These guys know what they are doing. I purchased oil cooler thermostat for my E36, works flawless. Parts arrived early, very good quality and thought out design.

I purchased sway links for my Mazda RX7 though them online. There online order system was very easy to use and I received exactly what I ordered. Always a concern when ordering something online. The parts are very high quality and I will be looking to get more from them in the future. Also a couple of years back I ordered an accusump oil accumulator and trap door LS1 oil pan baffles. They have been on my car for a couple of years and working great. Highly recommend this company for anyone looking for high quality performance parts.

I had ordered the wrong part on accident, and the way Improved Racing dealt with my complications was second to none! Scott was great help over the phone and helped me get the right parts. Shipping was fairly fast as well. I would recommend buying from them. Thanks guys!

I would highly recommend ordering custom oil coolers lines from Improved Racing. I had two custom raceflux lines made. I am so happy with the quality and fast service. I have been looking for a custom AN line maker and was tired of the SS brained lines. The raceflux lines are far superior. Thanks!

You guys are awesome with tech support!!!!! Made an order at night next morning got a call to sort everything out. I will definitely refer as many people to your company as possible. Thank you!

Improved has some excellent parts, the staff knows the product, and everything ships quick. You cant ask for more than that.