please help me in making this important decision? i`m planning of making an engine swap. my car is 2004 proton satria se with 4g15 using siemens vdo. i`m planning of using a potent mitsu n.a eng. which one is more reliable and cost effective? 4g91 = 120 hp
4g93= 140 hp
is it true? the difference is only 20 hp.....if im using 4g91 for sure i can speed alongside stock 4g93 with slight mod on my 4g91. also i will enjoy low fuel consumption and lower road tax. anybody with good advice pls help...
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