Stock Exhaust to Single Exit
 

Hey,

Looking at going from Stock Exhaust to Single Exit.

Question:

Going from the big flat rear cat that looks like it was designed to help with the under body air flow to a single exit how does that effect air flow?

Should I look at getting a rear plat made up to match the stock area?

The stock muffler was part of the aero Toyobaru built into the car. So yes, you will lose a littl downforce.

Now to find someone to make me an aluminum rear diff user to cover that area.

I really doubt it will make much of a difference unless you are pushing this car to the limit very frequently.