Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Eliminating upper Cat on stock downpipe??

SHINCHU · 06-24-2010, 10:59 PM

i have a CA 95 with a honeycomb cat that unbolts from the downpipe. i could put on my SR test pipe if i want. no pre-cat.
however i might try to hunt down a CA OBD-II pre-cat style manifold if i have trouble passing smog? hmm... good thread.

06-24-2010, 10:59 PM	#14
SHINCHU Zilvia Member Join Date: Nov 2002 Location: Temecula, CA Age: 45 Posts: 244 Trader Rating: (0)	i have a CA 95 with a honeycomb cat that unbolts from the downpipe. i could put on my SR test pipe if i want. no pre-cat. however i might try to hunt down a CA OBD-II pre-cat style manifold if i have trouble passing smog? hmm... good thread.