I have a 4x4, crew-cab, 6.0L, 4 speed auto with 4:10 rear and tow a fiver that top weight is about 8k. What bolt on result n the best bang for the buck. Going out west concerned about altitudesu
Modify the exhaust system .. check to make sure it will still pass emission standards in the state you live
Thanks for your response. I been trying to read about the different bolt-ons from chips to air in-take to exhaust.
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