✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Luxury Forge Motorsport Bmw M3/m4 Chargecooler (s55) Highly Recommended [b27iaBvH]

$73.99 $236.99 -69%

Product DescriptionIn addition to the Forge Motorsport PolarCooler range, here we have the top mount replacement chargecooler and expansion tank for the BMW MSport S55 Engine.The Chargecooler features an all aluminium construction which overcomes all

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Luxury Forge Motorsport Bmw M3/m4 Chargecooler (s55) Highly Recommended [b27iaBvH]

Product Description

In addition to the Forge Motorsport PolarCooler range, here we have the top mount replacement chargecooler and expansion tank for the BMW MSport S55 Engine.

The Chargecooler features an all aluminium construction which overcomes all the issues relating to plastic end tank splitting, failure at high boost and leaks between the core and end tanks with end tank seal failure. The end tanks are fabricated using high precision laser cut sheet metal panels which are TIG welded by hand for maximum strength and durability.

Designed and manufactured at Forge Motorsport HQ in Gloucestershire, England, we utilised our Solidworks CAD design system to assist in the creation, modification, CFD (Computational Fluid Dynamics) analysis and optimization of this innovative charge cooler. Three different core constructions were evaluated during the development process. The final design of a bar and plate core far outperformed the other two alternatives. In doing this, the Forge Motorsport development engineers have made a quadruple pass design, allowing the water to flow through four passes of the cooler which improves the cooling efficiency beyond any other products currently on the market.

Unique to the market, the Forge BMW M3/M4 S55 Chargecooler system (that also fits the M2 Competition F22 2018-) uses an expansion tank rather than a header tank like the OEM system. There is a filler cap located at the highest point on the Chargecooler allowing you to be sure that the charge is 100% full of coolant with no air pockets. This maximises the efficiency of the heat rejection of the coolant within the Chargecooler water jacket.

  • Offering over 71% increase in volume and over 42% increase of frontal area.
  • In hot climate testing, constant dyno runs showed significantly lower inlet temperatures compared with the stock system and an increase in power of up to 20BHP.
  • As part of Forge Motorsport’s strict quality control process, each chargecooler unit is carefully inspected and pressure tested to 4BAR before despatch.
  • Located on the outlet tank of the chargecooler there is also a 1/8 NPT port ready for water/methanol injection if required.

The existing OEM Chargecooler rubber mounts are used for this expansion tank and Chargecooler, isolating the system from the harsh vibrations of the engine. No trimming or cutting of the vehicle is required and all parts can be returned to standard if necessary.

In the box

1x Chargecooler unit
1x Expansion tank with sight glass
1x Expansion tank cap
1x Small radiator cap
1x Billet radiator cap cover
1x Billet blanking cap
1x 1/8 NPT Grub screw
7x M6x12mm  Allen cap bolts
7x 6mm washers
1x M8x20mm Allen cap bolt
1x 8mm washer
1x M8 Nyloc nut
3x 8-16mm Hose clamps
1 x 8mm ID Vacuum hose x 170mm
1x 8mm ID Vacuum hose x 750mm 

    What Our Customers Say

    January 27, 2026

    Absolutely no complaints!

    An excellent product with a great feel.

    - Judson C..

    January 27, 2026

    Absolutely no complaints!

    This is a very solid and reliable tool.

    - Questa P..

    January 27, 2026

    Absolutely no complaints!

    This sets a new high bar for quality.

    - Cormac B..

    Write a Review

    You Might Also Like

    Discover more great products from our collection.

    Exterior-Hinkley-28830DX

    Exterior-Hinkley-28830DX

    (524)
    $68.99 $220.99 -69%
    Mackifeld Sofa Table

    Mackifeld Sofa Table

    (767)
    $47.99 $153.99 -69%
    EBC S6 Brake Pad and Rotor Kit

    EBC S6 Brake Pad and Rotor Kit

    (515)
    $42.99 $137.99 -69%
    7 Dual-SIM

    7 Dual-SIM

    (944)
    $49.99 $159.99 -69%
    BOB Wayfinder Travel System

    BOB Wayfinder Travel System

    (719)
    $83.99 $268.99 -69%
    Sequin Pattern Gilded Ribbon

    Sequin Pattern Gilded Ribbon

    (214)
    $25.99 $83.99 -69%
    Matcha Wallpaper // Brown

    Matcha Wallpaper // Brown

    (457)
    $34.99 $111.99 -69%
    Epoxy Logo Charcuterie Boards

    Epoxy Logo Charcuterie Boards

    (795)
    $83.99 $268.99 -69%
    JUNE - June 1

    JUNE - June 1

    (207)
    $30.99 $99.99 -69%

    Copyright 2026 © technovaprecision.com

    VISA
    PayPal
    Stripe
    Mastercard
    CASH ON DELIVERY