Originally Posted by jadcock

Although the engine in the trucks is the same as some of the 240SXs (the earlier cars, with the SOHC motors), some items (like the intake system) are different and particular to the truck, and I'm sure more aftermarket companies figure if you're after performance, you're not driving a 4-cylinder truck. I understand you can get performance cams (like from NISMO). I think they'd probably take away low(er) end torque in exchange for more hp. I have no experience with them, though.

If you can remember or figure out where you bought those 6E-11 plugs, I'd appreciate you letting me know, because I'd like to get NGK plugs back in the truck. Nobody I talked to would even order 4 $1 plugs for me. I drive the thing at higher engine speeds than I'm used to with domestic V8s, so I figure having a colder plug isn't a bad thing (although I'm sure the "standard" plug is colder than an equivalent domestic plug anyway). All my driving is at least 10-15 miles at a shot, so I don't have any fouling problems with the colder plugs. The (Nippon)Denso sparkers aren't running bad or anything, I'd just like to have NGK plugs in there, just so I know I'm getting performance at least as good as OE.