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Unread 07-11-2003, 02:26 PM   #1
Jas
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What Exhaust system should i get?

Hey i'm pretty new to working on cars and need some help. right now I have a completely stock 98 Jeep Grand Cherokee 4X4. I want to put a new exhaust system in, but i need some tips on which system to get. Also what are some good mods i can do to gain some hp for not alot of money. I want my jeep to be quicker on the exceleration and need some help with that. I plan to put in a new intake aswell.

Thanks

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Unread 07-12-2003, 11:55 AM   #2
RockPaws
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I have run different exhaust systems through the years. My favorite is the Borla cat-back (www.borla.com). It has a nice low rumble tone, stainless steel design, and workmanship is great. Second, would be a FlowMaster, they have good sound, but the draw back is,it's not stainless steel.
As for the intake; K&N (www.knfilter.com) has the FIPK (fuel injection performance kit). That may be only for the V8 engines, you'll have to check. I have used K&N filter forover 15 years on all my vehicles. Just follow the cleaning instruction to the letter. Their web site has some good tips.
Start with those, you will notice a HP gain, and maybe a mileage increase.
Frank.
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Unread 07-12-2003, 01:50 PM   #3
Jas
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Thanks for all the info, My jeep is a V8 so that wont be a problem, also this is going to sound like a silly question but how do i find out what size engine i have. i can't figure out if its a 4.0L 5.2L or a 5.9L? Also how hard is it to install a FIPK, could i do it myself or does it need to be professionaly installed.

Thanks
Jas
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Unread 07-14-2003, 12:38 AM   #4
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Well, If you don't have a Grand Cherokee 5.9 LTD & you know you have a V8. Then you have a 5.2 Liter. The 4.0 is the strait 6 cylinder motor.
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Unread 07-14-2003, 10:51 AM   #5
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The K&N FIPK should be very straight forward to install. If you are an average "backyard" mechanic, you should not have a problem. If you have a friend who is good working on vehicles, have them come over and watch just to make sure. Never hurts to have a second set of eyes looking it over.
One tip on removing the factory air filter box. The 3 bolts that hold it in place don't come out from the top (or inside the assembly). Remove the 3 nuts on the bottom, they are located in the forward part of the wheelwell. You will need to hold the top part of the bolts in the assembly. If you just try and remove the upper bolt, it will probably break.
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Unread 07-14-2003, 11:00 AM   #6
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Welcome to the forums.

By the way, take some time to email Nick Kolak at kolak@aol.com. He is a engine guru.

You can also look at www.jeepsunlimited.com/forums under the speed freaks for engine mods.

Hunter


I have the turbocity dual air intake and the magnaflow performance exhaust with the Mopar performance computer.
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Unread 07-14-2003, 11:36 AM   #7
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Re: What Exhaust system should i get?

Quote:
Originally posted by Jas
Hey i'm pretty new to working on cars and need some help. right now I have a completely stock 98 Jeep Grand Cherokee 4X4. I want to put a new exhaust system in, but i need some tips on which system to get. Also what are some good mods i can do to gain some hp for not alot of money. I want my jeep to be quicker on the exceleration and need some help with that. I plan to put in a new intake aswell.

Thanks
I went from stock to Flowmaster 2 chamber Duals, with K&N filter......sounds great. And it does add some horsepower.
I've had no problems.. I have heard many good things about the Borla system as well.
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Unread 07-15-2003, 11:02 PM   #8
Scottolan
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I personally love Dynomax mufflers.. I have had Flowmasters and the drone just kills me!!! the 2 and 3 chambers both drone.. I finally went and got some Dynomax bullets (look like old school glasspacks but better design) and I love them!!! I have them on my 88 Mustang 5.0 A good choice for your truck would probably be the Ultraflow Welded by dynomax or Ultraflow Round... you can check them out and they also have sound files at www.dynomax.com

PS little tidbit of info: Dynomax's parent company is Walker who also makes the Thrush line of mufflers and also Flowtech mufflers and other exhaust parts like headers...
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