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so it's basically just laying next to the pipe? interesting.....can't beleive that works.

what year jeep is it? is that just the front o2 sensor? what i need is the rear sensor. which registers the efficiency of the cat. i would think if you remove the cat but put the sensor in it would still have "check engine" codes for a faulty cat.

do they exist for the jeep? planning to enlarge the rear exit off the cat to 2.5"...into a 2.5" muffler and tail pipe. but if i don't have to install an o2 bung for the rear sensor, and just use a simulator to keep the PCM happy...i will. any help?? i know they make em for chevies and fords...

removing the cat from the system WILL increase the power. how much is questionable. highly doubt it would be enough to feel...likely less than 10hp. it WILL make the car sound different, you may end up with more rasp when you get into the upper rpms. i say pull the cat, and put a magnaflow...

whats the biggest tire i can put on a stock 03 TJ steel rim? can i go a bit bigger than stock? might give me a few more options. jeep is NOT lifted at all

thanks

in need of some new stock size tires for the Wrangler. tire rack obviously has a ton to chose from. just lookign for some honest input on ones to check out or to AVOID. jeep is 99% street driven in south florida, LOTS of rain. only consideration....and a small one at that...is we pull a 20ft...

magnaflow 4x9 straight thru mufflers. i have them on my 450hp Z28, with dual 3" exhaust. throaty, but not deffening. price isn't bad either...i think around $60 each, and available in all kinds of in/out configurations

got em... thanks a ton....now i have some bathroom reading!!!

yeah i'm down in the keys...marathon. trying to get a bit more power out of the jeep (tow a boat sometimes), and maybe make it a bit more fuel efficient (gf drives it 70 round trip to work). as for the controls/wiring. i'd want it running of a basic thermo switch...no need for anything more...

gotcha... seemed like some of the responses were saying otherwise. ANYWHO... finding a ford to pull isn't so easy...i'm on an island in the middle of the atlantic. i'd have to drive 2-4hrs to the nearest junkyard...and being near miami...i'm sure they're picked over. so for the time and...

maybe you guys misunderstood me... this IS NOT FROM A FORD, its from a BUICK. was wondering what made the ford fan so great...which you guys kindda answered. guess i need to take some measurements when i pull it out.

i'll take em.... let me know if thy're still available

so if i remember correctly you guys say the elec fan setup out of the ford taurus was a good swap into the Jeep. what makes THAT setup so good? dimensions? power? shroud design? i have an 89 buick w/ 3.8L v6 that i've been using as a beater...well one of the pistons finally took a crap...

so are you modifying these? if you are...where are you getting the larger throttle blade? i have access to a machine shop, and have thought about machining out my TB. would like to have a professional blade though, wuold save time.

"4wd.com had an 1994 LS1 engine in a 1989 YJ featured in one of their catalogues" not to nit-pick....but the LSx line of engines didn't exist in production lines untill 1997..when it became available in the corvette. the LSx engines make gobbs of power, and are very reliable. for minimal...

what engine type and power output are you talking? L98...LT1...LT4...LS1...LS6...LS2?? gonna need a beefy trans to support it. not sure if you can fit a T56 six speed into a jeep or not...but would make for a fun ride

anything that allows the engine to breath better will boost power across the board. low restriction intake, and exhaust are the obvious. something like roller rockers to reduce valvetrain friction is also a good way. not to mention reducing parasitic drag, like electric fans. beyond that...

while in theory i think your description of the what the computer does is correct. but i find it VERY hard to believe this could happen by lowering the temps 15 or 25 deg. but thanks for the info

found some random info today while looking through a catalog... quadratec lists 97-04 jeeps as having a 195* stat...which i kindda figured. didn't list anything for earlier...but i'm guessing its similar. and judging from the pictures of the engine (jeep isn't here...so can't pop the hood)...