SPL is a japanese acroynm for Special or Custom.

so naturally SSPL is Secret Services special , or a SS part that not many other places offer.

like custom stainless intakes, custom stainless hot pipes, custom downpipes and what not, as well as turbo kits that we offer, they get the SSPL name.

mid 13's (look at the air fuel curve again) is what the cars make the most power on. Look at the stock ecu!! it's pitifully lean everywhere else. so if anything we are going richer than what Nissan themselves think is safe. and remember, it's only a 9.5:1 compression normally aspirated motor, nothing spectacular.


we have put the air fuel curve everywhere, and they make the most power at mid 13s.