S58 Single Turbo Kit – CenCalMotorsport®

Made in USA | Hand-Built in Southern California

Turn your G8X M2/M3/M4 into exactly what it should’ve been from the factory — a clean, efficient, big-power single turbo setup with OEM-plus drivability and race capability.

The CenCalMotorsport® S58 Single Turbo Kit is engineered, fabricated, and assembled in-house in Southern California using proven materials, proper hardware, and calculated design. No mystery fittings, no half-finished “universal” nonsense — this is a complete, thought-through solution built for serious power and reliability.

Designed for enthusiasts and shops who want:

• A tidy, serviceable engine bay
• Consistent boost control & heat management
• A layout that supports huge power goals with room to grow

Key Features

• Made in the USA: All core hot-side components are built in-house with strict quality control.
• Schedule 10 Stainless Manifold: 1.25" runners, T4 flange, designed for strength, flow, and abuse.
• Clean, serviceable layout: Smart routing, 2-piece charge pipe, CNC adapters, and proper block-offs.
• Thermal management built-in: Turbo blanket, coolant relocation, and correct feed/drain geometry to keep temps and oil control in check.
• Complete plumbing solution: Includes feed, drain, vacuum, fittings, gaskets & hardware to eliminate sourcing headaches.

This isn’t a pieced-together kit. It’s a CenCal-built system meant to bolt on, go to work, and go fast!

What’s Included – Base Kit

Everything you need on the hot side & supporting hardware to convert from twin to single:

• Stainless tubular T4 single-turbo manifold (Schedule 10, 1.25" runners)
• (2) Symmetrical dump tubes
• 3.5" stainless downpipe
• 2-piece charge pipe assembly
• CNC throttle body adapter
• (2) 2.5" silicone boots
• 90° 3" silicone boot
• (3) 1/8" NPT → 1/4" barb fittings
• (3) 1/4" barbed T fittings
• 5 ft 1/4" vacuum line
• 4AN oil drain line, 18" (90° → straight)
• 4AN line with (2) 45° ends
• Exhaust flange gaskets
• Exhaust studs & nuts
• Carbon Fiber CC turbo blanket
• Turbo guard
• Coolant tank relocation hose kit
• Aluminum hard-line oil drain tube
• CNC oil drain fitting to block (10AN)
• Turbo oil drain flange → 1/2" NPT
• 1/2" NPT → 10AN adapter fitting
• Stainless 4AN oil feed line
• 1/8" NPT → 4AN adapter fitting
• CNC oil feed fitting to block (4AN)
• CNC oil drain block-off flange
• CNC oil feed block-off flange
• CNC PCV block-off (external catch can strongly recommended)

Every fitting, every line, every block-off is chosen to make this kit as “complete in a box” as possible.

Add-On Options

Dial in your kit around your power goals and style.

Finishes

• Raw stainless (standard)
• High-temp Cerakote (Black, Silver, or Bronze) on hot parts & intercooler piping components.
• Improves thermal control
• Cleans up the bay with a premium finish

Turbocharger Options

We make compatible with any/ every turbo. If you get a turbo from us we will make sure you have the correct downpipe connection & if you are not getting the turbo from us please put the turbo you will use in notes so we give you the correct downpipe connection.

Choose from dropdown at checkout or select “Supplying my own turbo” and note the exact model in notes that you will use.

Optional: Powdercoated turbo housings and T51R mod available for that signature sound and look. If you select powdercoated housing please note the color in notes and add a picture of the color you want in file upload.

Wastegates

• Pair of Turbosmart HyperGate GEN V 45mm external wastegates available as an add-on
• Or select “Supplying my own gates” if you already have trusted gates.

Blow-Off Valve

• Turbosmart GenV RacePort available as an add-on
• Or select “Supplying my own BOV”

If you do not select gates/BOV, you must supply compatible components to match the kit configuration.

Oil Catch Can (Add-On)

• Optional CenCal oil catch can kit (+$499)

Strongly recommended with the included PCV block-off for crankcase control on high-boost setups.

Intake Manifold Upgrade (Add-On)

• Optional cast or billet manifold with built-in port injection provisions (injectors not included).

Replaces the failure-prone OEM plastic manifold and future-proofs your fueling solution (PI/DI capable).

Fitment

• BMW G80 M3 (S58)
• BMW G82 / G83 M4 (S58)
• BMW G87 M2 (S58)

Engineering Highlights – Why the CenCal Kit

1. Built In-House (SoCal):

• We control the process from jig to weld — no outsourced mystery parts.
• Each manifold and hard line is built on dedicated fixtures to ensure repeatable fitment, alignment, and gasket sealing.

2. Smart Packaging & Serviceability:

• 2-piece charge pipe for easier install and removal
• CNC’d adapters and block-offs that fit correctly the first time
• Routing focused on clearing factory components and keeping access for future service

3. Thermal Control That Makes Sense:

• Carbon fiber turbo blanket included standard
• Proper oil drain and feed geometry to avoid oil pooling issues
• Coolant tank relocation hose kit to clean up routing and keep temps under control

4. Complete Hardware & Plumbing:

• You’re not left guessing line sizes or running to the hardware store mid-install.
• Feed, drain, vacuum, gaskets, block-offs — it’s in the box.

This kit is built for the enthusiast who wants OEM-level fitment with race-ready potential.

Lead Time & Ordering

• Due to demand and in-house production:
• Typical lead time: 10–30 days depending on options & current stock.
• Many components are kept on the shelf; some configurations are made to order.
• Actual ship time may be quicker or slightly longer depending on volume.

For time-sensitive builds or hard deadlines, email:
support@cencalmotorsport.com before ordering and we’ll confirm current ETA.

List any custom requests (turbo model, finish, special routing, etc.) in your order notes — our team will review and confirm compatibility before your kit is finalized.

Important Note: This item is not able to be cancelled after purchase for any reason due to these kits being made to order & at a very high demand. Purchasing this product results in agreement that you can not cancel this order. Additionally we do not accept any returns on this items for the same reasons.

Installation, Tuning & Use

• Professional installation is required.
• This setup interfaces with exhaust, subframe, fluids, PCV, and supporting systems.
• ECU calibration/tuning is mandatory for safe operation and to realize the kit’s potential.
• External catch can strongly recommended with our included PCV block-off.
• Designed for off-road/competition use only.
• It is the customer’s responsibility to comply with local, state, and federal regulations.