if you dont have the balls to risk practicing with the cops around like most of us learned then...... keep it on the track....
but reegardless stay safe...
do what you want bro but iv been ase certified for to long to listen to ur noncense n iv been in this scheen longer than both of you boys... so watch who you call a new comer vas....
also iv had sr's for 3 years personaly n been working on turbo cars in general for 5.. so fule this stock...
when your maf goes bad your car will not rev over 2000rpm n it will billow black smoke
douch go with the 20 or 30 dollar spark plugs 1st ul be real happy... im not ase certified for no reason