S85 CSL OE+ Carbon Plenum
by InfinityDesign
Build journal: a special series
From a myth, to a prototype, to reality.

In 2009, BMW M built a one-off prototype of a BMW M5 CSL based on the E60 M5 V1 to celebrate its 25th year.

It was never released.  

The engineers at BMW M developed a complete carbon intake prototype in short order.

They didn't consider the real world implications of their design. They knew it would never be produced [...] no one would dare.

In this Special Series, I take a dive into the backstory, development, installation and impressions of the InfinityDesign S85 CSL Carbon Plenum.

Enjoy,
- Matt / @m3_epoustouflant

More induction sound.

The thinner pre-preg carbon constructions allows for more induction noises to come through.

More flow.

Sligthly revised trumpets are flow optimized and oriented towards the air inlets.

Leak free.

The lid, sid inlets and trumpets come installed with neoprene gaskets. This material tolerant to extreme conditions and temperatures of up to 500F / 260C.  

OE hardware compatibility.

The design incorporates all OE hose fittings along with oil separators.

Pick your finish.

The Gloss and Matte finishes are achieved using a 2 component automotive clear-coat.
MANDATORY ENGINE MAPPING
Purely AlphaN

Alpha is the throttle position and N is the engine speed. AlphaN uses the throttle position as the load rather than the MAF sensors.

It runs using the original MAF sensors plugged into, but purely using them a temperature sensors.

No rewiring nor new sensors is needed.

You can pick a basic AlphaN Calibration enabling you to run your S85 without any codes.

The AlphaN Performance Tuning combines the engine map protocol change with performance optimization in traditional "stage" tunes.

Spec your plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
S85 CSL OE+ Carbon Plenum
Infinity Design

ID-S85-CSL-OE-GL(None)

S85 CSL OE+ Carbon Plenum

  • Factory Direct Process
  • EuroConnex Exclusive
Regular price$3,800.00
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It's counterintuitive, but it works.
I documented the installation process extensively.
Keyword: Modular

The engineering team at Infinity Design tackled this development project with a key focus on modularity. 

The goal was to offer a product that would meet the expectations of most enthusiast S85 owners.

Sal @ InfinityDesign
Legacy knowledge.

InfinityDesign's unique product design and engineering is crafted by the grand-daddy of the most popular S85 products and tuners to hundreds of S85s: Salmen.

As a former Evolve co-owner, he headed engineering & development for all products.

He notably signed off on numerous popular V10 products: e-tronic exhaust systems, headers, cat deletes, carbon intakes along with the V8 supercharger kits & tuning maps during the 2000s until he exited the company in 2015.

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