this might be a dumb question i was just wondering besides the fuel injection what else is the difference between the motors, im just asking because everytime i look on websites i was lookin at a full yoshy exhaust and it said i coud use the 01-06 yoshy full exhaust on my 99 f4 i was just wondering if that was true if anybody could help me that would be great

 

You can use an f4i full exhaust system I believe. But you cannot just use an f4i slip-on.

 

Nothing that was posted on the net that will make a difference in the ride. just there is some cosmetics pending on the year.(seats, subframe, rear plastics)

 

thanks

 

Yes you can use a FULL system.

You can not mix and match headers and slip-ons though. You have to run all F4 or all F4i exhaust parts because the mid pipe bend and header angles are different.

I'm running a full M4 F4i exhaust on my F4. Love it.

 

yeah what woot said