[Dinan_Engineering]

     Featured on BIMMERPOST.com

Dinan F90 M5 Cold Air Intake & Turbo Inlet Pipes

Part Number: D760-0049 & D760-0053

Applications:

• 2018-2021 F90 M5
• 2018-2021 F90 M5 Competition
• 2020-2021 F91/F92/F93 M8 (Inlets Only)
• 2020-2021 F91/F92/F93 M8 Competition (Inlets Only)

Product Page(s) / Pricing:
Cold Air Intake: dinan.info/F90-M5-CAI
Turbo Inlets: dinan.info/F90-M5-TIP

Release Date: Available Now!

Description (Cold Air Intake): The M5 is the flagship of the marque and as such deserves to showcase the best possible components. The Dinan Carbon Fiber Cold Air intake for the latest generation of M5 holds true to that philosophy and offers arguably the best performing and most efficient sealed intake solution on the market. Quite possibly the most visually impressive as well.

The first thing noticed upon gazing upon the engine bay equipped with the Dinan intake is the sheer amount of gloss UV coated 2x2 carbon fiber. Stretching from one end of the engine compartment to the other, courtesy of a fully functional secondary air inlet wishbone, the material is not only beautiful to look at but serves the purpose of heat deflection as well. The wishbone, which mimics the equally impressive calling card of the F8x M3/M4 engine compartment, is purposeful in a different way. Instead of adding structural integrity, the wishbone serves as the conduit for a secondary air source deriving its contents from a central hood scoop located behind the front grilles. The additional air flow supplements the factory inlet locations on both the left and right air boxes with ambient air from outside of the engine compartment. These air boxes have been enlarged and equipped with massive filters to handle this increased volume and together with the rest of the system allow the intake to flow as efficiently as possible.

While the stock intake system is adequately suited to support up to stage 1 power levels that does not mean there is no performance benefit when upgrading to the Dinan system. Besides its amazing appearance the biggest advantage of the system, by virtue of additional and optimized flow, is the reduction of the pressure depression in the stock system. This equates to the turbo having to work less in order to achieve targeted power. With the turbo working more efficiently this also means a lower pre-turbine backpressure, lower turbocharger shaft speeds, lower turbocharger compressor discharge temperatures, and for the ability to achieve higher boost pressure levels. Coupled with the optional Dinan Turbo Inlets these effects are even more exacerbated and represent ideal optimum flow and efficiency. Paired with the natural improvement to throttle response, a minor bump to the acoustics, and a visual appeal that will leave anyone speechless the Dinan F90 M5 carbon fiber intake system is a perfect complement to the "best."

Features/Benefits (Cold Air Intake):

• Increased turbo efficiency, reliability, and head room.
• More Flow: 11% greater than stock (Stock: 575 CFM, Dinan: 637 CFM @ 28" H2O per bank).
• Improved throttle response.
• Center wishbone inlet/scoop incorporated as an additional secondary air source for maximum airflow.
• Larger volume air boxes (31% larger than stock) that completely seals allowing an increased volume of air to be utilized.
• 35% increase in filter area (stock: 56.5in², Dinan: 80in² per side) for optimum flow.
• Bolt-on installation.
  

Description (Turbo Inlet Pipes): The Dinan Turbo Inlets are an easy-to-install bolt-on upgrade that eliminates the largest obstacle in the entire factory intake system, the turbocharger inlets themselves. They are an upgrade that is both cost effective and an important stepping stone in the modification journey to unlocking maximum power out of the luxury sedan.

From the factory, the plastic inlets are limited and allow very little volume to pass as they neck down dramatically to the turbochargers themselves. This reduction stifles flow and increases the pressure ratio pre-turbine causing the turbochargers to work harder than necessary. This is a problem Dinan engineers took great care in rectifying through exhaustive prototyping and testing to ensure maximum future power potential while also having compatibility with numerous potential configurations. The benefit of their hard work are Dinan Turbo Inlets that are constructed of gloss UV coated 2x2 carbon fiber and are designed to mate seamlessly with whatever level of modification to the intake system you anticipate (paired with either stock air boxes or the full Dinan Cold Air Intake System). Where the carbon fiber ends an aluminum adapter to connect to the stock turbocharger begins. Using the same factory locking system, installation in this area is straightforward and earmarked by a "click" when secure. The simplicity making this quite possibly the quickest and least aggravating installs on the platform you will encounter. The pipe itself has been created to offer the largest possible cross-sectional area all the way from the intake filter to the turbo, a staggering 200% increase in volume over stock. This is the key to maximum performance gains from the system and the reason for the organic and unorthodox shape of the Dinan inlet system. While the effects of the additional volume are pronounced on a vehicle equipped with the factory airboxes and results in average gains of +11 WHP / +13 WTQ from 2000 RPM to redline, the overall efficiency of the entire intake system is maximized when paired with the Dinan Cold Air Intake that is also delivering an increased volume of cooler air earlier in the intake tract.

Robust testing with a fully instrumented engine further illustrated the multitude of benefits the Dinan Turbo Inlets offer beyond the confines of the dyno room and flow bench. Simply put, the F90 M5 / F9x M8 Dinan Turbo Inlets assist in allowing the turbocharger to operate at a lower pressure ratio, which means it will operate more efficiently. This directly translates to lower pre-turbine backpressure, lower turbocharger shaft speeds, lower turbocharger compressor discharge temperatures, and for the ability to achieve higher boost pressure levels.

Features/Benefits (Turbo Inlet Pipes):

• More Power: Max gains of 22 WHP and 18 lb-ft of torque @ 6500 RPM on an otherwise stock vehicle. Average gains of 11 WHP and 13 WTQ from 2000 RPM to redline.
• Outflows the factory inlets.
• Larger internal diameter throughout (maximum cross-sectional area allowed).
• More volume (~200% more than stock; 105 cubic inches vs. 35 cubic inches per side).
• Carbon fiber construction for heat insulation and visual appeal.
• Quick and easy bolt-on installation.

[Holset]

Nice!

[AngryInch]

Is there any gain to running the upgraded intake piping from the stock air box to the turbo? I see that is sold separately.

[Dinan_Engineering]

Originally Posted by AngryInch

Is there any gain to running the upgraded intake piping from the stock air box to the turbo? I see that is sold separately.

Assuming you are referencing the inlets? The bullets points above for the inlets are with that configuration (stock intake, Dinan inlets) so additional flow, more power, etc.

[Slugsy01]

Is this suitable for 2022 models?

[Dinan_Engineering]

Originally Posted by Slugsy01

Is this suitable for 2022 models?

Should be the same. The backend database doesnt have the 2022 M5/M8 in it yet though hence it not being listed.

[6speed_M2]

Will these be CARB legal?

[m5 guy]

These look good! It's almost looks like a combo of the Gruppe M and Eventuri. I really like how you folks came up with a solution for the inlet tubes. No one else has done that yet.

[Holset]

Seems like pretty clever design to take in air from the top like that.

Do you have any plans to also develop new lower filter boxes and intake pipes with scoops? Or are the stock ones good enough?

[Dinan_Engineering]

Originally Posted by 6speed_M2

Will these be CARB legal?

That's the ultimate goal but its still a VERY fuzzy picture when it comes to removal/replacement of the factory hydrocarbon filters. CARB does not have a test for them yet so no intake that gets rid of them will be able to be CARB approved. We have integrated a carbon liner as our own solution to replace what the hydrocarbon inserts did (have used this method since the F10 M5 intake on affected platforms) and that is in the process of potentially being a approved solution. However, it all comes down to what CARB does for a test that currently does not exist.

Originally Posted by Holset

Seems like pretty clever design to take in air from the top like that.

Do you have any plans to also develop new lower filter boxes and intake pipes with scoops? Or are the stock ones good enough?

No plans to. There is no gain in real estate (volume) by replacing the lower boxes so it would just be adding cost unless you somehow integrated a secondary air inlet on the bottom but thats what the top scoop is for so to do both is a bit overzealous. Truth is the stock intake/configuration flows enough air to support up to stage 1 power levels. The main purpose of the intake is the optimization of that flow and getting the pressure as close to ambient as possible to reduce workload on the turbos for a more efficient system. Now if you are planning on building a 1000+ HP monster, then yes, the intake does flow more to support those numbers. However, the vast majority of folks that will make no difference for.

[trev230]

This is really nice. When is that tune coming to match it? lol

[Holset]

Originally Posted by Dinan_Engineering

That's the ultimate goal but its still a VERY fuzzy picture when it comes to removal/replacement of the factory hydrocarbon filters. CARB does not have a test for them yet so no intake that gets rid of them will be able to be CARB approved. We have integrated a carbon liner as our own solution to replace what the hydrocarbon inserts did (have used this method since the F10 M5 intake on affected platforms) and that is in the process of potentially being a approved solution. However, it all comes down to what CARB does for a test that currently does not exist.

No plans to. There is no gain in real estate (volume) by replacing the lower boxes so it would just be adding cost unless you somehow integrated a secondary air inlet on the bottom but thats what the top scoop is for so to do both is a bit overzealous. Truth is the stock intake/configuration flows enough air to support up to stage 1 power levels. The main purpose of the intake is the optimization of that flow and getting the pressure as close to ambient as possible to reduce workload on the turbos for a more efficient system. Now if you are planning on building a 1000+ HP monster, then yes, the intake does flow more to support those numbers. However, the vast majority of folks that will make no difference for.

Alright good to know. Always nice too see more intakes on the market.

[Dinan_Engineering]

Originally Posted by trev230

This is really nice. When is that tune coming to match it? lol

Waiting on the last of the emissions testing to be done. E85 has been giving us some troubles pasing but hopefully that will get resolved very soon.

[Slugsy01]

Going to ask a really ignorant question! Is this a alternative to Eventuri/Gruppe?

[FotiosF90M5]

Wow that is a gorgeous piece. Very eager to try this piece and it looks like you guys really took your time to do this right and make it a very worthy mod. Great job guys.

[FatRear08]

I have to admit, it’s a nice looking setup if you want a lot of carbon fiber under the hood.

[AngryInch]

Originally Posted by Dinan_Engineering

Assuming you are referencing the inlets? The bullets points above for the inlets are with that configuration (stock intake, Dinan inlets) so additional flow, more power, etc.

Thanks. I am ordering, hopefully they are in stock and ready to ship?

[19M5]

Is there a before and after dyno, on a stock F90 M5?

[eric97hoh]

Originally Posted by Dinan_Engineering

Waiting on the last of the emissions testing to be done. E85 has been giving us some troubles pasing but hopefully that will get resolved very soon.

Wow you guys are doing a e30 tune as well? Remarkable stuff ! And I’m assuming even using your inlet pipes with other tunes would be a good gain as well

[Dinan_Engineering]

Originally Posted by Slugsy01

Going to ask a really ignorant question! Is this a alternative to Eventuri/Gruppe?

Just another option for an intake setup. The ones mentioned are probably the most similar however.

Originally Posted by AngryInch

Thanks. I am ordering, hopefully they are in stock and ready to ship?

They are.

Originally Posted by 16HC

Is there a before and after dyno, on a stock F90 M5?

On the inlet product page is where you can find the performance graphs. The CAI on its own after adaptation has no meaningful power gains hence why no chart is included.

Originally Posted by eric97hoh

Wow you guys are doing a e30 tune as well? Remarkable stuff ! And I’m assuming even using your inlet pipes with other tunes would be a good gain as well

We are doing the various octanes you can get direct from the pump (91, 93, 100, 104, and E85). Once you start going into mixes it gets a bit complicated in terms of tuning (really needs to be custom at that point) and emissions testing.

Inlets would work with other intakes (assuming the same mate point which is not always the case) and tunes just fine.

[brad65ford]

How come there is no effort to go flex fuel on these f90’s? Sounds like the fuel system can push e85 why not add a flex fuel sensor and let tuning adjust per octane?

[Dinan_Engineering]

Originally Posted by brad65ford

How come there is no effort to go flex fuel on these f90’s? Sounds like the fuel system can push e85 why not add a flex fuel sensor and let tuning adjust per octane?

Who said there was no effort? Biggest thing is just getting something to market in the first place though rather then delaying it with additional features into perpetuity.

Now how about that intake... <insert ooo's and aaaah's>