, you gotta do it. A good intercooler doesn't have the downsides of DPs.

I'm planning on going catless DP as I want to go FBO eventually. I don't really like the sound of any of the aftermarket cat-back exhausts, so I plan on just doing a muffler delete. (Sounds good IMO) Anyways, You mentioned having an "unmetered cat" in the rear section of your exhaust? I'm not 100% sure what you mean by this. What exactly is that? Or better yet, if I do a muffler delete and go with catless DPs, will I get the smell (of any sort) and if so then what would I need to eliminate it?

Originally Posted by mikelord7

Do they really make the car smell? I have factory exhaust still but thinking about dps .. Don't wAnt a smell though

I don't want a smell either. I'm curious to hear from the vendors.

Originally Posted by Tiago@VRSF

I've only noticed the smell on a fully catless system with a leak somewhere near the DP's, otherwise there's not really a smell unless you're at a stop and the wind is blowing against the rear.

By fully catless system what exactly has to be taken out? Obviously catless DPs, but are you talking about resonators being removes as well? Basically straight pipes coming out? As stated above I'd like to do catless DPs and a muffler delete, keep all resonators in place. You said "otherwise there's not a smell unless wind's blowing against the rear"? How bad is the smell then? I'm assuming it's the infamous "catalytic converter smell" of rotten eggs?

I'm very curious about this "unmetered cat"..... is this something that comes factory on the car? and if so will I retain it if I do a muffler delete? Or is it an aftermarket part that I'll have to add somewhere? I just don't want my car to smell bad as it's daily driven.

[Tiago@VRSF]

These cars have rear cats in the mid pipes. If you add catless downpipes, you get a mildly more aggressive exhaust note, not loud enough to be considered aftermarket but definitely noticeably more than stock.

By unmetered cat Eric meant there aren't any o2 sensors before or after the cat. Again, all E90 & E92 models have a cat in the OEM downpipe and a cat in the mid pipes.

[AlpineSwift]

Originally Posted by latino1ny

How bad is the smell then? I'm assuming it's the infamous "catalytic converter smell" of rotten eggs?

Not unless you're running pig rich. The engines these days are very efficient and produce a hell of a lot less pollution than they used to. I have yet to smell a catless N54 that smelled distinctly like "rotten eggs". I do smell a "fuel" related odor that is definitely more pronounced at idle.

[Reckless335]

Originally Posted by Tiago@VRSF

These cars have rear cats in the mid pipes. If you add catless downpipes, you get a mildly more aggressive exhaust note, not loud enough to be considered aftermarket but definitely noticeably more than stock.

By unmetered cat Eric meant there aren't any o2 sensors before or after the cat. Again, all E90 & E92 models have a cat in the OEM downpipe and a cat in the mid pipes.

So as long as I leave the midpipe cats I'll be ok? I need a set of cats to pass inspection anyways, so I can't remove ALL the cats, just wondering if leaving the mid pipe cats is enough that I won't get a smell.

Wouldn't an unmetered cat throw a code though? If I'm not running any O2 sensors?

[Bimmerman_87]

Originally Posted by Tiago@VRSF

Replacing the OEM downpipes with a catless set decreases back pressure which lengthens the life of your turbos & engine, it doesn't put additional wear on them.

A tune will increase the boost levels which will put a bit of pre-mature wear on your turbos. This is the compromise we make when modifying cars. Upgraded downpipes are hands down on of the most popular mods on this platform for a reason

Hey any discounts on the 335xi downpipes for e90post members ?

http://www.vr-speed.com/vrsf-3-stain...bmw-135xi.html

[Tiago@VRSF]

The current XI DP's at least two hundreds of dollars less than anyone else on the market, $385 is as good as it gets right now but if you like us on facebook you'll have a better chance of catching our next sale

[Maniac0908]

Originally Posted by Tiago@VRSF

The current XI DP's at least two hundreds of dollars less than anyone else on the market, $385 is as good as it gets

Agreed. And they fit perfectly. And sound perfect.

[AlpineSwift]

Originally Posted by Tiago@VRSF

The current XI DP's at least two hundreds of dollars less than anyone else on the market, $385 is as good as it gets right now but if you like us on facebook you'll have a better chance of catching our next sale

Clicking "Like" ASAP.

[Spun Crankhub]

I would trade my children, if I had any, for another set of Afe downpipes.