Was this a good choice?

kitsapfreerider · 08-07-2009, 03:54 PM

Well the jeep I was going to buy sold about an hour before i got there. So I decided to go buy some stuff for my old one. Rustys had a special so I went out and bought it. Heres what I got

Flowmaster 40
Rustys air tube
6"/9" KN filter
2.5 inch tail pipe
all for $270 including shipping

So am I looking at a good increase in performance and fuel economy? The rig
(1995 xj 4.0) currently has a walker muffler with 6-7 holes punched in it that old owner put in and a 2.25 tail pipe. I also am going to clean out the cat because theres a piece of something rattling in it. any opinions has anyone done something like this?

Abovetimberline · 08-07-2009, 04:11 PM

anything you can do to increase airflow will help increase hp and mpg,the rattle in your cat is the brick coming apart. You will not find anyone giving you advise on here other than replace it,i know there are states without emisions but it is still not leagal to run without it. or clean it out.

LongHornCherokeeMan · 08-07-2009, 09:12 PM

go to autozone its like 117 for a magna flow cat and i also advise changing out the 02 sensors in the exhaust as well

4.3L XJ · 08-07-2009, 09:18 PM

Summit Racing has high flow cats for around $90. I have been running one and it passed smog beautifully.

huntingman2706217 · 08-07-2009, 11:16 PM

ebay... high flow cats...

kitsapfreerider · 08-08-2009, 12:19 AM

yep i'll just pick one up my friend said he will give me a good deal on a cat. my state doesn't require a smog test but I still want to remain legal. Does anyone know the general increase in hp and mpg for any of those products??

Abovetimberline · 08-08-2009, 12:47 AM

Maybe 1-3h.p 1 mpg,you will notice something,but not alot,keep us informed.

kitsapfreerider · 08-08-2009, 12:50 AM

yep i'l post pics, it should arrive on tuesday. I work at the shop that night so i'll install them then.

08-07-2009, 03:54 PM	#1
kitsapfreerider Seasoned Member Join Date: Apr 2009 Location: Appleton Wisconsin Posts: 344 My Photos 1995 Cherokee Year: 1995 Model: Cherokee Engine: 4.0 Transmission: 4 speed auto Transfer Case: 231 Front Axle: dana 30 Rear Axle: chys. 8.25 Tires: bfg wranglers Lift Specifications: stock	Was this a good choice? Well the jeep I was going to buy sold about an hour before i got there. So I decided to go buy some stuff for my old one. Rustys had a special so I went out and bought it. Heres what I got Flowmaster 40 Rustys air tube 6"/9" KN filter 2.5 inch tail pipe all for $270 including shipping So am I looking at a good increase in performance and fuel economy? The rig (1995 xj 4.0) currently has a walker muffler with 6-7 holes punched in it that old owner put in and a 2.25 tail pipe. I also am going to clean out the cat because theres a piece of something rattling in it. any opinions has anyone done something like this?

08-07-2009, 04:11 PM	#2
Abovetimberline CF Veteran Join Date: Jul 2009 Location: Chico,ca Posts: 2,156 My Photos 89 Cherokee Year: 89 Model: Cherokee Engine: 4.0 Transmission: AW4 Transfer Case: 242 Front Axle: D30 Rear Axle: D44 Tires: Junk at this point	anything you can do to increase airflow will help increase hp and mpg,the rattle in your cat is the brick coming apart. You will not find anyone giving you advise on here other than replace it,i know there are states without emisions but it is still not leagal to run without it. or clean it out. Last edited by Abovetimberline; 08-07-2009 at 04:21 PM..

08-07-2009, 09:12 PM	#3
LongHornCherokeeMan Member Join Date: Mar 2009 Location: Oakland Maine Posts: 163 My Photos 1999 Cherokee Year: 1999 Model: Cherokee Engine: 4.0L Transmission: 4sp auto Transfer Case: 242 Tires: 235 r15 comes with good gas mileage Lift Specifications: 3in rough country full leafs Misc Accessories: poweraid tbs, rustys air intake, rustys tc 1in drop crossmember, cherrybomb muff, custom roofrack,	go to autozone its like 117 for a magna flow cat and i also advise changing out the 02 sensors in the exhaust as well __________________ Mainers rule

08-07-2009, 11:16 PM	#5
huntingman2706217 Frugal Join Date: Mar 2009 Location: Griffin, G.A. Posts: 3,134 My Photos 1989 Cherokee Year: 1989 Model: Cherokee Engine: 4.0 I6 Transmission: Peucrap 5 speed Transfer Case: 231 Front Axle: Dana 30 Rear Axle: Dana 44 Tires: 31x10.50r15 Lift Specifications: None yet Misc Accessories: Removable Doors, 2 door, 96 HO Motor, MIA Roof, Herculined Floors, D30 Cable Conversion, Speaker Bar	ebay... high flow cats... __________________ "A bad driver is a good driver when bad things happen" thats my quote. You know, you know what I'm talking about? That there is trademarked, not to be used without written permission of Ricky Bobby, Inc. Yep, I'm flyin' through the air, this is not good. My build page... http://www.cherokeeforum.com/f46/project-frugal-34083/ A great experiance... http://www.kaspick.net/toborg_-_ex_312_marine.htm

08-08-2009, 12:19 AM	#6
kitsapfreerider Seasoned Member Join Date: Apr 2009 Location: Appleton Wisconsin Posts: 344 My Photos 1995 Cherokee Year: 1995 Model: Cherokee Engine: 4.0 Transmission: 4 speed auto Transfer Case: 231 Front Axle: dana 30 Rear Axle: chys. 8.25 Tires: bfg wranglers Lift Specifications: stock	yep i'll just pick one up my friend said he will give me a good deal on a cat. my state doesn't require a smog test but I still want to remain legal. Does anyone know the general increase in hp and mpg for any of those products?? Last edited by kitsapfreerider; 08-08-2009 at 12:22 AM..

08-07-2009, 09:18 PM	#4
4.3L XJ CF Veteran Join Date: Aug 2008 Location: Chico, CA Posts: 2,143 My Photos 1986 Cherokee Year: 1986 Model: Cherokee Engine: 4.3L with headers and full 3" exhaust system Transmission: 4L60E with manual lockout. Transfer Case: Atlas 4 speed with 2.7, 3.8 and 10.38 Front Axle: D30 going to Toyota 8.25 with ARB Rear Axle: D35 going to Toyota 8.25 with ARB Tires: 31X10.50X15 going to 38s Lift Specifications: 7.5" RE coils on homegrown longarm, Tereflex high steer, bastard pack rear. Misc Accessories: Warn 9.5ti, a bag of goodies and custom onboard air	Summit Racing has high flow cats for around $90. I have been running one and it passed smog beautifully.

08-08-2009, 12:47 AM	#7
Abovetimberline CF Veteran Join Date: Jul 2009 Location: Chico,ca Posts: 2,156 My Photos 89 Cherokee Year: 89 Model: Cherokee Engine: 4.0 Transmission: AW4 Transfer Case: 242 Front Axle: D30 Rear Axle: D44 Tires: Junk at this point	Maybe 1-3h.p 1 mpg,you will notice something,but not alot,keep us informed.

08-08-2009, 12:50 AM	#8
kitsapfreerider Seasoned Member Join Date: Apr 2009 Location: Appleton Wisconsin Posts: 344 My Photos 1995 Cherokee Year: 1995 Model: Cherokee Engine: 4.0 Transmission: 4 speed auto Transfer Case: 231 Front Axle: dana 30 Rear Axle: chys. 8.25 Tires: bfg wranglers Lift Specifications: stock	yep i'l post pics, it should arrive on tuesday. I work at the shop that night so i'll install them then.

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