I have a 01' XJ...4.0L...and want to start upgrading the engine. I know I'll start with a K&N...but after that I'm not sure. Does that filter need a heat shield? What about a throttle body and/or spacer upgrade? Let me know the essentials I should be starting with...and any more suggestions you want to add. THANKS!!
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2001 XJ engine mod's? help...
- Thread starter Holycow72
- Start date
