Lexus RCF with Exhaust @ Dyno
Stock RCF Exhaust is very VERY Restricted. It comes with a 2.5" drop down to 2" and an impressive super bottle neck of about 2 feet long of 1" 1/4 piping.
We made a custom exhaust and eliminated the cats and went full 2.5" and the car is where it needed to be from factory.
car had 367.80 whp oem
and now 403.89 whp
we need more mods!