SKU: 2121067897

Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - Polished

Sale price$145.80 Regular price$162.00
Save 10%

Pay in installments of $40.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Injen 18-21 Subaru WRX STI H4 2.5L Turbo SP Aluminum Series Cold Air Intake - PolishedInjen Technology has done it once again with this new short ram air intake for the 2018 2021 Subaru WRX STI Equipped with the H4 2. 5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive

Injen Technology has done it once again with this new short ram air intake for the 2018-2021 Subaru WRX STI Equipped with the H4-2.5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive factory airbox and provides a engineered solution that allows that turbo to breathe deeply and produce it's full power potential with a simple drop-in install. To top it all off, no tune is required to get the power numbers noted!

  • Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
  • Injen's MR Technology provides massive power gains while maintaining A/F ratios
  • Includes custom heat shield specifically designed for this application
  • Smooth intake piping eliminates restrictions and improves airflow
  • Dyno Proven gains of up to 26 hp and 24 lb-ft. of torque
  • No additional tuning required and no check engine lights
  • Huge 3.250in mandrel-bent 6061-T6 aluminum intake tubing
  • Fully serviceable Injen SuperNano-Web dry air filter
  • Features Injen's patented MegaRam (MR) Technology
  • Replacement air filter part number X-1059-BB
  • Aggressive engine tone under full throttle
  • Injen Technology Limited Lifetime Warranty
  • Optional Hydroshield part number 1040BLK
  • Available in multiple finishes
  • Made in Pomona California, USA
  • Short Ram Air Intake Design
  • SP1208WB (Wrinkle Black)
  • SP1208WR (Wrinkle Red)
  • SP1208P (Polished)

This Part Fits:

Year Make Model Submodel
2018-2021 Subaru WRX STI Base
2018-2021 Subaru WRX STI Limited
2019 Subaru WRX STI S209
2018 Subaru WRX STI Type RA
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2121067897

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 6 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Dennis Ryan
Carnegie, US
★★★★★ 3
Broken suction cup mount broken
Style: Dual Dash Cam Without Card
One if the soction cup holder mount was broken and unuseable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
M
Verified Purchase
MSW
Belleville, US
★★★★★ 5
Extremely affordable and good quality for price
Style: Dual Dash Cam Without Card
This dashcam might not be the most advanced, but it 100% does the job you need it to. For the price, it's unbeatable. I got into an accident in November 2025 and this dashcam captured the incident clearly, allowing me to be paid out with my claim being 100% ironclad not-at-fault. If you're looking for a good dashcam that doesn't require an app to use or extensive wiring, this is the one you want.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
M
Verified Purchase
Mars
Grantham, US
★★★★★ 5
doesn’t come with a bag to store razor after use
This came charged and was easy to use. I love the double sided razor concept, it made it easy to shave upwards and down at once. The speed is amazing getting enough hairs each stroke. It made it easy to get a clean shaven look by simply holding the skin taut. The battery life was well, I used this for half an hour, and it remained speedy and effective. I also did not find that my skin got irritated. It just felt smooth afterwords but irritation wasn’t my biggest concern as I would have applied an aloe gel to soothe the area If i found any irritations. Overall the quality was nice. Although, I will say I was expecting a small bag to be able to set the razor in after shaving since it just came in the packaging.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
W
Verified Purchase
Wendy Moreland
West Palm Beach, US
★★★★★ 5
Buy it!
I had a Palm Perfect shaver YEARS ago & just happened upon it on Amazon one day. Glad I did! Works very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
S
Verified Purchase
saina m.
Port Orchard, US
★★★★★ 5
Does the job
Simple, does the job, but is pretty loud. It comes with a cable and a stand. Now, it does not leave you with a close shave so it’s best for maintenance or pre wax.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026

recommand products