Introducing new Racingline High flow Catalytic Converters
Did you have happend to do a pre install dyno?
That's what I would really like to see a pre and post dyno on a couple of these installs. It's a little extra $$ but then you know what your car is putting down.
That's what I would really like to see a pre and post dyno on a couple of these installs. It's a little extra $$ but then you know what your car is putting down.
Member
Joined: May 2008
Posts: 60
From: Rosenberg,TX
A pre and post dyno wouldn't have been good on Taz's car. His pre-cats were so messed up, he lost BIG power just having them on. I can vouch that his car has gotten SO much faster with only the pre-cats, but more than likely it is due because of the OEM pre-cat was so clogged. Still, looking at the pre-cats..they were very nice(high quality) and I think they are well worth the money spent.
A pre and post dyno wouldn't have been good on Taz's car. His pre-cats were so messed up, he lost BIG power just having them on. I can vouch that his car has gotten SO much faster with only the pre-cats, but more than likely it is due because of the OEM pre-cat was so clogged. Still, looking at the pre-cats..they were very nice(high quality) and I think they are well worth the money spent.
Well hopefully someone will else will do the pre / post dynos. I'll keep watching.
Senior Member
Joined: Nov 2007
Posts: 679
From: Fort Walton Beach
So we spoke about this on my6thgen.org in this thread http://my6thgen.org/showthread.php?t=2680
We came to a estimated conclusion that....
Cattman headers + y pipe gives you 25-27 whp
Racingline HF Precats + y pipe gives you 22-25 whp
W/ the racingline HF precats - you'll save probably $300-400 overall [installation & product cost] over the headers. You'll also not have to worry about gettin o2 simulators as you will not get a CEL* [as stated by racingline]
Saving $400 vs 5 whp... IMO ill go with saving $400 lol.
We came to a estimated conclusion that....
Cattman headers + y pipe gives you 25-27 whp
Racingline HF Precats + y pipe gives you 22-25 whp
W/ the racingline HF precats - you'll save probably $300-400 overall [installation & product cost] over the headers. You'll also not have to worry about gettin o2 simulators as you will not get a CEL* [as stated by racingline]
Saving $400 vs 5 whp... IMO ill go with saving $400 lol.
Member
Joined: Jan 2009
Posts: 45
From: Nashville, TN
Whats the deal with updating this thread? Anyone that has these installed PLEASE provide a detailed update. I am VERY interested in buying these not only for my Maxima but possibly for my wifes Murano also.
I installed them on my Altima and love them. When I installed them I also installed the ebay maxima exhaust. I have had them for about 3 weeks now and have no CELs. MPGs seem to have improved. Throttle response and torque have increased as well. I'm very happy with my set.
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TallTom
5th Generation Maxima (2000-2003)
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Oct 14, 2025 05:16 PM