long story shor ti been drivign with mismatched coils and lviing with a slight misfire for awhile, a friend got me some free coils from a series 2 N/A, obviously i got an */C, so i put em in, my engine is much smoother, no misfire, but now it feels real sluggish, thoughts, ideas? i was thinking either theres a difference between */c and n/a or maybe these coils are just old

There is no difference between n/a & sc.

SII 67 coils are a slight upgrade from L36 coils.

l36 would be the series 1 sc? i thought the series 2 n/a was the l27, so as long as theyre series 2 coils they shud be the same?

L67 is SI and SII supercharged. L27 is SI NA, L36 is SII NA.

All SI (L27 and L67) and SII NA use the same coil. SII L67 got better coils. You want SII L67 coils.

97 and newer L67 coils are 'hotter' than L27, L36, and 91-96 L67 coils.

so what were saying Nerv is that the coils that you got free are just like stock replacements for you

No, you got NA coils, didn't you?

yea i got n/a coils, they should hold me over for now until i have the $ for new ones

O rly??? Never heard this before. Just curious where you got this info from. Interesting...

FWIW, I have my stock L36 coils on my car. It does make sense that they might not have as much spark as the L67 coils because I can't run as large of a gap as others with the same setup. However, I have had no issues with power, and swapping them back and fourth should make no difference as far as being "sluggish". You may possibly get a miss if you go from the stronger coil to the weaker one, but nothing a little spark plug gap can't fix.