Ignitionability, durability, anti-insulation are all reinforced. HKS has made the best plug for both tuning engines and stock engines.
- Increased Ignition Performance
Decreased voltage requirement strengthens ignition performance under harsh conditions like lean mixture or high boost pressure. - Improved Durability
New material and design improve durability which allows for use under hard combustion conditions like continuous high load during circuit driving or aggressive tuning.
* Improper combustion condition and wrong heat range selection may cause damage to the spark plug. - Decreased Carbon Deposits
Thermal edge and spark support gap help prevent carbon buildup for better ignition under various combustion conditions.
Vehicle Fitments:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015 | Acura | RLX | Elite, Tech |
| 2014 - 2015 | Acura | RLX | Sport Hybrid SH-AWD, Base |
| 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, CXL, CXS |
| 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 |
| 2008 - 2012 | Honda | Accord | EX, LX-S, LX, EX-L, LX-P |
| 2012 | Honda | Accord | HFP |
| 2011 - 2012 | Honda | Accord | SE |
| 2008 | Mercedes-Benz | C300 | Sport, 4Matic, Luxury, Base, 4Matic Sport, 4Matic Luxury |
| 2011 - 2013 | Mini | Cooper | All Black |
| 2007 - 2015 | Mini | Cooper | Chili, Pepper, Salt, S, S Hot Chili, S Salt, Base, S Chili |
| 2008 - 2014 | Mini | Cooper | Clubman, S Clubman |
| 2012 - 2015 | Mini | Cooper | Coupe, Roadster John Cooper Works, Roadster, Coupe John Cooper Works, Coupe S, Roadster S |
| 2013 | Mini | Cooper | Green Park, Bayswater, S Hyde Park, S Green Park, Baker Street, S Bayswater, S Oxford Street, Hyde Park, Oxford Street, John Cooper Works GP, S All Black |
| 2010 - 2015 | Mini | Cooper | Hot Chili |
| 2008 - 2015 | Mini | Cooper | John Cooper Works |
| 2009 - 2014 | Mini | Cooper | John Cooper Works Clubman |
| 2013 - 2015 | Mini | Cooper | S HighGate |
| 2010 | Mini | Cooper | S Mayfair, Camden, Laurel, S Camden, S Laurel, Mayfair, Early Grey, Ray |
| 2008 - 2009 | Mini | Cooper | S Sidewalk |
| 2015 | Mini | Cooper | S Sport |
| 2012 - 2013 | Mini | Cooper | Yours, Classic, S Clubman Hampton, S Redcliffe, S Yours |
| 2011 - 2014 | Mitsubishi | Lancer | ES Sportback |
| 2015 | Mitsubishi | Lancer | Evolution Final Edition, SE Limited Edition Sportback, SE Limited Edition |
| 2009 | Mitsubishi | Lancer | Evolution RS, Special Edition |
| 2010 | Mitsubishi | Lancer | Evolution SE |
| 2014 | Mitsubishi | Lancer | Evolution, Limited Edition |
| 2011 - 2015 | Mitsubishi | Lancer | GT Sportback, SE Sportback, GT |
| 2008 - 2015 | Mitsubishi | Lancer | GTS, DE, Evolution MR, ES, Evolution GSR |
| 2010 - 2011 | Mitsubishi | Lancer | Ralliart Sportback, GTS Sportback, Evolution MR Touring |
| 2009 - 2015 | Mitsubishi | Lancer | Ralliart, SE |
| 2008 | Mitsubishi | Outlander | Base |
| 2010 - 2012 | Mitsubishi | Outlander | GT, Limited |
| 2007 - 2012 | Mitsubishi | Outlander | LS, ES, XLS |
| 2008 - 2012 | Mitsubishi | Outlander | SE |