BMW 3 Series Performance Parts

Why Does Your BMW 3 Series Need Performance Parts?

The 3 Series is rewarding to drive, but the same engines that make it fun also carry well-documented weak points. The parts in this collection exist because we fix those exact failures, day in and day out, across the E46, E90, and F30 generations.

Soot Buildup and Stuck EGR Valves on the Diesels

The M47, M57, N47, and N57 diesels recirculate exhaust gas through an EGR cooler that slowly packs the intake manifold with hard carbon. Swirl flaps seize, the EGR valve sticks open or shut, and the cooler itself starts weeping coolant into the intake. Left alone, you get limp mode, rough idle, and in the worst cases a hydro-lock from a failed cooler.

Plastic Coolant Flange and Thermostat Failure on the Gas Mills

The N52, N53, N54, N55, and N20 share the same infamous weakness: a plastic thermo-to-block coolant flange, factory part 11537541992, that turns brittle with heat cycles and cracks. When it lets go it dumps coolant fast, often over the belt and the front of the engine. It is not a question of if, but when, on a high-mileage car.

PCV Blow-By and Intake Valve Carbon on the Turbos

The N54 and N20/N26 turbos pull oil-laden blow-by through the PCV system straight onto the intake valves. Because these are direct-injected engines, nothing washes the valves, so carbon builds until the car stumbles on cold start and loses throttle response. The oil also pools in the intercooler and charge pipes.

What Can These Performance Parts Solve?

Each part in the lineup is a targeted fix for one of those failure modes, built from the materials that actually hold up under heat.

Metal Coolant Flanges Replace the OE Plastic

The CNC-machined 6061-T6 billet aluminum thermo-to-block flanges and coolant fittings are a direct replacement for the cracking factory plastic. They mate to the block with high-temperature Viton O-rings and T304 stainless hardware, and they carry coolant through precision-machined passages instead of a brittle shell. We also stock the N54 coolant pipe relocation flange that reroutes the failure-prone section away from turbo heat.

Oil Catch Cans Intercept Blow-By Before the Intake

The N54 and N20/N26 catch cans sit inline in the PCV stream and pull oil and condensation out of the crankcase gases before they reach the intake valves. CNC-machined billet canisters, high-temperature Viton seals, and braided stainless or silicone hose mean you service a canister instead of decarbonizing a head.

EGR Delete and Blanking Kits Remove the Soot Source

For deleted competition builds, the EGR delete, cooler delete, and blanking plate kits shut down the soot circuit on the M47, M57, N47, and N57 diesels. CNC-machined 6061-T6 billet aluminum and T304 stainless plates, high-temperature Viton gaskets, and the included valve repair tool let you clean up a choked intake and keep it clean.

Shop BMW 3 Series Performance Parts by BMW Engine & Fitment Guide

• EGR Delete Kit & Cooler Valve Delete - Fits the N57 3.0 diesel in the 325d, 525d, and 730d (2010-2015). Removes the EGR cooler and valve circuit that soots up the diesel intake on deleted builds.
• EGR Delete Cooler Kit - Fits the N47 2.0 diesel in the 320d, 520d, 120d, 220d, and X1, X3, X5 (2007-2015). Deletes the cooler to stop carbon packing the swirl-flap intake.
• EGR Blanking Blank Kit - Fits the M47N2/M57N2 diesel in the 318d, 320d, and 330d across E87, E90, E91, E92, E93, E60, E61, E65, E66, E83, E70, and E71 (2003-2010). 6061 billet plates blank off the EGR port at the manifold.
• EGR Blanking Delete Kit - Fits the M47/M57 diesel in the E46 and E60 318d, 320d, 330d, 520i, 525d, and 530d (1998-2010). A clean blanking solution for the older diesel mills.
• EGR Valve Blanking Block Plates Kit (8mm) - Fits 8mm EGR ports on the E38, E39, E46, E53, E65, E66, and E90 (1996-2010). Covers both gas and diesel 8mm valve blanking applications.
• EGR Cooler Delete Kit (close thermostat) - Fits the M47/M57 diesel across the 1, 3, 5, and 7 Series on E60, E61, E65, E66, E70, E71, E83, E87, E90, E91, E92, and E93 (2003-2010). Deletes the cooler and closes the thermostat circuit at the valve cover.
• EGR Valve Repair Tool - Fits the M47N2/M57N2 diesel in the 320d, 330d, 525d, 530d, and 535d on the E60 and E61 (2003-2010). The puller that frees a stuck EGR valve without snapping the stem.
• Reservoir Oil Catch Can with Silicone Hose - Fits the N54 3.0 turbo in the 335i and 135i on the E90, E92, and E82 (2006-2010). Billet canister with silicone hose that catches PCV blow-by before it carbon-fouls the intake.
• Oil Catch Can Tank - Fits the N54 3.0 turbo in the 335i and 135i (2006-2010). A compact billet tank for the same N54 blow-by fix.
• Oil Catch Can for N20/N26 - Fits the 2.0 turbo N20/N26 in the BMW 1, 2, 3, and 4 Series, including the F30 320i and 328i (2011-2016). Keeps oil out of the intercooler and off the intake valves.
• Coolant Outlet Flange Hose Thermo-to-Block METAL Upgrade - Fits the N20, N26, N52, N54, and N55 gas (2006-2016). 6061 billet replaces the cracking OE plastic thermo-to-block flange.
• Coolant Hose Thermo-to-Block METAL Flange Upgrade - Fits the N20, N52, N53, N54, and N55 gas (2006-2016). The alternate-fit metal flange for the same failure-prone plastic housing.
• Coolant Water Hose Fitting - Fits the N20, N52, N53, N54, and N55 gas, replacing OE 11537541992 and 11537544638 (2006-2016). Direct-fit fitting for the leak-prone coolant junction.
• Engine Coolant Pipe Relocation Flange - Fits the N54 in the 135i, 335i, and 535i (2006-2010). Relocates the coolant pipe flange away from the turbo heat that cooks the original.

Why Choose EGR Performance?

The industry standard for high-performance diesel reliability.

Premium Quality & Rigorous Testing

Our EGR, DPF, and CCV delete kits are engineered from premium-grade materials and subjected to brutal quality control and field testing. Unlike generic alternatives, our products are built to withstand extreme heat and pressure, delivering unmatched durability and long-term stability when your rig needs it most.

20 Years of Proven Diesel Expertise

We aren't just selling parts. We live in this industry. With two decades of hands-on experience providing specialized modification solutions for heavy-duty truck owners, our upgrades have been extensively proven across every driving environment, from daily towing to high-performance tracks.

Industry-Leading Standards

We work hand-in-hand with top-tier industry partners and reputable organizations. Every product we design, test, and ship meets or exceeds strict industry standards, ensuring your Powerstroke, Cummins, or Duramax gets the exact precision it deserves.

Real Results, Proven Track Record

Thousands of diesel owners trust us to unlock their engine's true potential. Our massive library of positive customer feedback and successful build case studies proves one thing: our kits deliver real horsepower, lower EGTs, and flawless reliability in the real world.

What performance parts are in this BMW 3 Series collection?

This collection holds the hardware that actually fails on the 3 Series, not styling trim. You will find EGR delete and blanking kits for the M47, M57, N47, and N57 diesels, CNC-machined oil catch cans for the N54 and N20/N26 gas turbos, and 6061-T6 billet metal coolant flanges for the N52, N53, N54, and N55 that replace the cracking OE plastic.
It does not carry cold air intakes, exhausts, M Performance body kits, or suspension parts; those live with specialists or your BMW dealer.
If your goal is to fix a weeping coolant flange, catch PCV blow-by, or clean up a sooted diesel intake, you are in the right place.

Do you sell the BMW M Performance aero kit, spoiler, Alcantara trim, or floor mats?

No, and it helps to know the difference. M Performance is the genuine BMW factory accessory line, covering carbon aero splitters, rear spoilers, Alcantara steering wheels and interior trim, floor mats, and the M Performance exhaust tips.
Those are OEM styling parts sourced through a BMW dealer, and we do not carry them.
Our BMW 3 Series performance parts are functional aftermarket hardware, EGR, cooling, and oil-separator components, not cosmetic factory trim. For a true M Performance kit, contact your BMW parts department.

Is there a cold air intake or induction kit for the BMW 3 Series?

No, we do not sell a cold air intake, induction kit, or performance air filter for the 3 Series in this catalog, including the F30, E90, E46, and E92.
This lineup is EGR, coolant, and PCV hardware, not intake airflow. An open-cone intake or sealed induction kit is a different product category carried by intake specialists.
If you are chasing the 330i intake manifold swap or E90 intake scoops, those are not stocked here either.

Which upgrades fit my N54 335i or 135i from 2006 to 2010?

For the N54 3.0 turbo in the 2006 to 2010 335i and 135i, we carry three targeted parts. The N54 oil catch can, in both the tank and reservoir-with-silicone-hose styles, pulls PCV blow-by out before it carbon-fouls the intake valves and pools in the intercooler.
The thermo-to-block metal coolant flange and the coolant water hose fitting replace the brittle OE plastic that cracks and dumps coolant.
We also stock the N54 engine coolant pipe relocation flange for the 135i, 335i, and 535i, which moves the pipe away from turbo heat. We do not carry an N54 cold air intake, downpipe, or tune here.

Which parts fit my N20 or N26 F30 320i or 328i?

For the 2.0 turbo N20 and N26 in the 2011 to 2016 F30 320i and 328i, plus the 1, 2, and 4 Series, we carry the N20/N26 oil catch can and the metal coolant flanges.
The catch can handles the same direct-injection intake carbon and intercooler oil pooling the N54 suffers from.
The thermo-to-block metal coolant flange and coolant water hose fitting cover the N20 directly, since it shares the cracking plastic housing design. There is no N20 or N26 intake, exhaust, or tune in this catalog.

Do you carry EGR delete or blanking kits for the diesel 318d, 320d, 325d, and 330d?

Yes, this is the strongest part of the lineup for the diesels. We stock EGR delete and cooler delete kits for the N47 2.0 in the 320d, 520d, and X1, X3, X5, and for the N57 3.0 in the 325d, 525d, and 730d.
For the older M47 and M57 mills we carry EGR blanking plates and blank kits across the E46, E60, and E87 through E93, plus an 8mm blanking plate kit for the E38, E39, E46, and E53.
There is also the M47N2/M57N2 EGR valve repair tool for freeing stuck valves, and the EGR cooler delete kit that closes the thermostat circuit at the valve cover. These are delete parts, so read the legal note below.

Will a 335i camber kit, lift kit, E30, or E36 part work here?

No. A 335i camber kit and a lift kit are suspension parts, and we do not carry BMW suspension, coilovers, or lift components for the 3 Series.
We also do not stock E30 or E36 performance parts; the oldest chassis we cover is the E38, E39, and E46 with the 8mm EGR blanking plates, and the E46 and E60 diesels.
If you need camber plates, lowering springs, or a lifted setup, a BMW suspension specialist is the right call. Our catalog is EGR, cooling, and oil-separator hardware only.

Can I put a 330i intake manifold on a 325i, or upgrade the E90 intake manifold?

The 330i intake manifold on a 325i is a known M54 swap, since both the 325i M54B25 and the 330i M54B30 use the same bolt pattern and the 330i manifold flows better. It is a genuine upgrade, but we do not sell the manifold or the swap gaskets.
Likewise, the E90 intake manifold upgrade and E90 intake scoops are not in this catalog.
Our E90 and F30 parts are the N54 and N20 catch cans, coolant flanges, and the diesel EGR kits, not intake manifolds. Source the manifold from a BMW parts specialist.

What materials are these BMW parts made from?

Every part is built from materials that survive underhood heat. The coolant flanges and catch can bodies are CNC-machined from 6061-T6 billet aluminum, and the EGR delete and blanking plates are 6061-T6 billet or T304 stainless steel.
All sealing surfaces use high-temperature Viton O-rings and gaskets, the welds are precision TIG, and the catch cans use braided stainless or high-temp silicone hose.
The coolant fittings are direct-fit replacements for OE 11537541992 and 11537544638. Nothing here is plastic where heat is involved, because that is exactly what fails on these engines.

Are these BMW 3 Series performance parts street legal?

It depends on the part. The oil catch cans and metal coolant flanges are 50-state street-legal maintenance and repair upgrades that remove or bypass no emissions device, so they are fine for a daily-driven 3 Series.
The EGR delete, cooler delete, and blanking plate kits for the M47, M57, N47, and N57 diesels are emissions deletes, and they are for competition and closed-course off-road use only, subject to your local jurisdiction and the fitment notes above. Confirm your chassis and engine code before ordering.
Every order includes free shipping, is backed by a 1-year warranty, and comes with our 45-day return policy.