If you’re a proud owner of a 2008-2013 BMW 128i or a 2006-2013 BMW 3-Series, you know the importance of maximizing your engine's potential. The Injen SP1121P Cold Air Intake is here to help your engine breathe easier and unleash the performance you’ve been longing for. With Injen's reputation as the pioneer of tuned air intake systems, this intake is engineered to enhance your driving experience, providing both power and sound that you can feel.
The SP series represents Injen's flagship line of traditional aluminum cold air intakes. This system is packed with patented technologies, including:
Thanks to these innovations, you can expect dyno-proven gains of up to 12 horsepower and 11 lb-ft of torque, all while maintaining a safe air-fuel ratio throughout your power band. Best of all, there’s no additional tuning required, making this a straightforward upgrade for any DIY enthusiast.
The heart of the SP1121P is its 6061-T6 aluminum intake tubing, designed for a smooth, uninterrupted airflow path. This not only boosts performance but also enhances the aesthetics under your hood. Plus, the intake includes a custom heat shield specifically tailored for your BMW, ensuring that your engine gets the coolest, densest air possible.
Equipped with a fully serviceable Injen SuperNano-Web dry air filter, this intake maximizes filtration surface area, allowing for greater airflow and unbeatable filtration capabilities. The result? An aggressive, throaty engine tone that truly sets your BMW apart from the rest. Whether you're cruising down the highway or hitting the track, you'll appreciate the audible difference.
The Injen SP1121P is a direct fit for the following models:
BMW 328i owners have reported noticeable improvements in throttle response and engine sound after installing the SP1121P. One owner mentioned, "After installing this intake on my 2011 328i, the car feels more alive with a deeper growl that I love. Plus, the install was straightforward, and it fits perfectly!"
Ready to enhance your BMW's performance? The Injen SP1121P Cold Air Intake is the upgrade you’ve been waiting for. Experience the difference today!
Other Part Numbers:
Injen #injSP1121P
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2008-2013 BMW 128i |
128i | 2008-2013 |
|
2006 BMW 325i |
325i | 2006 |
|
2006 BMW 325xi |
325xi | 2006 |
|
2007-2013 BMW 328i |
328i | 2007-2013 |
|
2007-2008 BMW 328xi |
328xi | 2007-2008 |
|
2006 BMW 330i |
330i | 2006 |
|
2006 BMW 330xi |
330xi | 2006 |
Injen is highly recognized in the automotive industry. The company started in 1991 and specializes in manufacturing high-quality air induction products. The company has become the go-to brand by multiple import tuners and has since become an automotive icon in the industry.
Years of ExperienceFor more than three decades, the company has created dozens of patents and thousands of new products. All of their products are dyno-tested to ensure that it provides optimum performance to the vehicle it is applied to.
Injen offers a variety of products ranging from intake systems, intercoolers, exhaust systems, and other performance parts. All their products are made out of high-quality materials and are designed by the industry’s top designers and engineers. This enables them to create products that are not only functional but adds an aesthetic value to the vehicle. Even up to now, the company never stops in improving its product. Hence, they are a favorite of tuners who wanted to have the best.
Purchase Injen Products at Vivid RacingIf you are looking for products that provide performance gains and are tried and tested, then Injen is the brand for you. They have been used by thousands of enthusiasts worldwide and have provided them high-performance products they truly deserve. The company has one of the most comprehensive lists of products that applies to most vehicles available in the market. You can never go wrong with Injen.
Visit Vivid Racing and check out their list of products that would fit your specific needs.

Injen Technology offers a Limited Lifetime Warranty to the original purchaser against defects in material and workmanship on all intake systems excluding the filter element. Injen Technology will replace at no charge, any intake pipe considered by Injen Technology to be defective. The warranty is void if the warranty card is not returned to Injen Technology within the first 30 days of purchase. Any and all warranty coverage is limited to the repair or replacement of the defective part only, at Injen Technology.s discretion. Proof of purchase is required. The warranty does not cover incidental or consequential damages, nor does it cover the cost of installation or removal of the defective part or its replacement.
EXHAUST WARRANTY
Injen Technology offers a one-year warranty to the original purchaser against defects in material and workmanship on all exhaust systems. Injen Technology will replace at no charge, any exhaust system considered by Injen Technology to be defective. Any and all warranty coverage is limited to the repair or replacement of the defective part only, at Injen Technology's discretion. Proof of purchase is required. The warranty does not cover incidental or consequential damages, nor does it cover the cost of installation or removal of the defective part or its replacement.
AIR INTAKES AND ACCESSORIES
Injen Technology offers a Limited Lifetime Warranty to the original purchaser against defects in material and workmanship on all intake systems excluding the filter element. Injen Technology will replace at no charge, any intake pipe considered by Injen Technology to be defective. The warranty is void if the warranty card is not returned to Injen Technology within the first 30 days of purchase. Any and all warranty coverage is limited to the repair or replacement of the defective part only, at Injen Technology's discretion. Proof of purchase is required. The warranty does not cover incidental or consequential damages, nor does it cover the cost of installation or removal of the defective part or its replacement. All warranty items must be sent freight prepaid with a valid RMA (Return Merchandise Authorization) number and copy of original invoice.
SES INTERCOOLERS AND EXHAUST SYSTEMS
Injen Technology offers a one-year warranty to the original purchaser against defects in material and workmanship on all exhaust systems. SES Intercooler and exhaust systems that have been installed will not be eligible for return under any circumstances. Defective parts will be replaced or repaired as deemed necessary by Injen Technology. All other warranty issues will apply as indicated under the Air Intake section. Most exhaust and Intercooler system installations may require a lift and or specialized tools. Due to the installation complexity of automotive exhaust and Intercooler systems, Injen Technology recommends that a qualified technician perform the installation. Most local Tuner or exhaust and muffler shops offer professional installation.