The V8 Owners Forum -

Posted: **Tue Apr 03, 2007 11:06 pm**

Hi guys, what size pipe would you recomend to run on a 3.9??? would a 3" system be too big or OK???

Cheers
Jono

Posted: **Wed Apr 04, 2007 8:54 am**

I assume you mean a single exhaust? 2.5 is the proper size if its standardish, obviously 3 will work but you might loose some torque.

What size exhaust??