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Old 02-13-2013, 12:11 AM   #1 (permalink)
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Which High-Flow Cat?

I have read so many threads about which cat is better than another that it's literally driving me crazy! lol I think I've decide based on what I've read that I wanna go with the magnaflow/Car sounds but I have no idea what to get as far as sizing or length. I know I need the 2.5" or 60mm but I don't think my parts searching skills are that great yet haha so if someone wants to send me a link for what i need that would help out alot. I have an 01 SH with Hytech replica header and a APEXi WS2 catback. also if you can tell me the flex pipe i would need as well that'd be great. I've pretty much came to a stanstill as far as parts ordering goes haha

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Old 02-13-2013, 12:23 AM   #2 (permalink)
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2,5" Magnaflow #59926 ~$135

Catco makes also good cats

just get some 2,5" flex x 3-4" lenght like I already told you

you can find them from ebay or just go to some autopart store/exhaust shop and ask! you have to learn to search for parts by yourself. NO-ONE is going to do these things for you! we can give you recommendations and hints but its up to you to get everything work.

you dont have to do new topics about your every exhaust problem, you can use your first one for everything
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Old 02-13-2013, 12:31 AM   #3 (permalink)
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My bad I'm still trying to figure out this whole forum stuff haha and all flex pipes are pretty much the same as far as quality goes correct?
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Old 02-13-2013, 05:22 AM   #4 (permalink)
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and all flex pipes are pretty much the same as far as quality goes correct?
just get stainless steel one
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Old 02-13-2013, 05:25 AM   #5 (permalink)
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You can get Magnaflow/Carsound cats on Ebay for a lot cheaper than $135. Check Carsound's website for model numbers and then just search on ebay.
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Old 02-13-2013, 06:45 AM   #6 (permalink)
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You can get Magnaflow/Carsound cats on Ebay for a lot cheaper than $135. Check Carsound's website for model numbers and then just search on ebay.
that price was w shipping to finland
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Old 02-13-2013, 10:30 PM   #7 (permalink)
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Thanks for the help guys! I just don't wanna get something I wont like that's why I'm so concerned haha. You guys have been a big help!
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Old 02-15-2013, 12:11 AM   #8 (permalink)
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So I decided to go with a vibrant VIB-7038 2.5" cat. I got it pretty cheap so if I dont like it I'm only out 70 bucks. Time to look into some intake manifolds and headwork!
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Old 02-15-2013, 12:25 AM   #9 (permalink)
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So I decided to go with a vibrant VIB-7038 2.5" cat.
ceramic core ones doesnt last long, specially if you have good header

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Time to look into some intake manifolds and headwork!
and how exactly are you going to get your SH tuned after those?
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Old 02-15-2013, 12:37 AM   #10 (permalink)
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still looking into it but i'll most likely have to do away with the atts right? and new chipped ecu?
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Old 02-15-2013, 12:42 AM   #11 (permalink)
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still looking into it but i'll most likely have to do away with the atts right? and new chipped ecu?
still your car is slower than others with those mods since you have atts there to just add weight and do nothing else

sell that sh and buy base if youre going to build it more

or spend money for Greddy Emanage - Greddy E-Manage Ultimate ECU Unit

you cannot really do much else than maybe port your IM since you need it for atts (dont know how well euro r intake manifolds work with sh's though..)
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Old 02-15-2013, 01:05 AM   #12 (permalink)
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Yeah, I did the SH to base swap on my 97 and that's another reason why I'm trying to keep this one an SH, kinda something new for me I just gotta figure out how I'm gonna go about it. I know it wont be as fast as a base could be but I'd still like to see what I could get out of.

and I was looking into getting the euro r from rosko and seeing how that works with it.
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Old 02-15-2013, 01:57 AM   #13 (permalink)
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its just completely stupid to build sh's IMO
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Old 02-15-2013, 02:26 AM   #14 (permalink)
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The Rosko Euro-R intake manifold works just fine with SH models.

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its just completely stupid to build sh's IMO
My SH would have eaten you, especially around curves.
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Old 02-15-2013, 03:26 AM   #15 (permalink)
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My SH would have eaten you, especially around curves.
you can get sway bars and proper aftermarket lsd for base also

some day I'll get those sway bars
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Old 03-29-2013, 10:11 AM   #16 (permalink)
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2,5" Magnaflow #59926 ~$135

Catco makes also good cats

just get some 2,5" flex x 3-4" lenght like I already told you

you can find them from ebay or just go to some autopart store/exhaust shop and ask! you have to learn to search for parts by yourself. NO-ONE is going to do these things for you! we can give you recommendations and hints but its up to you to get everything work.

you dont have to do new topics about your every exhaust problem, you can use your first one for everything

TypeT, Would any of those throw and CEL?
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Old 03-29-2013, 11:12 AM   #17 (permalink)
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$135 for a magnaflow high-flow catalytic converter is madness. I paid $75 for mine on eBay. No you won't throw a CEL.
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Old 03-29-2013, 01:32 PM   #18 (permalink)
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Magnaflow with a stainless steel core. I have heard that after 1 year or two that they go bad if you get a ceramic. My OEM cat burnt out in the middle causing the annoying rattle. The rest of the insides were clean though. Still don't know what caused it. Honda mechanic said he didn't know either. Just a bad catalytic converter I guess.

If you are going for a new cat get a magnaflow 2.5" replace the resonator and get a muffler shop to run 2.5 mandrel bent stainless steel back to a magnaflow street muffler. Not to loud but just right. I gained 15-20 HP replacing cat back w/ cat, res, and muffler. DO NOT REMOVE THE RESONATOR AND STRAIT PIPE IT! seriously, really high pitch whine on the highway, annoying as hell and sounds really ricey. Without the Resonator you loose back pressure which looses HP and Torque, not to mention it can make your exhaust sound like crap.
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Old 03-29-2013, 01:33 PM   #19 (permalink)
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$135 for a magnaflow high-flow catalytic converter is madness.
no if its shipped across that small lake

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TypeT, Would any of those throw and CEL?
why would they

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Magnaflow with a stainless steel core. I have heard that after 1 year or two that they go bad if you get a ceramic.
ceramics just brake easily if they get hit

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I gained 15-20 HP replacing cat back w/ cat, res, and muffler.
proof?
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Old 03-29-2013, 02:13 PM   #20 (permalink)
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I had a bad Cat to start with so its not a increase off of the stock number. **** replacing the clogged OEM cat probably increased a few horses.
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