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Dear All,

As per topic,im a newbie in the car modding section.Im totally confused on the proton 1.8 DOHC engine series as in to the performance.Ive spoken to a few ppl(including mechanics) n they all claim that the 1997 manufactured ones are more powerful,no matter putra or wira c99 than the others....but when i look at it at a glance it all seems to look n have the same items....all in all im comparin the wira1.8,putra and the Gti.....all same looking engine bay...so whats the diff when...