Via Xoutpost Forum
just wanted to post a quick review of my X5m and the recent mods; Renntech tune and Akrapovic catless downpipes.
I sent out my ECU(which probably takes 10mins to remove does have three tricky clips you have to unclip) once i took it out, sent it out to Renntech and got the ECU back, the day after they received it.
The car was completely different! Acceleration in the low range was much better, throttle response was def improved, and overall the car accelerated much quicker, in really wet conditions it def wants to break traction in 1st!
Three days later, I recieved my Akrapovic catless downpipes; got them installed which was a pretty labor intensive job the shop said. They kept the car overnight and I got it back the next day.
After getting into the car, i started it up and expected to hear a big difference, nothing, so as i drive away i floor it and you really hear a HUGE difference after 3.5k even with the M mode off, the car just opens up and it screams. With the M-Mode on its even louder, i couldnt imagine having exhaust, downpipes are def enough.
The sound is amazing! At redline it does have that raspy-pop that all of our X5ms have when you shift, so that def gets louder with the DP's. But overall the car just screams power, and i love the sound.
As far as performance just with this tune and the catless DP's the car is an animal! It flies! I mean the thing pulls, I i live in Seattle, and the car now literally breaks tractions when wet, in 1st and 2nd gear with just a twitch of the steering wheel you can lose traction if its wet lol I also own the e63 m6 v10 with a bunch of bolt on mods(headers, ecu, full exhaust, intake, pulleys) and even though the v10 does fly and has a crazy amount of power esp with the high rpms.
I can truly say that this x5m in a way scares me the fact that its such a big vehicle but flies like this is crazy! Once u open it up,it just gets up there so fast!!
I love it!
Thanks Jesse at Renntech for providing me with the ECU tune and akrapovic downpipes.