ISR Performance Pro Series Rear Upper Control Arm Nissan 240sx 1989-1998 S13/S14 ForesterXT_2014-2018 This blow off valve is

This blow off valve is unique in the fact that you can adjust the volume electronically from inside the car by changing the bias between re-circulation and venting to atmosphere

Ceramic - Front - D721 replacement

5 horsepower at 5

Increased torque capacity over stock is 96 percent

4" Inch inner diameter tubing

ISR Performance Pro Series Rear Upper Control Arm Nissan 240sx 1989-1998 S13/S14 ForesterXT_2014-2018 This blow off valve isPart #: IS RUCA NS134 PRO After Years of Success with the Basic Street Series Suspension arms ISR Performance has released a higher end line of suspension providing better control and overall performance. These are a great Arms for the street and track use. Pro Series Improvements Japanese Spherical Rod Bearings Larger Rod Ends Rod End Dust Boots Thicker Materials Add Bracing Note: ISR orders might take a day of processing. If you need it sooner,