exhaust!!!

ok guys am thinking bot doing the full exhaust on my 2003 taco 4x4 an i was goin to do headers also. Could u tell me what u all have done an what u all have used. An have u stayed with the cat's are did u delete them? an if u did how do the truck run an gas miles. an could u give me any head's up that i mite want to know about be4 i start doin this. am good with my hands an tools i have build my 69 camaro an motor. but just asking if there are any problems that i mite run into? if anyone haves any input on this thread plz let me know....
thanks jason

 

I dunno, how are the smog/EPA requirements in Kentucky ? I know that I sure as hell would do my homework before getting rid of or altering the CATS seeing how its all so integrated into the onboard (emissions, smog laws etc CPU due to EPA standards, I mean do you have to smog it every couple of years in order to register it like we have to do here in SoCal ??........

 

hey, no there is no emissions test in kentucky at all. love it lol.

 

Well then Tweek the hell out of it then dude if ya have a green light to do so & do it till you get it running like a raped ape !! haha......

Fuck it just run straight headers !!

 

i do that on my camaro but i dont want my cel on an i dont want to cut the wire to it lol

 

If I were you, I would get the Dough Thorely's, keep the cats and match it all up with a Dynomax super turbo muffler.

 

What ever you do. Get a Magnaflow!!!
I love mine, its quite in the cab and its a really clean smooth rummble when you get on it.

 

My intake/exhaust setup is an aFE Stage2 intake, Doug Thorley headers, stock cat and midpipe, 5x8x24" Magnaflow muffler and dumps right after the axle. When I go WOT it screams and truck gets up and goes! I did notice a slight loss in low end torque but I gained a bit in the mid to high RPM.

At idle it has a really deep sound which I love and it not loud until you get on it. I've never heard a better setup other than my cousin's 02 4Runner which has a K&N FIPK, TRD headers and TRD catback. His sounds almost like a V8 at idle and has a really deep and throaty tone on acceleration but it is never loud or obnoxious. My setup can get a little irritating on long inclines because it drones.

 

were is the best place to get me the doug thorley headers? i was looking at the obx but i cant see no one runs them so i just go with the doug's.

 

URD should have them. And I did TRD Headers but they dont make them anymore, But the Dough Thorley's the next best thing. And a magnaflow or Dynomax muffler are the two mufflers I would match up with headers. Ive heard that others sound too ricey, or buzzy. I had a Gibson and it sounded like crap with my headers.

And I wouldnt go crazy with the cats, bc our truck like some back pressure and you may just loose some power by doing so. Keep the cats man!

 

sounds good man but what is urd? u said they would have them do u have a web site? i have heard the flowmasters delat 40's an it sounds nice but the muff, was still up in the air.

 

http://www.urdusa.com/product_info.php?cPath=93_120&products_id=1260518585

there you go man! and Its up to you, but I just know that some mufflers sound buzzy or raspy, but the Magnaflow and Dynomax will sound good. Not sure about Flowmaster....

 

I got a flowmaster, it sounds pretty good. Not loud at all.

But OP, id recomend a Borla exhuast. Very high quality. Maybe 2.5" piping. Doug thourley headers, or TRD headers if u can find them.

Leave the CATS

 

^^ Yeah, that is another good muffler!

 

thanks for the link big help an thanks for ur's input on this guys!!

 

x2 which series of Magnaflow did u go with?

 

What do you do about the o2 sensors/ check engine light when you delete the cat?

 

ive got the flowmaster super 10 series, i searched high and low for an exhaust system that wouldnt make it sound like a ricer and this flowmasters sound great. if you want loud and all around sexy and you want to sound like your running a V8 they are the thing to get if you want quite with no internal resonance then this is not for you.
http://www.flowmastermufflers.com/s...07&ab=8425152&recordID=&vehicle=&orig=8425152