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I recently bought a 93 XJ and am looking at doing moderate modifications too it. One of the items I was looking at is a Poweraid Throttle Body Spacer. My question, Is it worth it? Does it do much for power and MPG as it claims?
I have a 94 xj, and I put the pwerdyne tbs on it. I def noticed a difference in the torque. But i utiliuze the tbs, I also fabricated a cold air intake. Yeah, I think it was worth the money. But as for the mpg, that's a tough one. I think it decreased my fuel consumption a bit, but nothing crazy. good luck.
and btw, i bought the powerdyne from summit, it think it was around 65. check them out.