90-99 dsm. $350
OEM springs are ok for 272.
Adv. Dur.: 272/272
Dur @ .050: 212/212
Lift (in): .401"/.381"
Lift (mm): 10.18/9.66
90-99 DSM titanium valve spring/retainer kit $199
Suby EJ25 $649
OEM springs are ok for 272.
Adv. Dur.: 272/272
Dur @ .050: 220/220
Lift (in): .400"/.400"
Lift (mm): 10.16/10.16