Hi Leonard/Loren
In April I had picked up my Yamaha YZ450 quad from Duncan Racing. You guys did the motor and everything up for me. It worked great! I had no problems all summer racing. I thought I would send you guys a note to let you know how I did.
1st overall in Intermediate in the Albert MX Provincial ATV series,
2nd overall in ATV ProAm in Alberta MX Provincial series,
1st in the Western Canadian Amateur National finals in ATV Intermediate
1st in the Triple Crown Series (ATV).
Overall I won 9 – 1st place trophies and 2 – 2nd place trophies.
I would like to thank Duncan Racing and Leonard and Loren for everything you did.

-Dylan Yuhar
Whitecourt, Alberta

My experiences with Duncan Racing all started through recommendations to co-workers who previously either bought product or had engine modifications done to their own machines. My first purchase from DR was a chrome plated Paul Turner High Rev exhaust and Fat Boy silencer for my ’85 Honda ATC 250R. As soon as I opened my package I was blown away from the quality of the chrome and once installed the performance gain was equally impressive. This led me to ship them my ’96 Yamaha Banshee for a complete top end overhaul with their National Mid-Range engine kit. I had debated on what to get done for some time and after speaking with Loren Duncan over the phone and at the service counter I explained to him what I wanted in power. He went over everything that would be done in great detail and when it came time to pick my Banshee up from their shop I was given very explicit instructions on how to properly break in my machine and properly service it in the future.
During the break in of the ATV I could definitely feel the power increase of the engine kit and was anxious to feel the full potential of the engine. Once the break in was done, it was off to Pismo Beach to let the machine rip and have the best ride since buying the Banshee from the dealer. The power increase from the modifications met and far exceeded my expectations. From that point on I had no hesitation in recommending their work to friends and even future customers of mine as a parts counterperson at a Yamaha dealership. Beyond that I became an employee of DRI in parts and engine kit sales. Being able to sell parts and modifications that I believe in because I’ve had positive experiences myself was very easy and customers liked knowing this.
Through being a customer and employee I had the chance to get to know all of the employees of the company, which are mostly family members. Because the Duncan family name is associated to the company, I feel there is more of an effort on customer satisfaction and high quality products than you’ll find anywhere else. This is why I highly recommend the company to many people that I come across.

-Eli Madero
California

My experience with Duncan Racing all started when I purchased a used 86 TRX250R that only had a Paul Turner race pipe and silencer on it.  This was the first time I heard of Duncan Racing.  I contacted Duncan Racing to find out more about them and was mailed a catalog of their services.  I was interested in their engine kits and purchased the Eliminator High Rev kit.  I was very happy with the results I got with this engine kit.  Very reliable and never had a problem.  After 10 years with this flawless engine kit it was time for an upgrade when I learned about Duncan Racings PC2000 big bore engine kits.  I wanted another flawless engine kit and new I was looking in the right place for it.  I ended up purchasing the PC2000 305cc high rev kit.  Again very happy with the results.   The performace of the 305cc high rev kit is outstanding.  Pulls hard in all 6 gears no problem. Duncan Racing has an excellent tech support and is very helpful to get the best results.  When it comes to shipping Duncan Racing has always been accurate and on time.  I will always do business with Duncan Racing because they have proven me they are the best when it comes to performance and reliability.  

-Scott Shine
Washington