Cat back vs High Flow Muffler and Cat????

nfrantz007 · 03-10-2008, 07:42 PM

So I'm on the fence whether to spring for a cat back system(borla, etc) or to go down a cheaper road and just replace the muffler and cat with high flow models(flomaster). I've done some searching and reading in the posts but have not really seen any comparison between the two options(performance). My muffler, cat, and stock pipe seem to be in decent order so please don't factor in replacing the entire system because of any current mechanical issues.

Opinions, suggestions, and current set ups would all be appreciated.

rig: 1997 4runner 3.4

Thanks!

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pattycakes77 · 03-10-2008, 08:31 PM

all i can say from my experience is, don't get the TRD cat back system. even though i've been running it for about 3 1/2 years now with no real issues except for a completely rusted chrome exhaust tip, i would say it's not worth the money. i got mine for over $500 years ago, the rusty tip ticked me off, and i didn't get the sound i wanted. when/if the stainless stuff ever fails on this system, i'm going for the flowmaster stuff as suggested on here numerous times.

not much to contribute, just one possibility to check off the list of options.

j-man · 03-10-2008, 09:56 PM

Flowmaster is not high flow, it has baffles like a rat maze and is restrictive. Magnaflow or any other straight thru muffler is what you'll want. A highflow cat wont gain u much of anything unless your turbo or stupidcharged.

03-10-2008, 08:31 PM	#2 (permalink)
pattycakes77 Registered User Join Date: Mar 2006 Location: Iowa Posts: 1,085	all i can say from my experience is, don't get the TRD cat back system. even though i've been running it for about 3 1/2 years now with no real issues except for a completely rusted chrome exhaust tip, i would say it's not worth the money. i got mine for over $500 years ago, the rusty tip ticked me off, and i didn't get the sound i wanted. when/if the stainless stuff ever fails on this system, i'm going for the flowmaster stuff as suggested on here numerous times. not much to contribute, just one possibility to check off the list of options. __________________ The PATYWGN: 1998 4Runner Desert Dune Pearl. PATYWGN show-off thread Sport Hood FAQ

03-10-2008, 09:56 PM	#3 (permalink)
j-man Registered User Join Date: Feb 2007 Location: Santa Monica, Ca Posts: 207	Flowmaster is not high flow, it has baffles like a rat maze and is restrictive. Magnaflow or any other straight thru muffler is what you'll want. A highflow cat wont gain u much of anything unless your turbo or stupidcharged. __________________ 2000 4Runner v6 sr5 4x4 5spd: Turbo'ed 99 4Runner v6 Sr5 4x4 5spd: Saw's / OME combo TrueTrac rear 98 4Runner V6 Sr5 4x4 5spd E-locker: Saws / OME combo... EEZI AWN Roof Tent 1.4m 97 4Runner V6 Sr5 4x4 Auto: Saws / OME combo TrueTrac rear 2003 Landcruiser 285 BFG At's and outback roofrack My Baja Trailer Build: http://forum.ih8mud.com/showthread.php?t=179520 http://community.webshots.com/user/bajaroadtrain

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