Magnum – Bringing you high performance at an affordable price for more than 20 years! During that time the line has grown and expanded to offer a full line of 4-stroke engines. All are made from the finest materials on the latest machinery. Plus, you get the added security of a full two-year unconditional warranty that protects you from any manufacturing defects and or premature wear (crash damage not covered). For reliability, high quality, and performance the choice is MAGNUM!

Select the bigger XL-91 RFS for those "60-to-75" size aircraft which accept four-stroke engines and need the extra punch that the bigger displacement gives. The XL-91 RFS idles beautifully, transitions without hesitation, and gives you the torquey full-throttle power you need for wild aerobatics.