Flowmaster 70 on Grand Cherokee 4.0

The flowmaster 70 helps 4.0 I6 in the ZJ sound a lot more powerful while not being too loud. It helps the vehicle pull noticeably harder above 3000RPM.

Category:

Autos & Vehicles

Tags:

• Flowmaster
• 70
• 1998
• Jeep
• Grand
• Cherokee
• 4.0
• FIPK
• 0-60
• I6

[07RedRider400]

BTW did u put in just the muffler or did u make any other changes?

[spicedhamlsh]

@07RedRider400 Thanks for the compliment. It is just the muffler- although I have a K&N intake too.

[07RedRider400]

@spicedhamlsh is it the 70 series big block 2? and what size of the muffler did you use? sorry about all the questions

[spicedhamlsh]

@07RedRider400 I ordered it through a muffler shop and only know that it is the Flowmaster 70. It looks to me like the "Big Block 2" is the only 70 series they make, but I'm not an expert.

[obxjeepguy]

I am looking for a QUIET free flowing exhaust. I know that is a contradiction. I have been considering this muffler for my 4.0 ZJ.

I want it to be quiet INside the Jeep. I could give a damn about what it sounds like outside.

[spicedhamlsh]

@obxjeepguy In my 3 years with the Flowmaster 70 on my 4.0 ZJ, it has done just that. It's got a little bit of a growl when you goose it from a stop, but it is pleasant and not obnoxious. It's just enough so that when you have the windows down you can hear it but when the windows are closed it sounds pretty much stock.

[skylek]

I would have laughed my ass off if someone had stolen the camera while you drove away.

[dirf69]

badass good video

[07RedRider400]

@spicedhamlsh i have a cold air intake on my 01 cherokee also, and ill probably go with the 70 series thanks to this video, its not too loud and not raspy like the series 40 and 44.

[07RedRider400]

this is the best exhaust note video ive seen by far, nice

[tilley9898]

Can you tell me where you got the flowmaster 50? And how for how much? Is it just the muffler or whole exhaust? Do you got a cat on?

[perrythekiller]

diesel