Author Topic: 05 4.0 header/02 sims...opinions wanted  (Read 878 times)

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95toyrunner

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05 4.0 header/02 sims...opinions wanted
« on: Dec 26, 2014, 07:18:44 AM »
HELP PLEASE!! My 05 toyota (4.0) is throwing the p0420 and p0430 codes, my cats are bad, they've been tested and that's what it is. Right now our biggest concern is MPG's it's dropped about 5mpg's. Now before I spend $$ and replace the manifolds/cats I've been looking into other options...I wouldn't mind a performance upgrade and exhaust tone upgrade. I've been looking at headers and 02 sims, anyone have experience with these? A particular proven company? Did you get restored power and mpg's? Thanks a lot guys!! I'd still like your input if you only did one or the other!


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1995 toyota 4runner, sr5, 5" sas, ome 863 coils, extended links, 37" MT/r's, 4.88's
http://board.marlincrawler.com/index.php?topic=51430.0 SOLD

1996 Toyota Tacoma ex-2wd, 2rz, 3link 14"FOAs, dual ultimate cases, chevy rear, 37" MT/r's, 4.88's
http://board.marlincrawler.com/index.php?topic=91724.0 SOLD

2001 Taco Dcab, king coilovers, 4.56 gears, detroit, 33's, SOLD

1999 Taco extracab, 3.4 5 speed, sas'd on one tons, 37" km2's, spooled front, detroit rear, bobbed, tirecarrier, hydro asist, high steer. SOLD

2005 4runner, sway-a-way coilovers, all pro rear 3.5 springs, 285 ko2's on meathod NVs

ThorInc

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Re: 05 4.0 header/02 sims...opinions wanted
« Reply #1 on: Dec 26, 2014, 07:21:21 AM »
Magnaflow, TRD or Borla.

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Blk Scout 800

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Re: 05 4.0 header/02 sims...opinions wanted
« Reply #2 on: Feb 20, 2017, 08:08:01 PM »
I have Doug thorley on my FJ. Great fitment!