Great product great customer service. Bought this thermostat for a 600+hp 335i and it regulates temperature to a T. The car never had a oil cooler before and even now with 2x 20row coolers the car warms up just as quick. The straight through design is genius and hasn't let up once on track days or everyday on the street . Very happy with this product and have recommended it to anyone in the market for one.

Excellent Products, Fast Shipping This is one of a few vendors of automotive parts (Fore, Radium, Science of Speed also come to mind) who sell unique, high-quality parts and has a fantastic staff to back them up. I had a problem with a couple of orders placed back to back because I was in a hurry and ordered the wrong things. They fixed them both, combined them to save shipping charges, and shipped everything that same day. I have bought a handful of things from Improved Racing and they are always well packaged, well documented, and look fantastic.

I am very happy and impressed! I am impressed! Very nicely made oil cooler adaptor. Machining is gorgeous as well as you anodizing. I love all the products you sell. Presentation, quality and design are outstanding. One stop shop for all my oil cooler needs. This is where I will shop hands down! Thank you for making these parts and including the killswitch tag! I don't put any decals on my car mainly not to advertise but IMPROVEDDDD is on my side window :) Looks great on my 2015 1LE

Shipped extremely fast and cater to overseas soldier Shipped extremely fast. This company shipped to a U.S soldiers living at APO address overseas. Thank you for having that option. A lot of car companies don't ship APO because they believe it'll cost the company extra even tho it's actually considered a U.S territory address.

Great Product, and great customer service! Ordering from abroad (Greece), Improved Racing answered every one of my e-mails and questions almost immediately. They gave me good advice on my setup, (before and after I placed my order) and I cant wait to get the thermostat plumbed into my oil cooler setup. Also the thermostat was posted ASAP, and I received my order here in Greece only a few days after ordering. Great stuff! Will definitely be using them again!