Nissan 370Z Forum - View Single Post - Intake + Exhaust = what hp gains overall?

MJB · 01-13-2013, 04:36 PM

Quote:

Originally Posted by chrischhorn

IF for whatever reason you get a CEL, these will solve your problems. I didn't buy the L bend ones particularly. I bought 4 3" ones and double stacked on each side so effectively 6" on each side. CEL went off and never came back. I'll be doing the same thing once my test pipes get here.

2X O2 Oxygen Sensor Extension Extender M18 x 1 5 Bung Test Pipe Angled 90 Degree | eBay

O2 extenders help, but you can still throw a CEL with them. There really is no full proof way of eliminating CELs with TP or HFCs unless you get a UPREV tune and close the loop to those sensors.