I think my end links have developed a clunk sound. Very loud especially after a car wash. Sounds like a refrigerator compressor when you move a mini fridge around. I only hear it a lower speeds and rough roads.
Strange. I have not had an issue and just depress brake and clutch then press the button fully. Start right up every time. Now if you release the clutch before it's fully started it will terminate the starting
Interesting. I know PRL didn't manufacturer a replacement for the factory plastic section of intake pipe. Altering this prevents CARB certification in California. Maybe there is more to it and changes the metered air flow.
Only solution would be a custom tune.
Back seat is very easy. Removing bottom portion only has a single bolt that needs to be removed, driver side above the cushion. Then 2 plastic clips under the seat that you push the seat down then squeeze clip and lift.