dflw_99

i recently put some aftermarket tires 31X10.50R15 on my 2000 frontier xe auto, the thing is that i have lost a lot of my top end exsepically in top gear between 1500 and 2000 once it goes past this it does better but not much. Just wondering what i could do for more pormance in top gear,

can someone tell me a cheap and/or the better and more expensive and what you would recommend

besides telling me to buy a new one

thx