The Turbosmart IWG-75 internal wastegate actuator replaces the OEM unit on 1997-2007 WRX models equipped with a TD04 turbo. It features stiffer springs and a larger diaphragm area to resist premature opening, delivering faster boost response. Constructed from billet aluminum with heat‑resistant components, it offers superior durability over the standard pressed‑steel actuator. The unit includes a mounting bracket and all necessary fittings for a direct bolt‑on installation. Enhanced boost control results in smoother power delivery and improved torque throughout the rev range.

                  
                                          
                        
Pressure Rating
                        
7 psi
                      
                                          
                        
Material
                        
Billet aluminum
                      
                                          
                        
Compatible Turbo
                        
TD04 (1997-2007 WRX)
                      
                                          
                        
Spring Type
                        
Stiff performance springs
                      
                                          
                        
Diaphragm Area
                        
Larger than stock
                      
                                          
                        
Included Components
                        
Actuator, mounting bracket, fittings
                      
                                          
                        
Weight
                        
3 lb
                      
                                          
                        
Finish
                        
Black anodized