Find Parts That Fit Your Vehicle

Emissions System

Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.


Sort By:

Genuine BMW EGR/Secondary Air Pump Block Off Plate - Multiple BMWs
Genuine BMW - Corporate Logo
Part#: 11121438086
In Stock
11% off MSRP $25.04
Free Shipping on orders $49 and up
11% off MSRP $25.04
Free Shipping on orders $49 and up
The Secondary Air Pump in a vehicle injects air into the manifold to recreate a lean condition which causes the catalytic converters to raise in temperature until they are at optimum efficiency. Some vehicles do not come equipped with EGR/SAI systems from the factory and instead use this plate. If the plate is corroded or missing, replacement may be necessary. Use with a new gasket to ensure a proper seal.
Show More Show Less
E82 135i N54, E9X 335 N54, E60 535 Vargas Upgraded PCV Valve
Vargas Turbo Technologies - Corporate Logo
Part#: VTT-N54-PCV
In Stock
Free Shipping on orders $49 and up
The crankcase oil vent system on the N52/N54 is one of its weakest and cheaply designed systems. We see crankcase vent issues on even stock engines but with more boost the problems are exponential. This Vargas upgraded PCV valve, and an oil catch can, are what the N54 engine needs and may alleviate most of your oil and boost leak issues. The PCV valve is supposed to let oil either return to the oil pan or pass through the intake manifold and get burned up in the combustion chamber. However, BMW used a weak plastic vent valve that doesn't seal well when under boost. Instead of  closing and venting the oil out of the intake, it's forced through this valve and into the intake and coating your valves with oil residue and carbon. Most boost equals more oil forcing its way by. This upgraded N54 PCV valve uses higher grade materials, including aluminum, to provide a better seal and prevent oil from entering the intake. It's an easy install and a must-have item when considering any turbo work.
Show More Show Less
OEM Bosch Oxygen Sensor - mounts before catalytic converter - E46 E39 E38 X3 X5 Z3 Z4
Bosch - Corporate Logo
Part#: 11781742050
In Stock
Free Shipping on orders $49 and up
This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8
Show More Show Less

OEM Bosch Universal 4-Wire Oxygen Sensor - Priced Each
Bosch - Corporate Logo
Part#: 15733
Expected Ship Date: 1-3 days
Free Shipping on orders $49 and up
Bosch Universal Oxygen Sensors are perfect for replacing faulty sensors throwing off a check engine lights and causing poor operation and low gas mileage. If you are looking for a cheaper option or are unable to get a hold of the sensor you need, you can reuse part of the original wiring harness to connect this high quality replacement.
Show More Show Less

Turner Baffled Oil Catch Can Kit - 8oz
Turner Motorsport - Corporate Logo
Part#: 022798TMS01-07KT
Inventory On Order, ETA May 28, 2021
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however, this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed/recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.
Show More Show Less