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I have 37” KO2’s that struggle for traction with Goosetuned E85 tune when in 2wd.

Awesome! Great work Winfield!

I bought a 2018 w/ 81,000 miles for $39,990 in September 2023. I know the 2019+ shocks are more capable off-road, but with 95+ percent of my time being on-road, I preferred the cushy suspension on the “dumb” suspension of my 2018.

Wow that’s some travel!

Is the smoke white or blueish white? What does the exhaust smell like? Sweet smell or smell more like oil?

Hope it goes great! Good thing is I had 40+k miles, the most of which were in Alaska and zero issues once I made those changes. It was extremely inconvenient having the belts jump, tear, especially when the tensioner would shear off! I ended up avoiding going WOT to avoid the headache of being...

Hope this helps!

I had a 2013 Roush Stage II. 160k miles, all supercharged. The drivetrain held up. I had a period of significant issues with the 2013 serpentine belt configuration that was resolved once I removed a ribbed idler pulley (not present on the 2014 kits) and a tune from VMP. That said, I was pretty...

Yes. I was nearly jumping or tearing a belt, or outright shearing tensioner arms in half each and every WOT 1-2 shift in 4wd High. I had 40k+ of zero issues after removing the ribbed idler after discussion with JDM and VMP. The additional ribbed pulley results in a micro-ratcheting effect on...

Can I fit 37’s?

Post in thread 'POSS GEN 1 Owner Roush stage 2' https://www.fordraptorforum.com/threads/poss-gen-1-owner-roush-stage-2.75876/post-1480663

Post in thread 'Roush serpentine belt' https://www.fordraptorforum.com/threads/roush-serpentine-belt.35483/post-1862955

Hope this helps. FYI, remove the ribbed idler pulley.

Post in thread 'Roush serpentine belt' https://www.fordraptorforum.com/threads/roush-serpentine-belt.35483/post-1863376

I almost got the AT3W but then 1) I compared weight and 2) crazy good deal on the 37”KO2.

Not on a Raptor. I have had them on another vehicle, including wife’s current vehicle (2019 Nissan Armada).

I was off .43c/tire.

I tossed on a set of FP BFG KO2 37x12.50’s in mid-November 2023. I couldn’t be happier, especially at the price ($367.50/tire). They only weigh 65lbs as well…

Similar to me how the Ridge Grapplers did in snow and ice. They wore pretty well and were much more quiet than expected but they were no beuno in cold weather, slush, snow and ice (KO2’s are not good in ice either).

I put on some 37” KO2’s six weeks ago. Absolutely no regrets on it and got them at a killer deal ($370/tire). Not sure about 39’s but I am sure that would have suspension (lift) work as a prerequisite. I have had some spirited driving with some suspension travel but haven’t jumped it. No rubbing...

Winfield was outstanding to work with through the process! His customer service was next level. My main concern now is I’ll be moving onto upgrading to his PowerMax turbos next summer!

Check your thermostat. It may be leaking under your intake manifold.