Spec your CSL kit

S85 CSL Competition Carbon Intake System

S85-CSL-Comp-AlphaN

S85 CSL Competition Carbon Intake System

Name: S85 CSL Competition Carbon Intake System
Brand: Infinity Design
SKU: S85-CSL-Comp-AlphaN
Price: 5000.0 USD
Availability: OutOfStock

Shipping calculated at checkout.

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Specifications:

Modular Plenum Design:

Modular velocity stacks design for customization per performance objectives.
Modular intake inlet design for increase air volume.
Modular construction for easy fitting to the angled S85 throttle bodies.
Removable bolted lid for easy access to velocity stacks & removal of the plenum.

CNC'ed ITB fittings for reliability.
Retains all PCV and vacuum hoses.
Complete pre-preg & autoclaved carbon fiber construction

2x2 weave pattern
Matte or Gloss clear coated finish

Complete Kit:

1 piece Carbon plenum, CSL Side Inlets, Sealed Air intakes with CSL Intake Tubes, Air Filters.

Upgrade from Carbon Plenum:

CSL Side Inlets, CSL Intake Tubes, Lower Air Ducts, Air Filters.

Upgrade from Carbon Plenum & Sealed Intakes:

CSL Side Inlets, CSL Intake Tubes.

Upgrade from Sealed Intakes:

Carbon Plenum, CSL Side Inlets, CSL Inlet Tubes.

Stage Tuning

Tuning is often offered in "stages" that optimize for your peripheral performance upgrades.

Stage 1:

Standard cars. I highly recommend the sealed air intakes.

Stage 2:

Optimized for primary cat deletes & aftermarket long tube headers.

Stage 3:

Optimized for V3 long-tube, equal length headers.

Extra specifications available:

Raised RPM limit to 8500rpm
Idle RPM adjustments
VMax Limit removal
Cold start delete
Power calibrations with changes made to ignition, fuel, torque and VANOS maps

FAQ

Yes.

Yes! I used this kit here. You'll need 2x.

I first want to test these before making them available.

Mandatory AlphaN mapping

The complete carbon intake runs using Alpha N as the engine mapping protocol.

The larger inlets will not have MAF bungs to optimize for space.

A new pair of Intake Air Temperature sensors will be required (like pictured).

Learn more about AlphaN

It's counterintuitive, but it works.

I documented in vast details the installation process of the OE+ plenum. I will further document the Competiton Spec specifics.

If your mechanic thinks he's smart and skips this, don't pay the bill.

Read my installation notes

Build journal: a special series

Reimagining the original BMW CSL prototype.

The CSL Plenum OE+ variant introduced in 2022, yet a few of us wanted more.

We wanted as close to the CSL prototype.

The Competition Spec aims at achieving this objective with a massively enlarged, fully sealed, complete carbon intake system running exclusively on AlphaN.

I've built upon the original Special Series to dive into the development, test fitment, performance testing and impressions of the Competition variant.

Enjoy,
- Matt / @m3_epoustouflant

Read the special series