1999 1.9L in a 1998 SL2

It should bolt right in and run fine as there was no big chages in engine or its controls.

----------------- The SnoMan

I would agree - but in 99 I believe there WERE sizeable changes made. They made the change to the roller-valvetrain narrower head in '99, but not for the entire year if I recall correctly. This could be made to work in a '98, but it would require a lot of the '99's accessories which are different (exhaust manifold, intake manifold, throttle body, air intake system, etc).

You may be able to find more info in the TSN swap guide:

THis would be easy to confirm with a visual too.

----------------- The SnoMan