hey shifty, with those pacesetter long tubes can i expect to get more sound out of my truck as well as hp since its dualed out?

 

what do you mean dualed out? any long tube will give you much more agressive exhaust sound.

 

by dualed out i mean my dual exhaust

 

im not 100% sure if its louder dual pipes im pretty sure but thats a question for built54. i was gonna ask him my self whats better for power gas mileage and all that . True duels 2 mufflers SI DO at the muffler or SI SO muffler. im running true duels 2 mufflers that dump under the cab. its pretty loud i got some old school dynomaxx superturbos thoe so there kinda big...it was very very loud true dual open headers...imagne that.... lol theres a guy that took off his Front cat on this forum some were you could do something like that to run your long tubes im gonna go look for it

 

ok i found it https://www.f150online.com/forums/sh...d.php?t=305931
but he cut off the back 2 cats...so pretty much something like this only...cut the front cats and down pipe as Long tube headers will replace that. you will have to custom fab a flange onto the pipe but you should be able to keep the rear cats with long tubes...i think. good luck with it

 

Yea , I was one the first to experiment running with just the smaller "front" cat awhile ago .

With a stock system - That cat mod should be done like this or your just wasting time and pissing away you money ..

Disconnect battery .

Remove Exhaust to manifold "Flange Bolts"

Remove crossbar below the the transmission.

Remove bolts that hold the transmission mount and exhaust support in place.



Your exhaust will now drop down enough so that you may enter the front cats ..

Gut your front cats with 3/4" auger type bit. Proceed into the cat and bust up material - Have a shop vac running to catch all dust and dis guarded material. Work a little at a time to catch as much dust as possible - If you don't , you will foul your EGR system..

Once there cleaned out - reconnect and enjoy.

Theres no welding or replacing this way, It's all you ..

Good Luck to whoever wants a much improved sound over stock and a little better performance..

 

wait hold on, so do you actually cut the pipe and go into the cat? or not? im a little confused. i want to do some sort of cat-modding to get more sound but i cant use high-flows in california, so this sounds interesting to me...

 

No Cuttin what so ever - You have just enough room to access the inside of your front converter after the system is unbolted and has dropped down in front..

Every one that I talked to about this before I went ahead with it had there own tool of choice for the extraction

Someone even used piece of rerod to jab at and break up the material inside the cat - then extract with a shop vac - It doesn't take that long ..

I think built54 has done this at one time - Patmanscrew has done it and Fasterf150 has experience at this as well.

The job is fairly easy and simple - Note: Inspect your flange bolts first - if old and rusty - you can count on them busting off inside the manifold and trust me - you won't get them out after that - Manifolds are $26 apiece on ebay - you might want to get a new set if your flange bolts look bad..

It does sound Bad A$$ - I had a Flowmaster 50 series when I first did this and my truck sounded like a Mustang GT under normal take off loads

 

is there any way i can tie the long tubes directly into my cats? cause id like to keep the stock cats on there if at all possible

 

i was also looking at a K&N 77 series cold air intake. is there anything out there that is better but a better deal in price?

 

so by doing this it will increase sound, and not throw any codes/still pass emissions??

i have a flowmaster super44 now, so it should sound pretty mean if i do this.

 

hey built54, can i tie the pacesetter long tubes directly into my cats?

 

there are no headers for the 4.6. i contacted pacesetter and they said they might have a set of longtubes out in 08

 

the link for them is right here http://cgi.ebay.com/ebaymotors/PaceS...QQcmdZViewItem

either 4.6 or 5.4

 

that is ebay. i contacted pacesetter directly and they said they dont make any