Quote:
Originally Posted by Sophisticated Redneck
As for how it changes the feel, it is like having a different engine, hard to explain, so much more responsive and the when you go past half throttle it just keeps pouring on the power. They claim 100+hp increase and I believe it. Stock 0-60 was around 6.7 seconds when I bought the truck with nearly 100k on it. After fixing transmission issues and carbon cleanup on the valves, it was 5.6 seconds which is what a new 50i did. After tune it dropped it to 4.4 seconds (4.2 with 1foot rollout) on my draggy. I do have downpipes too. But the 5.6 to 4.4 times only change was the tune. With a custom intake I am building, the exhaust cutouts I just added, Aplina Intercoolers I installed, and stage 2 tune I will load when it cools down plus XHP tune for transmission (when it comes out), I am hopeful for a 3.5 second 0-60 and high 11's, maybe mid. Will add jb4 and meth stacked on tune if needed.
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I think realistically you might be able to get mid to high 12s. It's not going to hit 11s. An X5M with more HP can't run those times. I would expect my 335 with 500 HP to break into the 11s, but that is super light compared to a X5.
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2008 335xi - JB5 ISO e50, VFSR catless DP, DCI, VFSR FMIC. Fuel it stage 1, VMR V710s. 407/446 rwhp/rwtq.
2004 Cobra - Basic bolt ons with a tune. 450rwhp/rwtq450. Port coming soon.
2013 X5 50i - muffler delete, xHP tune, ESS tune on the way.
2016 Mustang GT Roush Phase 2 with VMP 767 HP kit.