Howdy, I have a 99' 4Runner V6 and trying to get a little more mileage and HP out of her. Looking for advice on Cat Back Systems. Are they worth it? Will it increase or decrease my mileage/ HP?? Which is better: TRD or Borla??? Thanks for your time!

 

I thought TRD was a relabeled Borla system

 

I heard that same thing too. BUT, Toyota says the TRD works better with the 3.4L......Have you ever used one of these systems? Did they work, or is it hype?

 

I haven't used either, but a lot of people complain about drone with both of those systems. Moreso with the TRD than the Borla. My Jardine gave me a really nice performance boost on my truck. You can hear it here.

Hope this helps and welcome to the forums!
G

 

I have the Borla and really like it alot.

John