Since I bought my SRT4 it came without one. Smog tests are getting tougher around here. My car has stage 3 and Mopar Performance exhaust (with cat-delete pipe). Wich cat would you recommend? Thanks.
Since I bought my SRT4 it came without one. Smog tests are getting tougher around here. My car has stage 3 and Mopar Performance exhaust (with cat-delete pipe). Wich cat would you recommend? Thanks.
Get a Magnaflow one that is the same ID/OD as your exhaust. Is your cat delete pipe flanged to where you can just unbolt it and bolt in a cat or is it welded in? If not I'd recommend getting them flanged so you cann put the cat on for smog test then swap back on the cat delete pipe for everyday driving.
I would agree
The stage kits have a tendency to run rich and plug up the cat
I'd get the biggest one listed on Jegs or Summit Racing to flow better.
[SIZE=3][COLOR=#000000]47 Time NHRA/IHRA drag race champ-----84 Plymouth Horizon/1 of 84 HO equipped from the factory/1910 lbs, 2.5 with carb, nearly 315,000 miles-----04 SRT4/S2 with S3 turbo/12.17 @ 119/DOTs/93 Octane/SOLD-----2003 PT Cruiser GT, won a True Street class at the 2017 National Muscle Car Association World Street Finals-----2010 Toyota Prius/my delivery truck, 77.9 mpg best and NOT A PLUG IN, nearly 230,000 miles and way over 5600 miles per month! [/COLOR][/SIZE]
I'm running this universal spun cat, #54959...love it, compact for easy install and superb #'s on the state dyno & 5-gas analyzer. went from straight pipe to this, and wouldn't know the difference for performance, outside of the better exhaust note and missing the smell of unburnt fuel! well worth the price.
http://www.magnaflow.com/02catalytic...niversal=54959
This is the one I'm considering getting for my PT GT stage 1 for similar reasons. I'm also considering it for the van.Originally Posted by Mario_V
One thing I like is the actually advertise flow numbers. Here is the ebay ad, or you can check out their website.
http://pages.ebay.com/motors/link/?n...d=400201698411
Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
I've been reading on this forum that Magnaflows don't last long. http://www.turbo-mopar.com/forums/sh...-CA-smog/page6
Wouldn't a Walker cat be better?
As long as you aren't running extremely rich or burning oil any cat should last a long time.
exactly. I'm running my own tune on a relatively fresh short block, on this cat for just over 2 years. nothing but good things to say. and honestly, don't remember what I spent, might have been $100. would do that again in a shot and still feel like I got my money's worth. priceless to see the face on the techs at in the inspection station, hearing the rumble and thinking they've got a fail coming for sure. classic. nice low #'s surprised even me knowing how I tuned it.
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