Either an S4 T2 or an S5 T2 is going to be the most powerful . an S4 GTU has T2 suspension , LSD etc but a N/A motor, the S5 GTUs is the best car out of the N/A models , the S4 SE model is 4- lug and has no LSD , people tend to stray from this model , but you can put 5-Lug suspension and the 4 piston front brakes on .

The S5 T2 is 8.5:1 compression while the S4 is 8:1 compression . For mild mods stick with the S5 its newer and has the cool tail lights , mirrors etc .

They are pretty reliable but not that great on gas . Just keep throwin a little marvel mystery oil in it every once in awhile and always run 93 in a T2 87 in a N/A .

The rear diff mounts tend to go out on these cars so make sure thats in good order its 200 for a Mazdaspeed diff mount and the time to change it .

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