I have installed Megan headers, First a K&N filter then an AEM CAI, high flow converter, 17" Acura wheels, 5Zigen mufflers. But the best mod was a front strut bar from an Acura CL-S. I noticed immediate improvement in reduced cowl shake and interior squeeks and improved road feel. What's your best bang?

 

I havnt done anything to my accord yet, but when i had my lude changing my wheels from some american eagle wheels it had to volk ce28n made a huge difference. I know they are light rims but wasnt expecting a differnt feel cause of it. Also changing my steering wheel to a personal 350mm was neat too, felt like i hade more control