cats with no smell.
#17
Depends on where the refinery received crude oil [sulfur content] that day and what the end result of blending and storage in tank farms was?
Different gasoline will emit different smells with the same cats, what happens across US.
http://www.ornl.gov/info/ornlreview/.../emissions.htm
Different gasoline will emit different smells with the same cats, what happens across US.
http://www.ornl.gov/info/ornlreview/.../emissions.htm
#18
Former G35driver Vendor
iTrader: (84)
Originally Posted by O RLY
I have FI 300 Cell Metallic HFCs.
They do smell, but only on a cold start. After a couple mins of warming up, I don't smell anything.
They do smell, but only on a cold start. After a couple mins of warming up, I don't smell anything.
#21
Originally Posted by Klubbheads
any updates?
Do they smell? Hell yes, but it doesn't bother me
First time I started up my car, it was in a closed garage. Big mistake
Actually, its not that bad. Either that, or I already got use to them. I really don't mind at all anymore. The only time I can smell them is at start up (windows down) or when I stop at redlights (windows down).
I have zero regrets of going with my FI Resonated Test pipes over their HFC. Cheaper, louder (in a good way), lighter, and should yield a little more power over HFC, especially with a tune since it does lean out the AFR more than HFC would (car feels sluggish from all my breathing mods- need a tune).
.
#24
Originally Posted by Klubbheads
The main thing that i am worried about is not to get popped for them. So HFC will not smell when the LAW is behind u?
Anyone with HFC chime in.
Anyone with HFC chime in.
#25
#26
#27
#29
Just installed my FI resonated Test pipes yesterday and have question. Do these cats needs a "brake in" period. Because at WOT im getting rasp throughout the rev range. Im just wondering if the rasp will get louder or quieter as the time goes by. Also i have a "blow off valve" sound when the rpms are coming down and that sound comes on at exactly 2300 rpm and goes away. Does anyone know why?
BTW my car makes the sickest sound at half throttle.
BTW my car makes the sickest sound at half throttle.
#30
Originally Posted by Klubbheads
Just installed my FI resonated Test pipes yesterday and have question. Do these cats needs a "brake in" period. Because at WOT im getting rasp throughout the rev range. Im just wondering if the rasp will get louder or quieter as the time goes by. Also i have a "blow off valve" sound when the rpms are coming down and that sound comes on at exactly 2300 rpm and goes away. Does anyone know why?
BTW my car makes the sickest sound at half throttle.
BTW my car makes the sickest sound at half throttle.
Resonated testpipes, and any exhaust part for that matter, will need some break in - though resonated testpipes don't need much - maybe 50-100 miles.
Which exhaust are you running with them?
Rick