DO88 for BMW 3 Series E46 (1999-2005)

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DO88 Racing Oil Cooler - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13891842
Part#: OC150
In Stock at Vendor
$ 749.99 USD
Free Shipping on orders $49 and up
With a 185% bigger core volume, 50% bigger cooling area, and a 79% higher oil volume, this oil cooler compensates on no fronts. Built for the track but just as capable on the road, DO88's upgraded oil cooler for the E46 M3 gives you maximum performance and compromises nowhere.
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DO88 Racing Auxiliary Oil Cooler - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13891851
Part#: OC120E46
In Stock
$ 646.99 USD
Free Shipping on orders $49 and up
This racing oil cooler shines in low-pressure situations, for example, power steering oil cooling or gearbox oil cooling. This oil cooler comes ready to install with hardware.
Aluminum Radiator - Black - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13891809
Part#: WC310S
In Stock at Vendor
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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Coolant Hose Refresh Kit - Black - E46 320/323/325/328
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:14155765
Part#: KIT219S
Ships on Jun 24, 2026
$ 360.99 USD
Free Shipping on orders $49 and up
These hoses are entirely manufactured in high-quality silicone for best finish and durability. With three to five layers of armory, depending of the inner diameter, the hoses withstand high-pressure rates and high temperatures for a long time. The original hoses are manufactured in rubber that not seldom cracks from age. This is the durable solution for you that in addition improves the looks!
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Aluminum Radiator - Red Hose - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13891810
Part#: WC310R
Ships on Jun 24, 2026
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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DO88 Coolant Hoses - Black - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13924829
Part#: DO88KIT70S
Ships on Jun 24, 2026
$ 256.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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DO88 Aluminum Radiator - Blue Hose - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13891811
Part#: WC310B
Ships on Jun 24, 2026
$ 735.99 USD
$ 735.99 USD
The team at DO88 has vigorously tested this radiator to deliver peak performance with the peace of mind of quality for your E46 M3. They guarantee reliability and endurance in all situations to let your car breathe better than before! Boasting a 17% increase in core volume, this upgrade is a no-brainer for petrol heads like us. Keeping core temperatures low eliminates the risk of heat soak leading to overheating giving you max performance at any given moment. no compromise has been made at DO88 leaving you with one of the best radiator options on the market!
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Do88 Intake System, BMW 320i 330e 330i G20 G21
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:35323507
Part#: LF-250
Ships on Jun 24, 2026
$ 978.99 USD
Free Shipping on orders $49 and up
  

Introducing the do88 Intake System for BMW 320i and 330i G20 – Engineered for Maximum Performance!

At do88, we understand that filtration, airflow, and heat management are crucial when designing an intake system for turbocharged engines.

Our intake system is designed to provide the turbo with excellent filtration, an optimized airflow path, and consistently low inlet temperatures. One of the key challenges with the B48/B46 engine is the intake system’s location near the exhaust manifold, which generates intense heat and causes rapid heat soak.

High intake air temperatures (IATs) can significantly reduce engine performance, as hot, less dense air makes it harder for the turbo to build boost efficiently. To address this, our fully sealed intake system minimizes heat exposure and maintains low IATs. However, fully sealed systems can face airflow restrictions due to the factory airbox’s single air feed. We resolved this by adding a secondary air feed and incorporating a heat shield into the airbox design to block heat from the exhaust manifold. The large 7” airbox ensures ample airflow around the filter and accommodates strut braces.

We replaced the stock intake hose with a high-flow 102mm (4”) mandrel-bent aluminum pipe paired with a custom silicone hose. The system also features a custom-designed air filter with tightly woven cotton gauze for exceptional filtration. The filter is washable, reusable, and built for long-lasting performance.

Unlike the stock air filter box and intake hose, which are designed with silencers to reduce turbo and induction noise, the do88 system eliminates these elements. This allows for a more pronounced and engaging turbo spool and induction sound, giving you a truly dynamic driving experience.

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DO88 Coolant Hoses - Blue - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
DO88 - Corporate Logo
T#:13924830
Part#: DO88KIT70B
Back Ordered
$ 256.99 USD
Free Shipping on orders $49 and up
Made out of high-quality silicone, these hoses display the highest levels of durability and quality. With three to five layers of armory the hoses are designed to withstand high pressure and heat for an extended period of time. The OE hoses are known to crack and leak but this hose kit eliminates any chance of that.
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