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Unread 02-03-2004, 09:31 PM   #1
Saleen4971
Registered User
 
Join Date: Jan 2004
Location: Setauket, LI
Posts: 236
got my 94 ZJ today, and did my first mod



removed the air silencer. all i have to say is, the 5.2 is better than my 4.0 in every way. i love this car. hollowed cat and a flowmaster muffler sound GREAT!!!

__________________
1998 5.9 Limited
ET: 14.3@94MPH

Engine/Trans
- Full Kolak Exhaust (ML's FM70) - FIPK2 - APS 52mm TB - MSD Blaster SS - A3923's - Magnecor's - MP ECU - 180 robertshaw t-stat - Relocated IAT - E.H. M1 - B&M Trans Cooler

Susupension/Brakes
- Addco 1.25" Military front & 7/8" rear sways - Edelbrock IAS shocks - OME S.S - Stilens Front & Rear

Coming Soon :
Level10 Stage 3 46RE - WJ knuckle conversion
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Unread 02-04-2004, 09:54 PM   #2
BLUEJEEPMAN
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Join Date: Mar 2003
Posts: 31
Why remove air silencer?

Quote:
Originally Posted by Saleen4971


removed the air silencer. all i have to say is, the 5.2 is better than my 4.0 in every way. i love this car. hollowed cat and a flowmaster muffler sound GREAT!!!

Is there any advantage to removing this air silencer?
__________________
1994 ZJ I6 4.0 NP249 (Quadratrac)
Carsound Hi-FLow cat.
3" Rancho Springs with 2" Tomken spacers
31" BFG T/A KO's
40 Series Flowmaster
Kevin's Tow Points
Cobra DXII 40 Ch. CB Radio
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Unread 02-04-2004, 11:34 PM   #3
gpinzj
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Join Date: Feb 2004
Posts: 97
air silencer?

What is an air silencer. forget the box filter, cold air intake is the way.
__________________
Luke.
'94 GRand Cherokee
5.2L v8
33x12.5 BFG mts on black steel rims
Rusty's 4" with 1" 3/4" spacers
Rusty's ajustable control arms all around
Rusty's front ajustable track bar and frame mount
JKS swaybar QDs
bushman steel roof rack
kcs and piaas
Bosch all aroun
Flowmaster 40 serise
stage 1 & 2 jet chip
and K&N cold air intake
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Unread 02-04-2004, 11:38 PM   #4
gpinzj
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Join Date: Feb 2004
Posts: 97
removing the air silencer

Sure there are benifits, but not in performance. the air silencer run from the back of the grill to the box filter. by removing it you can prevent les water mud and dust from being sucked into the box.
__________________
Luke.
'94 GRand Cherokee
5.2L v8
33x12.5 BFG mts on black steel rims
Rusty's 4" with 1" 3/4" spacers
Rusty's ajustable control arms all around
Rusty's front ajustable track bar and frame mount
JKS swaybar QDs
bushman steel roof rack
kcs and piaas
Bosch all aroun
Flowmaster 40 serise
stage 1 & 2 jet chip
and K&N cold air intake
gpinzj is offline  
Unread 02-05-2004, 01:38 PM   #5
Saleen4971
Registered User
 
Join Date: Jan 2004
Location: Setauket, LI
Posts: 236
im going to get a K&N cone filter eventually, and make my own heat shield for it.
__________________
1998 5.9 Limited
ET: 14.3@94MPH

Engine/Trans
- Full Kolak Exhaust (ML's FM70) - FIPK2 - APS 52mm TB - MSD Blaster SS - A3923's - Magnecor's - MP ECU - 180 robertshaw t-stat - Relocated IAT - E.H. M1 - B&M Trans Cooler

Susupension/Brakes
- Addco 1.25" Military front & 7/8" rear sways - Edelbrock IAS shocks - OME S.S - Stilens Front & Rear

Coming Soon :
Level10 Stage 3 46RE - WJ knuckle conversion
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Unread 09-21-2009, 09:47 PM   #6
CaptainZJ
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1994 ZJ 
 
Join Date: Sep 2009
Location: Three Rivers
Posts: 34
Quote:
Originally Posted by gpinzj View Post
Sure there are benifits, but not in performance. the air silencer run from the back of the grill to the box filter. by removing it you can prevent les water mud and dust from being sucked into the box.
How well do the Jet chips actually work?
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Unread 09-21-2009, 09:54 PM   #7
Kruzin
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1993 ZJ 
 
Join Date: Aug 2007
Location: Casper, WY.
Posts: 3,144
Hollowing out the cat IS a federal offence, and highly frowned upon around here.
__________________
DD: 98 ZJ Laredo 5.2, all stock

Wheeler/Beater: 93 ZJ Laredo
4.0, AW4, 231 conversion from 249
3" coil lift, JKS Adjustable Track Bar, JKS Quicker Discos, KOR lwr rad supt, Brush guard
Colorado Jeep Club Member 242 (4.0L)
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Unread 09-21-2009, 09:56 PM   #8
CaptainZJ
Registered User
1994 ZJ 
 
Join Date: Sep 2009
Location: Three Rivers
Posts: 34
Quote:
Originally Posted by Kruzin View Post
Hollowing out the cat IS a federal offence, and highly frowned upon around here.


Good thing I don't even have one. I wouldn't want to get in trouble.
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Unread 09-21-2009, 09:59 PM   #9
Kruzin
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1993 ZJ 
 
Join Date: Aug 2007
Location: Casper, WY.
Posts: 3,144
Quote:
Originally Posted by CaptainZJ View Post


Good thing I don't even have one. I wouldn't want to get in trouble.
If you don't have one, you've modified your vehicle's emmissions equipment, in violation of federally mandated emmissions laws. Just as Illegal.
__________________
DD: 98 ZJ Laredo 5.2, all stock

Wheeler/Beater: 93 ZJ Laredo
4.0, AW4, 231 conversion from 249
3" coil lift, JKS Adjustable Track Bar, JKS Quicker Discos, KOR lwr rad supt, Brush guard
Colorado Jeep Club Member 242 (4.0L)
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Unread 09-21-2009, 10:04 PM   #10
CaptainZJ
Registered User
1994 ZJ 
 
Join Date: Sep 2009
Location: Three Rivers
Posts: 34
Quote:
Originally Posted by Kruzin View Post
If you don't have one, you've modified your vehicle's emmissions equipment, in violation of federally mandated emmissions laws. Just as Illegal.
It was intended as sarcasm, don't worry bud, I'm running stock exhaust.
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Unread 09-22-2009, 12:52 AM   #11
jeepheller98
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1998 ZJ 
 
Join Date: Mar 2008
Location: park ridge
Posts: 1,089
Quote:
Originally Posted by CaptainZJ View Post
How well do the Jet chips actually work?
they dont, your computer learn their way around them very shorty and your back to stock
__________________
98 ZJ 3" lift homemade snorkel. JKS quicker disco 5.2L 150,000, 31x10.5 pro comp muds
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