AMUR Reaver produces very nice resin products. As Wouter has stated, the parts are clean, with sharp detail and fit well. The G-10 cowling requires some surgery of the kit fuselage to accommodate the new cowling but the instructions tell you where the cuts need to be. Careful cutting, dry-fitting and adjustments need to be made and the lower part of the cowling need to be faired in with putty but this is expected with this type of resin addition.
It takes some effort to get these types of resin mods into place but the results are worthwhile. Here are a few photos of the AMUR Reaver G-10 cowling on the finished model.
Unfortunately, the photo links on my G-10 build have been broken due to the change at Postimage. I know it is a hassle but you can still right click on any photo, copy the image address, paste it into a new browser tab and replace the *.org with *.cc to see the photos.