ar design 135i/335i TRUE 3" Stainless Catless Downpipes

[ar design]

ar design 135i 3" Hi-Flo™ Catless Downpipes

We are extremely excited to present our new 135i 3" Hi-Flo™ catless downpipes! The only TRUE 3" downpipes currently on the market! In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag, making the fabled N54 engine even more responsive!

Our Hi-Flo™ 3" Catless Downpipes Feature:

• The only TRUE 3" catless downpipes currently on the market! 3" tubing until cat-back flange - all systems currently on the market reduce to 2.5" much closer to the turbocharger.
• 100% Hand Crafted in the USA - not China - from premium 304 stainless steel - flanges and O2 bungs included!
• Water-jet cut 304 Stainless cat-back flanges, and CNC'd 304 Stainless V-Band flanges.
• 100% TIG welded, argon back-purged.
• Set of our exclusive bomb-proof exhaust gaskets included.
• Grade 10.9 Metric Hardware(145,000PSI tensile strength, C32-C39 Rockwell, Zinc Plated), and Nord-Lock positive locking re-usable washers included.
• Factory location O2 bungs
• Available with a 2000° F ceramic coating. Coatings come with a 3 year warranty against corrosion and rust to original owner.
• Lifetime warranty against any manufacturing defects given to original owner.
• We do NOT grind/polish our welds as some other manufacturers do. Grinding welds compromises the strength of the weld, and can lead to weld failure - especially critical in applications exposed to temperatures in excess of 1200°F. Such temperatures will also rapidly deteriorate the polished finish.

Promo Video:
[u2b]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/R8ekRAthh0k&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/R8ekRAthh0k&hl=en&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>[/u2b]

More links:

HD Direct Download: http://www.ardesign.info/video/bmw/3...idp_promo1.avi - right click, save as. Requires DIVX codec. 38mb.
YouTube:

Vimeo:
Want it uploaded some other way? Just holler!


More information on our Ceramic Coatings

The coatings we offer are capable of withstanding temperatures of 2000° F. In addition they offer excellent chemical and corrosion resistance and possesses excellent thermal barrier characteristics, providing a dramatic reduction in radiated heat. This means reduced under-hood temperatures, accelerated exhaust gas velocity and a longer life expectancy for the downpipes.

Ceramics stand above all other thermal barrier coatings currently being used in combustion chambers. Ceramics have characteristics shared by no other product, providing an unrivaled layer of thermal protection to piston tops, aluminum heads, stainless, iconel and titanium valves. Ceramics "move" heat, reducing detonation and increasing the effective oxidation of fuel. When polished, it provides a highly reflective surface that further aids in improved flame travel. Unlike previous ceramic coatings, ours is not subject to cracking and flaking, which can lead to extensive engine damage. In fact, Ceramic coatings actually strengthen the coated part. The cured "Cermet" provides a cap of material that can withstand far more heat. During testing when sufficient heat was applied to a piston to melt the aluminum, the Ceramic did not melt, rather it held the softer aluminum together.

The Satin Ceramic Exhaust Coatings we offer are the most advanced exhaust system coatings available. They are a very durable ceramic-reinforced coating available in various shades. When properly applied, it becomes the most effective thermal barrier coating available, increasing performance while extending component life, and has been tested to over 2000° F without lifting, cracking or flaking

2000° coatings are available in the following colors:

Satin Grey Ice

Satin Titanium

Satin Blue

Satin Fresh Blast

Satin Grey

Satin Black


Dyno chart below is at 95 degrees F ambient, at 6300ft elevation (so the SAE correction factor is a bit high). Only mods are our downpipes, and the AA Xede piggyback (soon to be replaced with a flash tune from ar design!) Needless to say, the car is QUICK!!! Was able to put 1 length on a GIAC chipped/Catback 2003 Audi RS6 with no problems!

Now available at $699 including our exclusive gaskets and hardware!

[professor]

hi andrew. may i ask what is the difference between a TRUE 3" DP as opposed to a FALSE 3" DP? presumably this is a major USP for your product. perhaps you or someone else can explain to me in lay man terms?!

[Upgrade+]

I think what he means is, there is no taper at the end. Just 3in all the way.

[JohnnyTT]

Other companies pipes start 3" at the turbo end and taper to 2.5" near the beginning or soon after.

AR pipes, don't taper till the very end. Which offers less resistance for the turbos to spool up.

And according to many reviews on e90post. The fitment on these is perfect!! No need for shaving or adjustments.

I asked in another thread, but I'll also ask here.... when will catted be available??

Thanks

[ar design]

Correct. We have 2 catted sets in stock, shoot me a PM!

[jwdyeung]

Will the catted DPs require an o2 simulator?

Thanks

[ar design]

No, they do not! I have a set on my car, and have logged 500+ miles so far with ZERO CEL issues.

[135i_TT]

I will say the numbers on the Dyno are extremly nice but id have to see others numbers.. but it does sound nice as well...

[guardianangel3290]

what else was the 335i running?

there's no way it made those kind of numbers on just downpipes.

[Italteen3]

Originally Posted by guardianangel3290

what else was the 335i running?

there's no way it made those kind of numbers on just downpipes.

In the first post he said the DP's and AA Xede.

[guardianangel3290]

oh ok that works haha

[JohnnyTT]

Somebody correct me if I'm wrong... but typically a stock n54 engine makes about 325 HP with an all stock setup.

So these pipes are adding about 30hp extra, with a tune.

[HondaGoneRogue]

Colorado FTW!! 719 right here.

[ar design]

Originally Posted by guardianangel3290

what else was the 335i running?

there's no way it made those kind of numbers on just downpipes.

Originally Posted by Italteen3

In the first post he said the DP's and AA Xede.

Correct :thumbup:

Originally Posted by HondaGoneRogue

Colorado FTW!! 719 right here.

Nice! Shoot me a PM if you'd be interested in helping us test some stuff out!

[frimmelnojerz]

Originally Posted by JohnnyTT

Somebody correct me if I'm wrong... but typically a stock n54 engine makes about 325 HP with an all stock setup.

So these pipes are adding about 30hp extra, with a tune.

huh? i think you're mixing HP and WHP.

[randomquickness]

Originally Posted by JohnnyTT

Somebody correct me if I'm wrong... but typically a stock n54 engine makes about 325 HP with an all stock setup.

I think you are mistaken...a stock n54 does not even make 325 at the crank

[ar design]

Originally Posted by randomquickness

I think you are mistaken...a stock n54 does not even make 325 at the crank

I've seen stock N54s make about 320-330hp at the crank stock. They are absolutely underrated from the factory (300hp)

[frimmelnojerz]

i have one question in regards to the graph you posted. what exactly happened at 4.25k rpms? did you let off the gas briefly?

[ar design]

Originally Posted by Frimmelnojerz

i have one question in regards to the graph you posted. what exactly happened at 4.25k rpms? did you let off the gas briefly?

To be honest, absolutely no idea! We had some issues with the AA tune, that may have been it. We are now running a ProCEDE.

[randomquickness]

Originally Posted by ar design

I've seen stock N54s make about 320-330hp at the crank stock. They are absolutely underrated from the factory (300hp)

well that sure is better than over rated! 325 still seems optimistic when many are getting 270's-280's on base line dyno runs.

[ar design]

Originally Posted by randomquickness

well that sure is better than over rated! 325 still seems optimistic when many are getting 270's-280's on base line dyno runs.

To the wheels. Not the crank

[randomquickness]

^indeed...so approx 50 hp parasitic loss?