Jeep 4.0L Exhaust Sound

Sn95Snake

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4.0L is one of the best engines made imo.


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Couldn't agree with you more, I wish they would have just improved them for the JKs instead of the minivan 3.8 and the Penstar 3.6.

While the Penstar isn't bad, it just doesn't have the same low end grunt that the 4.0 did. Also I would be willing to bet the 4.0 would outlast the 3.6 no questions asked.
 

KyleSVT

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4.0L is one of the best engines made imo.


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I agree

Couldn't agree with you more, I wish they would have just improved them for the JKs instead of the minivan 3.8 and the Penstar 3.6.

While the Penstar isn't bad, it just doesn't have the same low end grunt that the 4.0 did. Also I would be willing to bet the 4.0 would outlast the 3.6 no questions asked.
Absoultly! You would think by now they would have gone with a V8 in the wrangler vs the gutless V6 especially at the price point of the 4 door Rubicon in the 50k+ price point
Also sounds good OP!
Thank you!
 

Sn95Snake

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I agree


Absoultly! You would think by now they would have gone with a V8 in the wrangler vs the gutless V6 especially at the price point of the 4 door Rubicon in the 50k+ price point

Thank you!


Yeah it would be nice, we currently have a 2012 JKU on 37s and don't get me wrong it is definitely quicker then my TJ on 33s was. But for what it is, it is absolutely underpowered.
 

xblitzkriegx

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You just need 5.13s for the V6 to get in the powerband, lol. Don't fear the gear!

The i6 should outlast the V6, harmonics and all.
 

CobraBob

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Solid engine. Sounds great. Funny, I just saw a 4.0 Jeep last night at Costco. He did have exhaust mods, and it sounded really nice. Turned my head!
 

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