I had a 3" high flow carsound cat and a 3" Full Boar = Flowmaster 40 series muffler put on with 3" pipe, and it is not as loud as I would like it to be. Oh well, guess I flushed $500 down the toilet for nothing. And I think I lost low end torque also.

 

what year is your truck and what kind of engine do you have and what mods?

 

90 fullsize bronco 351w only mod is a k&n air filter.

 

Yeah that pipe is definetly too big for your engine. A good choice would have been dual 2.25". 3" is too large for that engine w/o any mods. SOOOO that means you've got to mod the truck now right?

 

It is not dual 3" pipes, it is single 3" pipe.

 

>I had a 3" high flow carsound cat and a 3" Full Boar =
>Flowmaster 40 series muffler put on with 3" pipe, and it is
>not as loud as I would like it to be. Oh well, guess I
>flushed $500 down the toilet for nothing. And I think I lost
>low end torque also.


I feel you pain! I have a 90 Bronco 351W that splits to duals after the cat with 2.25 inch pipe and it sounds like crap. I have yet to hear a 87-96 Ford truck that sounds all that good. Chevy's and the newer Fords and Dodges sound good, but not the 87-96 fords. I cut the second cat off and it sounded good, but to keep it legal I had to put it back on. I think what makes it sound so bad is the 2 cat setup. I have just learned to live with it, cause I have been researching for a few years now and have yet to hear a 87-96 Ford truck that sounds good unless it has an illegal setup on it (true duals, cut off the cat, etc.) but since I live in a emissions testing area I guess I just have to live with it.

 

Try replacing the second cat with $55 CATCO cat, you can get them from summit.

 

They cut both cats off and installed a single 3" high flow carsound cat, a 3" full boar muffler, and 3' pipe.

 

What's a Full Boar muffler? It looks like you're saying it's a knockoff FM 40 series? Perhaps somebody was putting you on. Try replacing it with a real flowmaster 40, if you can get your hands on one. Because that setup should sound pretty healthy.

 

88 F150 4x4 302 5speed
I'm running stock Mustang headers stock 2.5in y pipe with a high flow 3in cat 3in pipe and some kind of 3in turbo style tube muffler and 3in over the axle out the side all thick walled pipe. Just had it done last Thur and it passed the e-test no problem. Improved performance and man it sounds great! I think your problem might be the stock manifolds?

 

It may be the manifolds, I'll have to tell my girlfriend that I need $300 headers now. They didnt have any original 40 series, and he said the full boar would sound close to them.

 

I don't know, but I suspect the muffler shop guy probobly wasn't totally honest with you. Because the setup you described should sound really good.

 

[updated:LAST EDITED ON 12-Nov-02 AT 09:00 PM (EST)]>>I had a 3" high flow carsound cat and a 3" Full Boar =
>>Flowmaster 40 series muffler put on with 3" pipe, and it is
>>not as loud as I would like it to be. Oh well, guess I
>>flushed $500 down the toilet for nothing. And I think I lost
>>low end torque also.
>
>
>I feel you pain! I have a 90 Bronco 351W that splits to
>duals after the cat with 2.25 inch pipe and it sounds like
>crap. I have yet to hear a 87-96 Ford truck that sounds all
>that good. Chevy's and the newer Fords and Dodges sound
>good, but not the 87-96 fords. I cut the second cat off and
>it sounded good, but to keep it legal I had to put it back
>on. I think what makes it sound so bad is the 2 cat setup. I
>have just learned to live with it, cause I have been
>researching for a few years now and have yet to hear a 87-96
>Ford truck that sounds good unless it has an illegal setup
>on it (true duals, cut off the cat, etc.) but since I live
>in a emissions testing area I guess I just have to live with
>it.

hmm. i have the same setup on my truck and it sounds damn good. it sounded like ***** before i put the 3 inch tips on though, now i get all sorts of compliments. if you dont have tips thats probably your problem.

 

Sounds like the muffler. I just bought an orig.
40 the other day 3"in & dual 2.5's out from a
local speed shop in Perry Hall, Maryland. So
there still avaliable in stock on his shelf.