What is the best performance chip or programmer for 2001 jeep cherokee 4.0?

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.

 

[Eryn]

Does anybody know what performance chip or programmer will give me the most noticable horsepower gains and improved throttle response?
I have a 2001 jeep cherokee 4.0 I6, 2 wheel drive, I don't take it off road and I don't tow with it.

 

[miguel]

be carfull,if the mechanic dosent install it exacly right itll break ur car.