gents,

I am looking to buy a set of headers, cats, cat-back, throttle body and tune for my 4.8is. I only found one header manufacture for the X5. I contacted them and they just sent me there price list. Check it out.

Headers: $4131.25
Cats: $4131.25
Mufflers: $2308.00
Tune: $1790.74

Does anyone know if the 4.4 share the same head design as the 4.8?

Thanks!
Ryan