stinkboy

can anyone say for sure or have some sort of proof that the denso iridium plugs are better performance plugs than the bosch platinum 4+ plugs. i realize that the bosch plugs cost half as much as the denso plugs. i currently have the bosch, but was interested in the denso plugs. i am planning on putting a venom nos system in my car and i believe the denso plugs will have an impact at that point. also jet makes a chip to override the ecu on the car to change the fuel mix and redline. i also believe that the denso plug might have an affect if using the jet chip. please leave your thoughts. i know this is an old question, however there are newer versions of the tl and newer users to this forum. also most people dont mod their car right off the lot. i personally only started three months ago. items on my list are new strut/shocks to go with the h&r sport springs, jetchip mod computer chip and a venom nos system.