Experience with the FAS PREDATOR LOWER PULLEY

cudenjc · 2026-04-30T15:12:51-0400

I plan on getting the "FAS PREDATOR LOWER PULLEY (No tune Required) Ram TRX", I just want to know how it will effect longevity, gas mileage, warranty, and if y'all notice a big jump. I just installed an s&b intake!

Nick797 · 2026-04-30T19:29:42-0400

I would say at first gas mileage will go down because you are going to be constantly flooring it with your new found power! Haha

Haven't had anyone experience any long term issues with something like this.

HDMLNIUM · 2026-04-30T19:44:18-0400

I have one installed on my truck, it made a nice difference and have had zero issues for over a year since the install.
I say go for it...
Bill

Louk · 2026-04-30T19:47:14-0400

Warranty is going to be how friendly your dealer is. No tune works in your favor, but you are still adding power which is an easy button for them to turn away an engine/driveline repair.

cudenjc · 2026-04-30T20:34:52-0400

Louk said:
Warranty is going to be how friendly your dealer is. No tune works in your favor, but you are still adding power which is an easy button for them to turn away an engine/driveline repair.

Quick question, are you running 37s or 35s?

cudenjc · 2026-04-30T20:35:25-0400

Nick797 said:
I would say at first gas mileage will go down because you are going to be constantly flooring it with your new found power! Haha

Haven't had anyone experience any long term issues with something like this.

Nick do you have 37s or 35s?

HDMLNIUM · 2026-04-30T21:11:27-0400

I run 37x13.50 on mine with the predator pulley..
Bill

cudenjc · 2026-04-30T21:51:07-0400

HDMLNIUM said:
I run 37x13.50 on mine with the predator pulley..
Bill

how does it drive? gas mileage any loose steering or wandering? only asking because I come from a jeep platform prior to this

HDMLNIUM · 2026-04-30T22:03:37-0400

cudenjc said:
how does it drive? gas mileage any loose steering or wandering? only asking because I come from a jeep platform prior to this

I think it drives fine. I did add the helwig rear sway bar and the 1.6" Eibach pro lift springs in the front. I have had it up to 144 mph it is a little floaty at full throttle and higher speeds but very controllable.
I average in the low 8 mpg around town and if on a decently long highway drive I have hit very low 11 mpg. Didn't really change the gas milage too bad.
Bill

FULLTHROTTLERICK · 2026-04-30T23:46:59-0400

We’ve run predator and S&B for like 2.5yrs now. Only issue is occasional pulley squeal from the belt walking off center. Takes 3 seconds to remedy. 0 regrets

cudenjc · 2026-05-01T08:10:30-0400

HDMLNIUM said:
I think it drives fine. I did add the helwig rear sway bar and the 1.6" Eibach pro lift springs in the front. I have had it up to 144 mph it is a little floaty at full throttle and higher speeds but very controllable.
I average in the low 8 mpg around town and if on a decently long highway drive I have hit very low 11 mpg. Didn't really change the gas milage too bad.
Bill
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did the hellwig rear sway kit make a big difference?