Turbosmart BOV RacePort Blow Off Valve Spring (15 InHg) – Green - TS-0204-3105 15" Diameter 5 are more concave than

5 are more concave than smaller width fitments (The photo on the left is of an 18×9

The six-point configuration incorporates a comfortable dual 2" wide moustache bar crotch strap design that is adjustable to 24" in length

Factory piping from the air-box is replaced with 3" tubing to maximize airflow

Turbine A/R: 0

Turbosmart BOV RacePort Blow Off Valve Spring (15 InHg) – Green - TS-0204-3105 15" Diameter 5 are more concave thanTurbosmarts springs are designed to work with our Plumb Back, Dual Port and Supersonic blow off valves. They offer a wide range of spring rates to suit your driving style and application. Turbosmarts springs are made from high quality materials and are designed to maintain the peak performance of your blow off valve under the most extreme conditions. Choose from our selection of Turbosmart springs to get the perfect fit for your car and the best