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      01-28-2013, 09:58 PM   #1
Pat@sonictuning
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Lightbulb Active Autowerke | Agency Power | AR Design | Fabspeed | Downpipe for your N54 & N55

Active Autowerke

A turbo impeller wheel speed is mostly limited by the exhaust back pressure within the system. If one could eliminate some or most of this exhaust back pressure, the turbo will spool that much faster and effortlessly resulting in quicker engine revs and increase HP. The Active Autowerke Signature down pipe is designed with the intent to maximize in power. The down pipes are created with the least amount of restrictions possible by utilizing a full 3" piping throughout with the least amount of bends possible, that is impressive when compared to the factory diameter of 2.50". What you will experience is a faster, more responsive engine because the turbo impeller now has the ability to spool that much faster. The end result is more power. For added durability, factory like support braces are also implemented to alleviate stresses upon the turbos. Made from 304 stainless throughout ensures a robust and durable exhaust that will provide trouble free performance with the longevity to match. All flanges are 304 stainless with the 0.060" wall thickness (~1.5 m.m.)

note: designed for off-road use, car will have CEL without Active Autowerke Software Upgrade for Off-Road use


Key Features:

-Designed with less restrictive curves and more straight flows
-Full 3.00" diameter piping throughout allows for maximum power output
-Quicker turbo spool
-Durable construction from 304 stainless with 1.50mm wall thickness
-Precise fit installation
-Full down pipe exhaust support braces relieves load bearing stress
-Installation instructions included




Looking to increase the power on your BMW 135i and 335i with the N55 single turbo engine.
Install the Active Autowerke N55DP and unleash the true power that is hidden in your BMW 135i and 335i.

The turbo is often described as a device that creates free horsepower becuase it is driven by already spent exhaust gases. In the BMW 135i and 335i, this exhaust gas is being restricted by the current factory downpipe which slows down the speed of the factory turbo to maintain or reaching the turbo optimum peak.
The N55DP was created from inception as a test pipe that would substitute the factory exhaust catalyst to relieve this back pressure. As such, the end result is a product primarily suited for off road applications like racing.
A turbo impleller wheel speed is mostly limited by the exhaust back pressure within the system. If one could eliminate some or most of this exhaust back pressure, the turbo will spool that much faster and effortlessly resulting in quicker engine revs and increase horesepower. The Active Autowerke Signature exhaust down pipe is designed with the intent to maximize the power. The downpipe is created with the least amount of restriction possible by utilizing 4.00" piping with the least amount of bends possible. What you will experience is a faster, more responsive engine because the turbo impeller now has the ability to spool that much faster. The end result is more power. For added durability, factory like support braces are also implemented to alleviate the stresses upon the turbo. Made from 304 stainless steel throughout ensures a robust and durable exhaust that will provide trouble free performance with the longevity to match. All flanges are 304 stainless steel with 0.060" wall thickness (1.50mm)

NOTE: Designed for off-road use, the BMW will have a CEL light without the Active Autowerke sofware for off-road use.


Key Features:
Designed with less restrictive curves and more straight flows
4.00" diameter piping allows for maximum power output
Quicker turbo spool
Delivers an increase in performance consistently
Durable construction from 304 stainless steel with 1.50mm wall thickness
Precise fit installation
Full down pipe exhaust support braces relieve load bearing stress
Detailed CD instructions featuring mostly pictures and short text



Agency Power


Agency Power downpipes are designed to improve your turbo charged vehicles performance. Agency Powers These pipes are made from polished 304 stainless steel. They connect to the headers with a 3" diameter opening and V band flange. They have an inside diameter of 2.60". The larger diameter design will improve exhaust flow, keep boost pressure up and provide improved throttle response. This down pipe eliminates the catalytic converters. Each down pipe has 2 oxygen sensor locations.





Agency Power;s downpipes are designed to improve your turbo charged vehicles performance. These pipes are made from polished 304 stainless steel. The N55 engine runs a single turbo setup as the predecessor to the N54 twin turbo engine. It connects to the single turbo like stock with a V-Band clamp and then connects to the section 1 mid pipes. The downpipe has an inside diameter of 4" with 2.5" flanges. The larger diameter design will improve exhaust flow, keep boost pressure up and provide improved throttle response. This down pipe eliminates the catalytic converter. With the reduced back pressure, the exhaust will have a slightly different tone and the overall driving performance will be noticed. The down pipe has two oxygen sensor bungs so you can retain the factory inputs. An ECU Flash is recommended to maximize the performance of your car. Thick flanges, sturdy hangers and increased flow make these down pipes a must have for all 135i and 335i enthusiasts with the single turbo N55 cars.




AR Design

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.
Typical gains with tuning in the 30bhp range!
100% hand crafted in the USA 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.





Our Hi-Flo™ 4" Catless Downpipes Feature:

The only 4" catless downpipe currently on the market! Built with a carefully made 4" to dual 2.5" collector that mates to the factory style exhaust.
Typical gains with tuning in the 20+hp range!
100% hand crafted in the USA 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 flange.
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, with an added bung for a wideband O2 sensor!
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.
More information on our Ceramic Coatings




Fabspeed

Fabspeed; best know for their Porsche, Ferarri and Lamborgini exotic car systems- along with VAC's 50+ years in high performance engine building and racing combine to offer exhaust products that meet the toughest requirements: Exceptional power gain, perfect fitment, great looks and a refined yet muscular sound..
Its skills like this that make Fabspeed our choice partner when it comes to offering solutions that improve what is already a skillfully engineered automobile. Fitment of our downpipes is spot-on and fit tightly to the body as a direct replacement for stock, read on to find out if the VAC by Fabspeed downpipes meet your high standard...

Power:
Turbo cars need their turbochargers to spool up and flow freely as quick as possible to create power and to improve low end response. This is a critical note when tuning your N54 not just to be more powerful, but to be more responsive and fun to drive.
Our downpipes do just those things...
The N54 engine made more torque earlier in the power band and gained peak power over stock of 20-30hp and 30ftlbs (measured at the wheels) from 2500 to redline! Downpipes make a great bolt on upgrade by themselves or with other bolt on mods. ECU tuning can further improve power but is not required due to our design.

Technology & Design:
Fabspeed manufactures each downpipe from OEM grade 16 gauge stainless steel, 100% computer-bent for spot on accuracy on every set. All tubing is bent in house at Fabspeed on their high end mandrel bender capable of 1D turns. To ensure the most robust and heat resistant install, 14-gauge flanges are used for coupling to the other exhaust components so they will not crack, warp, or fatigue. All welding is beautiful done by hand by the artisans at Fabspeed with full penetration into the sub-metal, and none are ground like lesser knockoff products.
The dirty little secret of other downpipes? The rest of the exhaust system is not 3"! Most downpipes with a 3" outlet cause the rough transition to other exhaust systems causing a loss of power next to our custom solution... Fabspeed / VAC downpipes are different:
Rather than add turbulence and sell based on marketing hype as many 3" downpipes have, our downpipes maintain a custom diameter starting out the turbocharger outlet to allow for maximum exhaust gas velocity with the minimum amount of turbulence. The dowpipes taper to the correct exhaust size and allow for a turbulence-free merge to the rest of your factory or aftermarket exhaust system. This means that boost levels stay more consistent; and in our testing made more power than two other 3" high-end competitors products!
Primary Catalytic Converters are eliminated for maximum power, and can never rattle like downpipes that have high-flow cats fitted. A great match for your street car or track car. We use this same downpipe pipe on our daily driven and regularly raced 460HP 135i so we can show that it holds up, doesn't impede clearance, sounds wonderful and makes terrific power.


Sound:
Elimination of the primary cats gives a more aggressive sound to the exhaust, expect similar sound and volume levels as other catless downpipes.
Can be used by themselves or with any other rear exhausts as well. Sound is sporty when used with factory rear exhaust, aggressive when fitted with an aftermarket rear exhaust system.


Value:
Part of our partnership with Fabspeed is that we help them make sure we offer best-in-class performance and value. Value means exceptional quality at a price that the BMW enthusiasts can afford.
Each downpipe set is made in the USA at Fabspeeds state of the art facility in Pennsylvania with quality control and performance the top prioritys. Fabspeeds design has been tested to deliver performance beyond many full 3" size DPs and the fitment is perfect, plus the price is extremely competitive next to other made in USA offerings, often competing with lower quality off-shore made products!
All systems are made with Fabspeeds lifetime warranty against failure and each piece is quality controlled by Fabspeed's staff before shipping.





AFE

The aFe Power cat-delete, race down-pipes eliminate the catalytic converters for maximum exhaust flow for the popular BMW 1 series and 3 series with the N54 twin turbo motor. In recent dyno testing, these race pipes produced 17 horsepower and 32 x ft. torque over the factory down-pipes. These high performance race pipes are constructed out of lightweight, TIG-welded, 3 inch, brushed finish, 304 stainless steel and use thick 3/8 inch 304 stainless steel flanges for a leak-free seal and a factory fit.

All aFe exhaust systems are engineered and manufactured in the Corona, California manufacturing facility.

Tig-Welded: 100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.

Factory O2 Sensor Locations: These down-pipes use factory mounting locations for the O2 sensors.

Hassle-Free Installation: All hardware and brackets are included for a hassle-free installation.

Note: This is a "Race Only" product used solely for competition. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use including recreational off-road use could be in violation of local, state and federal laws. A check engine light will emitt and aFe recommends using a programmer but it is not necessary.

Also Fits:
BMW 335iS 11-12 L6-3.0L (tt) N54
1 Series M Coupé (E82) 11-12 L6-3.0L (tt) N54







If you are looking for a highly engineered down pipe, look no further than the aFe Power Mach Force XP Down Pipe. On our chassis dyno, this down pipe produces 14 horsepower and 39 lbs. x ft. of torque at 1900RPM and is constructed of mandrel bent, brushed 304 stainless steel tubing and flanges that mount to all factory mounting locations. This system uses a unique resonance chamber to capture sound waves and minimize in-cab resonance producing an aggressive tone on throttle with a smooth sound at cruising speeds without effecting performance. This down pipe is 100% TIG-Welded and uses a stepped design that increases exhaust velocity and eliminates low pressure drops which helps to scavange the exhaust for increased intake charge and more power.

Tig-Welded: 100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.

3 1/2 to 4" Stepped Design: A unique 3.5" to 4" stepped design, popular with race headers is used to increase exhaust velocity and increase usable torque. This means more aggressive throttle response and increased passing power.

Brushed 304 SS Construction: This down pipe is constructed of durable CNC mandrel bent brushed 304 stainless steel tubing for maximum performance, corrosion resistance and strength eliminating cracking.

Resonance Chamber: This down pipe is designed using a resonance chamber to help reduce the in-cab resonance found with other down pipes.

Hassle-Free Installation - All hardware and brackets are included for a hassle-free installation. This unit also comes with a 2-year warranty.

aFe down pipes are engineered and manufactured in our Corona, California manufacturing facility.

Also Fits:
BMW 335i 11-12 N55 L6-3.0L (t)
BMW 135i 11-12 N55 L6-3.0L (t)





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      01-30-2013, 01:26 AM   #2
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      02-06-2013, 12:19 AM   #3
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      02-08-2013, 02:06 AM   #4
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      02-18-2013, 11:46 PM   #5
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      03-06-2013, 01:46 AM   #6
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      03-17-2013, 11:29 PM   #7
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      03-18-2013, 07:00 PM   #8
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Price shipped to 91801 for AR downpipe N55. And for the autowerke
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