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Cats

Yes or no pros and cons

Cats

Postby zach97 [OP] » Jan 20 2012, 6:47am

I bought my 97 silverado with true dual exhaust with no cats and im thinkin about putting some on. Does anyone have any input or thoughts.
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Related Topics  do I really need cats?   Removing cats?    Which kind of Cats should i get?   aftermarket cats   cut those cats?   Hollowing out my Cats   Headers & Cats   new direct fit cats question   Headers and high flow cats   whats a good muffler to use without cats?   Straight pipes with Cats. Poor mileage   Cats need replace on 5.3 + broken bolt on manifold   2010 silverado straight piped with cats   Hollowed out cats and a Magna flow Muffler 
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Re: Cats

Postby ASTE25 » Jan 20 2012, 8:49am

Unless you have a reason (inspection to pass) I would leave it like it is.
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Re: Cats

Postby zach97 [OP] » Jan 20 2012, 8:09pm

Im not worried about the inspection but i had heard i would get better gas mileage with them and also when i accelerate hard my truck cackels bad its just annoying and i was told it was because i didnt have cats on
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Re: Cats

Postby rdss » Jan 20 2012, 8:24pm

Do you have mufflers or just straight pipe? If you have nothing to deaden the sound I would throw on a pair of short mufflers (14" Magnaflows maybe?!) to dampen some of the harshness of a straight pipe exhaust with no cats. That and a pair of mufflers are a lot cheaper than cats.
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Re: Cats

Postby starspangled6.0 » Jan 20 2012, 9:14pm

Yeah, unless you need them, don't put them on- they're a lot more pricey than a good muffler.
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Re: Cats

Postby adams99z71 » Jan 20 2012, 11:12pm

i took my cats off awhile back and i have not seen any difference in MPG.
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Re: Cats

Postby zach97 [OP] » Jan 21 2012, 5:27am

ive had the cats for awhile now i got them for free from a friend and i have a dual in dual out flowmaster on her right now
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Re: Cats

Postby adams99z71 » Jan 21 2012, 5:41am

if you already have the cats, a welder, some beer/time and want to throw them on then by all means do it. i'd kinda like to put mine back on because im getting tired of my wife complaining about the volume lol.
nbs99 z71 325ci v8, stock 4wheel disc brakes, no cats, flow master classic 40 series, rhino line, custom fog lights, cb, bully dog tunner, 4:10 locker, airbag load leveling, 205,000miles.
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