4ejsmith
NAXJA Forum User
- Location
- Lancaster/ACTON
Last edited:
the big difference i found was throttle crispness and response - man it really feels so much better underfoot! I do have a banks header, 2.5 exhaust, flowmaster dumped, KandN intake and some other mods but compared to my other XJ with a stock tb i really can feel the difference and that one has a cat back flow exhasst... it really wakes up the 4.0 - great mod... as far as MPG who knows - much better acceleration though!