Anyone install a Catback system on their rig? - Off-Road Forums & Discussion Groups
Ford 67-96 F-Series, 78-96 Bronco All discussions of 67-96 F-Series Trucks and 78-96 Broncos

 
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post #1 of (permalink) Old 12-12-2000, 12:40 PM
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Anyone install a Catback system on their rig?

I was looking thru the JC Whitney catalog and I see quite a few ads claiming that a "Catback" exhaust system will increase horsepower by 7% or so. Is this true? Isn't there still the initial restriction going thru the exhaust manifold? So why would 3" pipes help if the flow is still being ristricted? Is it worth the 150-200 bucks to put one on my Bronco? It's mostly a city driver but I do take it 4 x'n in the sand dunes quite often during ths summer. How easy is it to install one of these systems?

Thanks for any advice...

92 Bronco XLT w/ measly 302...

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post #2 of (permalink) Old 12-12-2000, 01:04 PM
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Re: Anyone install a Catback system on their rig?

There's more to it than just a larger diameter pipe. "Cat-back" would also include the muffler. All stock OEM mufflers are designed to run quiet, which restricts exhaust flow. A cat-back system includes a high flow muffler and usually a larger diameter tailpipe. It can free up a little bit of power, but I don't know how noticable it will be. I am about to install a Flowmaster 50 series on my '96 with a 351. I'm just replacing the muffler and reusing the tailpipe. It cost me $80 from Summit. I'm more interested in a deeper exhaust sound, if I get a performance gain from it, that's a welcome bonus.

To answer your questions, a $200 system like Gibson or something similiar will probably bolt up just like the stock system did and you shouldn't need any modifications to the pipe. For that price it should be an easy bolt-on install. Whether you should buy it or not is up to you. Look at your old tailpipe, if it is still in good shape and not rusted out, you may want to save some money and just buy a high flow muffler like I did. Exhaust work isn't fun to me, but it's not very difficult. Good luck!

post #3 of (permalink) Old 12-12-2000, 01:17 PM
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Re: Anyone install a Catback system on their rig?

Thanks, Is there any emissions complications with installing one of these?

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post #4 of (permalink) Old 12-12-2000, 01:20 PM
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Re: Anyone install a Catback system on their rig?


Nope. As long as you keep the cat installed properly you're good to go.

post #5 of (permalink) Old 12-12-2000, 02:26 PM
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Re: Anyone install a Catback system on their rig?

Ive ordered a force 2 cat-back system for my bronco from Flowmaster this week but I wont get until March of next year. It comes with a series 50 Delta flow muffler so hopefully it wont be too obnoxious. Ill post next year when I have it on.
Anyone else try this or something diff? I looked at borla but it was over twice the price but S.S. Flowmaster supposed to be pretty tough and well built so I'll stick it out and try it.

post #6 of (permalink) Old 12-12-2000, 06:04 PM
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Re: Anyone install a Catback system on their rig?

i installed a flowmaster force 2 on my dads 88 bronco 351,c6, 3.08 it noticibly increased power and accelleration. the only thing is that the muffler is a "50 series suv", which is 5" thick instead of the normal 3 or 4 inch. i have a regular 50 series that is much louder. the force 2 kit isn't noticeably louder, but power is much improved. id reccomend one to any one. also, the tailpipe is nice beacuse it is a single one with a slant cut on the end, and it is positioned very close to the bottom of the panel behind the wheel well, like a coupe inches instead of a foot, so it looks much cleaner

post #7 of (permalink) Old 12-13-2000, 12:13 AM
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Re: Anyone install a Catback system on their rig?

I have a 95 with the 351 engine. I installed a Gibson 3 inch catback system along with a K&N air filter and noticed better mid range and top end power. My MPG improved 2 to 3 miles to the gallon on the highway. After 70000 miles the Gibson muffler started to break up and I replaced it with a Floemaster. The Flowmaster is a little louder and gives great performane. I recommend calling Flowmaster and talk to the tech people to make sure you get the right set up.

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