I'm sure you have great products but your instructions for pairing leads me to believe I'm going to throw some codes after this install and I can't take that chance. This should probably be a dealership install especially if a code reader is needed to clear codes!

AWESOME GAINS DEFINTLY CAN FEEL THE DIFFERENCE

Perfect fit and already noticing the engine breathe better and receiving more airflow over the stock filters

Fast shipping and great quality products.

Delivered on time and fit was perfect

Quick ship!

These fit my 2020 m550 perfectly.

Spoiler was shipped very well protected! No damage once so ever! Spoiler looks great!

Not typing again Build quality 5 stars Instructions 1 star (even the link was just a previe. Virtually no instructions, not even a step by step youtube. With no instructions this is for very experienced home mechanics that dealt with all kinds junk. Tricks of the trade, Even the valve controller had no detail install and comes with extra parts, so you have to test fit a few times. The stickers would of been great if you didn't only use 4 letters. Repeating didn't help at all. Need to tell customer they need new donut gaskets, cause used are going to cause a leak most likely. Also recommend replace downpipe to mide pile 4 nuts. Good how to to adjust, its awesome the outer have 360 rotation on ball connection. Need like go no go blocks to air in a starting point. Glad I am skilled, but if you only do basi. Maintenance. I recommend a shop.

Significant increase in torque in the ranges that I’ve been able to try it out on the street (LRP next week!). The car accelerates quickly and smoothly. Minor issues with the installation due to the difference between my engine and the one in the installation video had to be overcome.

Fast shipping

Never received item. Item was shipped and then returned back to sender claiming the address was invalid when it wasn’t. No refund had been issued.

This is the absolute worst way to spend $1000 do not waste ur money the only reason I gave them 2 stars is because they didn’t lie about how easy it was to install if I had to guess it probably puts removes horsepower from the car I tried all three settings and nothing at all

Looks good, fits well, and easy to install. I was able to install it without jacking up or lifting the car by using a 90 degree angle drill.

Great product and value. Thank you,it unleashed the beast!!