Exhaust work

N

NiceXJ

NAXJA Forum User

Location

Arkansas

• Sep 4, 2006

• #1

I was wanting to know about a good sounding exhaust for the 4.0. I've currently got a high performance magnaflow cat straight with a 3.5 tip. It rumbles and i like it but i didnt know if there is something better. I dont want a high whine or for it to sound like a pissed off bumble bee. Would a header and bigger piping help or what?

 

C

cassio

NAXJA Forum User

Location

san antonio, TX

• Sep 4, 2006

• #2

flowmaster is the way to go in my opinion

if u just want it to be loud cut the exahst off
but if u want ur jeep to run well and add some ponies then a flowmaster, high flow cat,and headers is a great way to go

cas

 

N

NiceXJ

NAXJA Forum User

Location

Arkansas

• Sep 4, 2006

• #3

if i bump it up to 2.5 pipe will that help also or bigger or what

 

D

Dr. Dyno

NAXJA Forum User

Location

Al Ain, UAE

• Sep 5, 2006

• #4

NiceXJ said:

I was wanting to know about a good sounding exhaust for the 4.0. I've currently got a high performance magnaflow cat straight with a 3.5 tip. It rumbles and i like it but i didnt know if there is something better. I dont want a high whine or for it to sound like a pissed off bumble bee. Would a header and bigger piping help or what?

Click to expand...

A header does help to mellow the sound from a high flow muffler. A Thorley header, custom 2.5" downpipe, 2.5" high flow cat, Magnaflow muffler, and 2.5" tailpipe would meake a great combo behind a 4.0.

 

R

rocklandxjer

NAXJA Forum User

Location

North Rockland, NY

• Sep 5, 2006

• #5

i think 2.5 is the biggest you can go on the 4.0 w/o losing power. i agree with every one else too, header, high flow cat, id say flowmaster, and a nice straight tailpipe

 

J

jeepsrock

NAXJA Forum User

Location

LA California

• Sep 5, 2006

• #6

Slap on a flowmaster 40 or 50 series and be done with it. The 40 is louder than the 50.

goodluck
pete

 

I

IcedXJ

NAXJA Forum User

Location

Spokane Washington

• Sep 5, 2006

• #7

2.5" piping is the best for the 4.0L
I had Dynomax on mine, and man did I love it.

 

B

bobb

NAXJA Forum User

Location

nd

• Sep 6, 2006

• #8

I bought the Rusty's exhaust a while ago, 50 series Flowmaster I think? Switched to a Dynomax Super Turbo and liked the sound better. Not a big difference, but less raspy/more mellow, and quieter inside.

 

M

Meanie5470

NAXJA Forum User

Location

Lavallette, NJ

• Sep 7, 2006

• #9

dynomax super turbo catbacks are also only like 95 bucks. Cheaper then having a shop make you an exhaust and its all mandrel bent. Sold.

Does anyone have a sound clip of a 4.0 with a dynomax system?