1991-1993
S13 Silvia & 180SX 202 hp @ 6000 rpm
Garrett T25, 0.64A/R Exhaust, 203 lb-ft @ 4000 rpm
0.80A/R Compressor
High-port head, 370cc/min injectors
Red valve cover
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1994-1998
S13 180SX 202 hp @ 6000 rpm
Garrett T25, 0.64A/R Exhaust, 203 lb-ft @ 4000 rpm
0.80A/R Compressor
High-port head, 370cc/min injectors
Black valve cover, flat on top
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1994-1998
S14 Silvia 217 hp @ 6000 rpm
Garrett T28, ball bearing 0.64A/R Low-port head, VTC variable intake, 203 lb-ft @ 4800 rpm Exhaust, 0.60A/R T04B Compressor cam timing 370cc/min injectors that peaks at cylinder No. 3
Black valve cover with a hump
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1999-2001
S15 Silvia 247 hp @ 6400 rpm
Garrett T28 ball bearing, 0.64A/R Low-port head, VTC variable intake
202 lb-ft @ 4800 rpm Exhaust, 0.60A/R T04B Compressor cam timing, 444cc/min injectors, better materials in turbo and better wastegate flow design that peaks at cylinder No. 3
Black valve cover with a hump
(manual trans only)