HI, all Persona Driver ~

I plan to modify my car which some basic things

1.Spark Plug , plan to change to iradium, but the mechanic mention something about tat oil seal?? mean no suit for persona...piston easy to loose or something like tat...

2. Air Filter, any suggestion?

3. others? which can improve the performance?

THANKS

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Added on May 24, 2010, 8:26 pmand also brake pad....any suggestion???

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Added on May 24, 2010, 8:30 pmabout the gear oil for (MANUAL), i use 80w-90, now plan to use 75w-90 coz my gear really hard to change (higher to lower) any suggestion? can i use toyota brand???

This post has been edited by aun1986: May 24 2010, 08:30 PM