NGK FR7BHX-S Spark Plug NGK Ruthenium HX Spark Plug

I've been running BKR7EIX or PFR7 plugs in EA888 VW engines for years with great success. Decided to try these as they are supposedly better at around the same cost or less. I've never had a spark plug make a substanial difference in the way an engine ran but these honestly surprised me. With the correct gap, in this case .027 for my turbo swapped MK6 VW the engine runs better than ever. I noticed better throttle response, especially on down shifts, and a slight increase to mpg's. Overall a great, easy regular maintance item.

I installed these into my 1996 3.4L V6 TRD supercharged Tacoma 3 weeks ago. So far, they have stood up to 13 psi of boost and not complained. The Tacoma gained 3mpg (has been17mpg for 20 years), and idles much smother then with Iridium plugs did. At this price point, they seem to be a superior design.My truck currently has:TRD supercharger, Headers, Haltech 2500 ECU, 600 cc injectors, and aluminum flywheel.

This new electrode coating works great and powered my Nissan SR20VE well. Unfortunately, a bearing failure on #1 cylinder sent the piston up though the plug and blew the big end through the block. Game over!

I picked these up and installed them in my 2013 Cruze LT (1.4 Turbo). They replaced the old plugs with 90k miles, car runs great. Very smooth, a bit better acceleration and gas mileage.These are definitely pricier than the stock ones but definitely better. NGK has done it again with advancing spark plug tech in an industry where we think it has all been thought out.At the end of the day, I think these are probably the best for small turbo engine vehicles.

According to NGK, this is suppose to be a upgraded version compared to their standard NGK spark plug. I just replaced my spark plugs about 1.6 years ago. But I am rebuilding my engine. Well, my cylinder head. I want my new valves to have a nice spark to make sure they get rid of as much engine exhaust as possible. Can't wait to try these!!