Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil, the spark plug is not burning the air/fuel mixture properly, and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code, but not always a check engine light. A misfire code may be related to an ignition coil, but could be from other things as well. Sometimes, a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.
Show More Show Less
True BMW performance, durability, and attractive weight advantages with innovative features place the Active Autowerke BMW F3x 335i exhaust in a class of its own. And now Active Autowerke has developed Gen 2 of this model which has been enhanced to take advantage of the OEM valve system. This system is constructed from 100% Brushed 304-stainless steel and features adjustable brushed Active Autowerke double-walled tips. And now the improved sound becomes more pronounced when the valve is opened by the ECU. Rather than creating a complete exhaust system, Active Autowerke opted for a compact design built in a smaller package to deliver more value. The Active Autowerke F3x 335i Gen 2 BMW Rear Exhaust System provides an increase in horsepower, better sound and appearance making it the choice for the avid BMW enthusiast. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Our innovative muffler can design provides maximum volume with the exhaust valve open for a true sport sound. This exhaust delivers a wide-open sound, a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out nonintrusive with a rich mellow tone with the valve closed. Just like replacing the BMW factory rear exhaust, the Active Autowerke BMW Performance rear exhaust does it in much the same way, if not better by using a much beefier, heavy-duty TORCA style exhaust clamp. TORCA clamps are known for their strength and sealing capabilities to make that tight seal. Other features like height-adjustable mounting tabs make this exhaust easy to install. Key Features: Large mandrel bent piping for maximum flow Uses factory valve system for maximum exhaust sound Durable, Brushed 100% 304 stainless steel for durability Double-walled signature brushed, black or carbon stainless tips Adjustable Tips with Embossed Active Autowerke Logo Improved power & torque throughout entire RPM band Gains of 12-15 HP over stock configuration Tight seal with use of TORCA style exhaust clamps Height adjustable mounting brackets make installation easy Factory curb weight 27.0 Lbs, Active 335i weighs 22.0 Lbs Fitment for Coupe, Convertible and Sedans Complete illustrated instruction manual Two-year warranty Applications: BMW F30 335i, xi (Sedan) BMW F32 435i, xi (Coupe) BMW F33 435i, xi (Convertible) BMW F36 435i (Coupe)
Show More Show Less
These speed sensors are an important part of your ABS system. A faulty speed sensor can cause a brake warning light in your instrument cluster, and failure of the anti-lock brakes and traction control system. Replacing a faulty sensor will restore operation and keep your car's wheels from spinning or skidding underneath you.
Show More Show Less
True BMW performance, durability, and attractive weight advantages with innovative features place the Active Autowerke BMW F3x 335i exhaust in a class of its own. And now Active Autowerke has developed Gen 2 of this model which has been enhanced to take advantage of the OEM valve system. This system is constructed from 100% Brushed 304-stainless steel and features adjustable brushed Active Autowerke double-walled tips. And now the improved sound becomes more pronounced when the valve is opened by the ECU. Rather than creating a complete exhaust system, Active Autowerke opted for a compact design built in a smaller package to deliver more value. The Active Autowerke F3x 335i Gen 2 BMW Rear Exhaust System provides an increase in horsepower, better sound and appearance making it the choice for the avid BMW enthusiast. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Our innovative muffler can design provides maximum volume with the exhaust valve open for a true sport sound. This exhaust delivers a wide-open sound, a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out nonintrusive with a rich mellow tone with the valve closed. Just like replacing the BMW factory rear exhaust, the Active Autowerke BMW Performance rear exhaust does it in much the same way, if not better by using a much beefier, heavy-duty TORCA style exhaust clamp. TORCA clamps are known for their strength and sealing capabilities to make that tight seal. Other features like height-adjustable mounting tabs make this exhaust easy to install. Key Features: Large mandrel bent piping for maximum flow Uses factory valve system for maximum exhaust sound Durable, Brushed 100% 304 stainless steel for durability Double-walled signature brushed, black or carbon stainless tips Adjustable Tips with Embossed Active Autowerke Logo Improved power & torque throughout entire RPM band Gains of 12-15 HP over stock configuration Tight seal with use of TORCA style exhaust clamps Height adjustable mounting brackets make installation easy Factory curb weight 27.0 Lbs, Active 335i weighs 22.0 Lbs Fitment for Coupe, Convertible and Sedans Complete illustrated instruction manual Two-year warranty Applications: BMW F30 335i, xi (Sedan) BMW F32 435i, xi (Coupe) BMW F33 435i, xi (Convertible) BMW F36 435i (Coupe)
Show More Show Less
The camshaft position sensor communicates the position of the camshaft to the computer. This helps the computer to calculate proper spark and fuel control. If you're struggling with CELs, hard starts or no starts, stalling, and/or a rough idle, you may need to replace the cam position sensor.
Show More Show Less
This is the crankshaft position sensor. It provides information for the ECU. A faulty sensor can cause issues with timing adjustment and limit performance and vehicle operation. Replace your sensor with a high-quality Hitachi sensor to restore peak performance.
Show More Show Less
Wheel speed sensors are an important part of your ABS system. A faulty speed sensor can cause a brake warning light in your instrument cluster, and failure of the anti-lock brakes and traction control system. Replacing a faulty sensor will restore operation and keep your car's wheels from spinning or skidding underneath you.
Show More Show Less
