Looking for performance upgrades.

[Brian08]

What do you guys suggest trying to get little more out of the Rubicon. I want to swap the exhaust looking for a good rumble if possible. Also suggesting on how to get little more HP out of it.

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[millerjl]

I had the mopar CAI on my JK and will likely get it for my JLU. I know people dispute the actual impacts but from my experience, it gave a nice growl to the engine, improved the HP a bit and improved mpg by about 1.

 

[Brian08]

Did you do any exhaust of the just the CAI ?

 

[millerjl]

Did you do any exhaust of the just the CAI ?

Just did the CAI. It doesn't set off car alarms but does give a good growl IMO. The JLU Mopar CAI latest ETA is September.

 

[Brian08]

Just did the CAI. It doesn't set off car alarms but does give a good growl IMO. The JLU Mopar CAI latest ETA is September.

Seems like Mopar should have these parts out when the Jeep came out.

 

[Alf1096]

Go drove a jk for a few days then come back and you will be happy. Lol. I think all of the bolt on stuff will have very little impact but if you think it does good or like the sound go for it. I would be careful with a CAI and dirt. To me not worth the warranty issue.

 

[seguerski]

Just did the CAI. It doesn't set off car alarms but does give a good growl IMO. The JLU Mopar CAI latest ETA is September.

The Mopar CAI or aftermarket? Did you cut a hole into the hood?

 

[NFRs2000NYC]

You're wasting your money. None of the bolt ons are going to help with performance. If you want more get up and go from your jeep, save your money and regear it.

 

[millerjl]

The Mopar CAI or aftermarket? Did you cut a hole into the hood?

Mopar CAI, had the dealer install it and there was no hole in the hood.

 

[millerjl]

Seems like Mopar should have these parts out when the Jeep came out.

Lots of parts for the JL on "backorder". Some members have waited months for repair parts...

 

[millerjl]

Go drove a jk for a few days then come back and you will be happy. Lol. I think all of the bolt on stuff will have very little impact but if you think it does good or like the sound go for it. I would be careful with a CAI and dirt. To me not worth the warranty issue.

If you get the Mopar CAI and the dealer installs it, no warranty issue... that I am aware of. At least that's according to the dealer I have been buying jeeps from for 10 years or so. Could be they just like my money

 

[NFRs2000NYC]

You are sadly misinformed. If you have ANY engine issues, rest assured, your CAI will be blamed, and any engine warranty work will be denied. FCA has done it to many many members on various forums. A CAI on a jeep is basically a death sentence to your warranty on the engine. I wouldn't install a CAI on my jeep if it gave me 100hp at the wheels and 120ft/lbs of torque.

 

[VolCntry73]

Just my opinion, but if you are wanting a "good rumble" out of a jeep, either your search will never end or you will need to convert to a V8. Unless you don't mind a "bumble bee" type rumble. But no matter what you do, a V6 or V4 will never sound like a V8. I will be interested to hear Borla's touring model for the JL, but my guess is...it will still sound like a v6.

As for performance upgrades...instant HP can be gained from a Supercharger. Ripp and Sprintex are suppose to be very good. https://www.rubitrux.com/jeep-superchargers.html. Based on installation videos, they are not too complicated to install. I was looking at installing one on mine once it has some miles on it. The manufacturer suggests not to install on a jeep with under 1000 miles. Please note, while the Sprintex is removable, I'm not sure if the dealer can tell if you have had it on. It's a big gamble with a new year model though, so there is risk involved. But it will definitely give you added performance. I'd love to put one on...but I don't know if I want to risk the warranty for a while.

 

[WXman]

Getting rid of the horrendous crimped pipe over the rear axle and the 90° inlet into the factory muffler and replacing it all with mandrel bent smooth pipe and a direct inlet/outlet flow through muffler will free up some horsepower. On the dyno I would expect 10-15 from that change alone.

Then you could get a good tune and probably open up a little more power running 93 octane pump gas. These Pentastar engines LOVE higher octane fuel even in stock form.

The Challenger version is rated 305 HP and basically the exhaust and tune are the only key differences.

 

[Biscuit]

On the dyno I would expect 10-15 from that change alone.

Then you could get a good tune and probably open up a little more power running 93 octane pump gas. These Pentastar engines LOVE higher octane fuel even in stock form.

You can also crap in one hand, wish in the other and see which one fills up the quickest, too. Or just drive down the road and throw dollar bills out the window.

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