For most late model BMW 335i, the best horsepower and performance gain per dollar is achieved through a performance software or chip upgrade. There are many different manufacturers out there who offer software downloads, or chips to increase power, torque and also usually remove the speed limiter or governor and raise the red-line. For cars made after 1996 in the US this is critical. Until the software or chip is modified, a performance intake or performance exhaust will not result in any increased power for your 335i. The performance chip combined with an Air Intake & Exhaust will accomplish the following for your 335i.

• Engine will run seamlessly
• Maximum air input and output
• Air & Fuel Management

Now if you own a 335i your already thinking this car is expensive enough, how much will increasing the performance cost me. Well an easy answer to your question is if you do not have the funds to upgrade your 335i, wait and save, because only the best performance parts will do when it comes to modifying or altering a BMW 335i or any other model. The performance chip modification usually can run from about $350 up to thousands depending on what your goal is for the car. If you just want to add a little more kick to your 335i, then after the software upgrade, an exhaust or intake would be perfect, especially in the 335i because it already has tons of power, adding a little more will definately give you the satisfaction you are looking for.  The performance chips work by adjusting the settings the car usually runs on. The goal for the stock chip is to run as efficiently as possible on the 335i. With the performance chip it may be set to run to achieve more power rather than efficiency.

The horspower gains from the chip can range from 15-75 HP with the addition on an intake and exhaust upwards of 150 HP, these are great gains and given the performance of the stock 335i you will be very impressed how they all work seamlessly together making your 335i a monster under the hood.