S85 CSL OE+ Carbon Plenum

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More induction sound.

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

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.
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.

Amongst many must-have components, the engineers at BMW M developed a complete carbon intake prototype in short order.

It was never released.  

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

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

S85 CSL OE+ Carbon Plenum

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Pure induction sounds.

The sound is taken from a Sennheiser MK400 microphone on top of the A7ii. No under the hood trickery.
Mandatory Engine Mapping

The carbon plenum runs using Alpha N as the engine mapping protocol. No rewiring nor new sensors is needed on the OE+ variant.

Read my Alpha N notes
It's counterintuitive, but it fits.

In this journal entry, I cover the hardware requirements and the plenum's counter-intuitive installation process.

Read the installation notes
Upgrade to the Competition Spec
The side inlets and sealed intake inlet tubes can be upgraded to complete the intake kit to original CSL specifications.
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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