Subaru Enthusiasts Car Club of the Sierras - View Single Post - OEM catless vs. aftermarket up pipe DEBATE

GrimmSpeed · 2010-03-17, 08:38 AM

Ok here are the Cat'd OEM Up Pipe results

Subaru OEM Cat'd Up Pipe at 28" - 164.7 CFM <--- BOOOO!

CFM increase of 78% or 127.9 CFM at 28" of water vs. an aftermarket up pipe.

Here is a graph of all three tests:

Needless to say, any type of aftermarket up pipe is going to be superior to any oem up pipe, even the oem catless up pipe.

Justin

2010-03-17, 08:38 AM	#17
GrimmSpeed EJ22 Join Date: May 2008 Posts: 244	Ok here are the Cat'd OEM Up Pipe results Subaru OEM Cat'd Up Pipe at 28" - 164.7 CFM <--- BOOOO! CFM increase of 78% or 127.9 CFM at 28" of water vs. an aftermarket up pipe. Here is a graph of all three tests: Needless to say, any type of aftermarket up pipe is going to be superior to any oem up pipe, even the oem catless up pipe. Justin