SKU: 51771924436

do88 BigPack BMW F8X M3 M4, Intercooler + Radiators

Sale price$1290.15 Regular price$1433.50
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Description

do88 BigPack BMW F8X M3 M4, Intercooler + RadiatorsThis is our different BigPack configurations for the BMW M3 M4 F8X. These are complete packages for the charge air cooling system with drop in fitment! The S55 turbo engine that powers the BMW M3 M4 F8X uses a Top mounted water cooled intercooler instead of an regular; air cooled intercooler. The stock top mounted intercooler has a Tube&Fin core with clamped plastic end tanks. This construction has its drawbacks since it is prone to crack and start

This is our different BigPack configurations for the BMW M3 / M4 F8X. These are complete packages for the charge air cooling system with drop-in-fitment!

The S55 turbo engine that powers the BMW M3 / M4 F8X uses a Top mounted water-cooled intercooler instead of an regular; air-cooled intercooler. The stock top mounted intercooler has a Tube&Fin core with clamped plastic end tanks. This construction has its drawbacks since it is prone to crack and start leaking coolant into engine or leaking boost pressure out of the tank sealings.

The coolant in this system has its own separate cooling circuit combined of two parallel connected radiators and a pump. The larger one of these two parallel connected radiators is positioned in the front of the center cooling pack, the second smaller one is located in front of the right-side wheel arch.

These cars are equipped with plastic intercooler pipes on both the hot and cold side. These pipes are a week link on any tuned car or in some cases even on a stock tune. The OE plastic pipes often crack / split leaving you with a boost leak.

We have designed upgrades for all these parts by advanced 3D scanning and 3D modeling in the scanned environment. We conducted CFD simulations on most parts and several tests to make sure we deliver the best performance upgrade!

You can choose between three different options for this product.

1. Intercooler and both intercooler pipe kits
2. Intercooler and both radiators for intercooler system
3. Intercooler, both intercooler pipes and both radiators for intercooler system

Our performance intercooler helps your engine to make more power both by lowering the intake air temperature and lowering the pressure drop! It is a bar and plate unit with 3D freeform designed end tanks TIG welded to the core. It has a core volume 85% larger than stock intercooler and outperforms the stock unit both when it comes to air flow and cooling efficiency. 16% better flow and 9°C lower IAT, so with both better flow and lower IAT this is a true upgrade!

Our radiators for the charge air cooling circuit lowers the water temperature in the charge air cooling system circuit. This is equal to lower intake air temperature which gives both more power and a more persistent performance. We achieve this by increased cooling face area, increased core thickness and well composed cores made with multichannel tubes!

Our intercooler piping, both the ones that goes from the turbochargers to the intercooler and the one that goes from intercooler to throttle body is designed to add durability and at the same time improve air flow. It is not easy to improve both reliability and improve air flow as the stock pipes flows well. With our software flow simulation and physical flow verification abilities we are sure that we are making improvements which is more than most suppliers of this kind of pipes can say!

For more information about the included parts visit the product pages for each one of them:

Intercooler
Turbo to intercooler pipes
Intercooler to throttle body pipe (J-pipe)
Front mounted (Large) intercooler system radiator
Side mounted (Small) intercooler system radiator

Significant advantages with do88 BigPack (differs between the configurations):

- Peak powergain of 13 hp! Measured on car with BootMod3 Stage 1 tune.
- Highest midrange powergain of 25 hp!
- Highest torque gain of 52 Nm!
- 9-14°C lower IAT, depending on configuration!
- 16-17% higher air flow!

Fits:

BMW M3 / M3 Competition
Model years: 2015-2018
Model: F80

BMW M4 / M4 Competition / M4 GTS / M4 CS
Model years: 2015-2020
Model: F82 F83


OEM-reference:


17517846235, 11617846245, 11617846246
11617848447,11618057992




Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51771924436

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These socks seem thinner than in the past. Quality not as good.
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no body!
Natrona Heights, US
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Perfect fit
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Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
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Birmingham, US
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast. These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid. A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day. We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice. Ratings: • No slipping: 10/10 • Price: 7/10 • Durability (so far): No pilling or loose threads — promising start.
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