I live in TX and have 4.10's with 33 inch tires. I don't think the Jeep is a speed demon but don't think it is horrible right now. Question I have is if I add a superchip programmer with 35's would I still be happy. I plan on adding km2 which are about 34 inch and right now my tires measure 32. Will I notice much of a difference in power just going up 2 in and adding a programmer. Thoughts

 

I have 4.10's, 33" tires (actual measurements) and I run the Superchips. I think you'll notice a difference no matter what size tire you are running. I can't say that the SC will make up the power loss difference for when you upgrade to 35's but without it, it would suck more for sure!

 

I have a 4 door rubi auto, just installed 35x12.50 BFG Km2's , my 35x12.50x17 are about 34.8 i did notice a diff but it is very liviable, no regear in the future unless it changes my mind once i get my front and rear bumpers on!

P,S i have the superchip prodrammer but have it set on stock, once i put my bumpers on , i will prob change the stock setting then determine if i need to regear... hope thie helps

 

Just depends on the weight of the tire, as I would imagine some 33s may even weigh more than some 35s. Can you look up the weight of the KM2s and compare? If it's only a slight difference then you may not notice much. But if it's a lot..........well....

All I know is that when I installed the Flashpaq in mine, it gave me more power with my 33s and new wheels, than I had with the dinky stock tires and wheels. I don't know what the weight difference is tho.........I should check that someday.

Oh and btw........I do also have an Airaid CAI and that helps a little too.