Those with catless downpipes and NO CEL!!
Thread Starter
Senior Member



SL Member
Team ScioNRG
Joined: Apr 2005
Posts: 4,113
From: Goldsboro, NC
I'm noticing a few people with catless downpipes are still getting CEL's even with using anit-foulers. For those with no cat and NO CEL, post up and let us know how you did it!
... The downpipe doesn't have a cat to begin with.
The exhaust manifold has a cat.. then the downpipe... then another cat.
YOu can have a downpipe and both cats. If you don't have the first cat converter, an antifouler will prevent a cel
The exhaust manifold has a cat.. then the downpipe... then another cat.
YOu can have a downpipe and both cats. If you don't have the first cat converter, an antifouler will prevent a cel
Thread Starter
Senior Member



SL Member
Team ScioNRG
Joined: Apr 2005
Posts: 4,113
From: Goldsboro, NC
Originally Posted by TimmyT
... The downpipe doesn't have a cat to begin with.
The exhaust manifold has a cat.. then the downpipe... then another cat.
YOu can have a downpipe and both cats. If you don't have the first cat converter, an antifouler will prevent a cel
The exhaust manifold has a cat.. then the downpipe... then another cat.
YOu can have a downpipe and both cats. If you don't have the first cat converter, an antifouler will prevent a cel
PM MIAPLAYA and get the part number from the antifouler from the turbonetics kit. It works great. Ive never heard of a turbonetics kit throwing a o2 sensor rich code. Ive never had one.
Thread Starter
Senior Member



SL Member
Team ScioNRG
Joined: Apr 2005
Posts: 4,113
From: Goldsboro, NC
From the picture yamaha16bw is refering to, it looks to be slightly longer than the spark nonfouler DIY. Like i said bysta27, add 1 more spark plug non fouler to the 2 you already have now and see how it does


