Anybody got one for the 4.0? Thinking of buying it. That mod bargains site has it for like $95

 

Don't buy it!!!! It won't do anything. It will only give you a whistling sound.

 

yes been even dyno tested not worth it.. like the person above unless you want a whistling sound its the only thing its good for

 

Would make a nice paper weight!

 

Well I'm thinking of buying both that and the JBA headers for it. Is it really that worthless?

 

Summitracing has a section for gas mileage and suggests one. They are marketed as HP increase. The purpose is to increase the air speed as it enters the intake manifold, but that 1 inch just isn't going to make the big of a difference. I would more look into decrease the intake air resistance and getting cold air.

 

Yes it is. Get the headers and save up for a programmer.

 

They work on Jeeps and stuff just not our trucks.

 

Already got the programer. Bought the superchips one after I realized I couldn't spin my 36's in the freaking rain. I was twisted so I went right home and ordered it up. Besides it's real nice knowing how fast you're going instead of always having to gess at it.