HKS Super Sequential BOV V.4 - Mitsubishi EVO X
In 1994, HKS introduced the first Sequential Blow-Off Valve that blazed the auto industry with a unique pull-type sequential valve structure and a differential pressure control system. This advanced system allowed for a broad operation range from low to high boost. This pull-type relief design ensures stable operation regardless of boost pressure.
Super SQV 4 features include a nickel-plated, die-cast metal secondary valve, which is waged to the primary valve, a stainless steel C-Clip and spring to increase sealing and durability. To assure buyers that they are purchasing an authentic HKS product, the new design incorporates a holographic HKS logo on the back of the valve, as well as additional HKS logos cast onto the body structure.
Vehicle Fitments:
| Year |
Make |
Model |
Submodel |
| 1973 - 1986 |
Buick |
Century |
Base |
| 1975 - 1986 |
Buick |
Century |
Custom |
| 1980 - 1984 |
Buick |
Century |
Estate |
| 1985 - 1986 |
Buick |
Century |
Estate Wagon |
| 1976 |
Buick |
Century |
Indianapolis 500 Pace Car |
| 1978 - 1986 |
Buick |
Century |
Limited |
| 1973 - 1975 |
Buick |
Century |
Luxus |
| 1984 |
Buick |
Century |
Olympia Limited |
| 1975 - 1979 |
Buick |
Century |
Special |
| 1978 - 1981 |
Buick |
Century |
Sport |
| 1986 |
Buick |
Century |
SS |
| 1983 - 1986 |
Buick |
Century |
T-Type |
| 2005 - 2008 |
Buick |
LaCrosse |
CX, CXS, CXL |
| 2008 |
Buick |
LaCrosse |
Super |
| 1978 |
Buick |
LeSabre |
Custom |
| 1979 - 1980 |
Buick |
LeSabre |
Limited |
| 1978 - 1980 |
Buick |
LeSabre |
Sport, Base |
| 1978 - 1980 |
Buick |
Skyhawk |
Base, S |
| 1980 |
Buick |
Skyhawk |
Designers' Accent Edition |
| 1979 - 1980 |
Buick |
Skyhawk |
Road Hawk |
| 2011 - 2014 |
Mitsubishi |
Lancer |
ES Sportback |
| 2008 - 2015 |
Mitsubishi |
Lancer |
ES, DE, Evolution MR, Evolution GSR, GTS |
| 2009 |
Mitsubishi |
Lancer |
Evolution RS, Special Edition |
| 2010 |
Mitsubishi |
Lancer |
Evolution SE |
| 2014 |
Mitsubishi |
Lancer |
Evolution, Limited Edition |
| 2011 - 2015 |
Mitsubishi |
Lancer |
GT, SE Sportback, GT Sportback |
| 2010 - 2011 |
Mitsubishi |
Lancer |
Ralliart Sportback, Evolution MR Touring, GTS Sportback |
| 2015 |
Mitsubishi |
Lancer |
SE Limited Edition, Evolution Final Edition, SE Limited Edition Sportback |
| 2009 - 2015 |
Mitsubishi |
Lancer |
SE, Ralliart |