PKH16TT Denso Spark Plugs Twin Tip A true world first, DENSO's patented Twin Tip (TT) Spark Plugs feature a nickel centre & a 'twin' protruding ground electrode with a slimmer 1.5mm diameter. This highly ignitable, durable technology achieves ignition efficiency closer to DENSO's premium Iridium ranges, without expensive precious metals. Aimed at drivers seeking fuel savings & reduced emissions along with responsive, reliable ignition performance, DENSO's TT Spark Plugs are suitable for LPG as well as petrol engines. The range is also highly consolidated: only seven part references offer enough applications to cover 80% of the top selling European cars. The above email & any files attached are confidential & may also be privileged or protected by other legal rules. If you are not the intended recipient & have received this email in error please notify the sender immediately, & delete the message from your computer; you should not copy the email or use it for any purpose, or disclose its contents to any other person: to do so may be unlawful. motorcyclesparkplugs, carsparkplugs, sparkplugcrossreference, gsparkplug are trade names of The Green Spark Plug Co Ltd.