Berk's new 4" Downpipe for the N55! Dyno's & pics!

[BerkTechnology]

“Track Tested, Dyno Proven” products from a champion pedigree now available for your road going street car.

The same championship winning and record setting parts that power the Berk Technology BMW’s are now available for your street machine. The master craftsmen at Berk Technology are proud to introduce their 4″ downpipe for the new BMW N55 single turbo engine. Our ultra low backpressure design adds a dyno proven 23HP and 30ft/lbs of torque without any additional tuning devices or piggybacks. Engineered and dyno verified to be the highest flowing and lowest restriction downpipe on the market. In addition to the added horsepower the Berk Technology N55 4″ downpipe will give your stock exhaust a more aggressive tone under throttle while still maintaining daily driving civility at cruising speeds.

Specs:


“Straight shot” design = maximum flow!


Master craftsmanship from racers and race car builders. Let our racing experience work for you.


Stainless Steel Hardware, Nordlock positive locking fasteners for a leak free seal under the toughest race conditions.


More power everywhere! Boost remains rock solid, safer air fuel ratio, quicker spool = WIN/WIN/WIN

• Ultra low backpressure 4″ downpipe
• 23HP gain over stock at the same boost level with no tuning devices
• 30TQ gain over stock at the same boost level with no tuning devices
• Straight shot design for zero restriction and high velocity
• Largest possible tubing for quicker spool
• Zero taper on flange at turbo for largest possible pressure differential
• Largest downpipe on the market, uses more 4″ tube than the competition
• 100% Made in the USA
• Optional: Ceramic coatings normally used for race pistons for much greater thermal barrier protection compared to exhaust coatings
• $599.99 MSRP

[BerkTechnology]

reserved

[marsel]

where can we buy one?

[Vlaze]

Since you had no tuning devices on the car, how quickly is thing thing going to throw a CEL or did you have a CEL fix on it. If so which one?

[JimmyT]

Is this catted or catless?

[marsel]

I dont get why no one is interested in this downppipe. I think this is the best downpipe out for the N55.

[BerkTechnology]

We do not have a catted version yet. If there is interest for one then shoot me an email and we can make it happen. As a manufacturer we have an advantage in total quality control and speed to market as we do not have to rely on others to get things done.

We sell direct to the public and you can also get one from one of our dealer network. There are several right here on 1addicts and E90post.

[APupNamedSmokey]

^Why did you guys choose to go with a 4" downpipe than let's say a 3.5"?
I can't imagine that the old excuse, "bigger is always better" applies to everything lol.

[Vlaze]

I think it's great you guys have made a quality catless downpipe. The numbers from the downpipe alone are fantastic. How are you dealing with any check engine lights, or are you getting any?

[SiN55]

Is it safe without the fine tune with this "new" exhaust component?

[FrankiE90]

Originally Posted by SiN55

Is it safe without the fine tune with this "new" exhaust component?

yes fine.
been running the DP without a tune.
it's a dramatic difference in driving.

Originally Posted by APupNamedSmokey

^Why did you guys choose to go with a 4" downpipe than let's say a 3.5"?
I can't imagine that the old excuse, "bigger is always better" applies to everything lol.

I'm sure Berk will answer - but look at the dyno chart.
either 4" or 3.5" the gains are there.
Berk's DP has been solid on my 3er as a daily driver.

at one point i thought that the 4" was overkill, but after dyno'n
that theory has been debunk'd. I can say that for Berk's 4" DP -
u have to check other peoples dyno on their DP. just be an inform
buyer and you'll choose a solid product.

Originally Posted by Vlaze

I think it's great you guys have made a quality catless downpipe. The numbers from the downpipe alone are fantastic. How are you dealing with any check engine lights, or are you getting any?

you can run the CAN tool to remove the SES light.
or get a full tune, most tunes will auto delete the light from start up.
or don't worry bout it and enjoy the extra power.