148whp (NA)

That's about 176bhp after whp conversion
200bhp or more is possible if owner go for head cyclinder job, dyno day spec as below

NA Ignis Sport M15A @ 87mm x 83mm
Custom Made 12.0 Pistons
Greddy Cams
Monster Sport Valve Springs
Custom Made Intake Manifold
Custom Made 65mm Throttle Body
Monster Sport 421 Twin Catalyst Header
Stock Mid Pipe
Stock Muffler
Stock M15A Cyclinder Head
Greddy Emanage Ultimate

Refer back to 08 March 2011 Intake Manifold post for history

Oversize Head Job

Beautifully done by Top Fuel Japan on its 1.7L block