JAinVA 4,619 #1 Posted October 14, 2018 (edited) Jim Kemp let us know he was building a Nelson muffler replacement for the one on a 312.He was generous enough to send me one for evaluation.Here is what I found.Jim's muffler is very well built using a thicker shell.This shell shows no visible seam and the entire unit is about 50% heavier than stock.The inlet is set up for 1" pipe so that it can't be mounted to the stock Kohler elbow.I informed Jim about this and he is going to look into this issue.I have tested the prototype for sound quality comparing it to a pepper pot,generic replacement and stock Nelson.Sound measurements taken at the camera location show that Jim's prototype is the quietest of all 4 mufflers and 7 decibels lower than the first 2. Edited October 14, 2018 by JAinVA Add video 11 1 Share this post Link to post Share on other sites
jimkemp 525 #2 Posted October 14, 2018 Thanks for testing it , let us know how it works over time 1 Share this post Link to post Share on other sites
gsemeraro8 149 #3 Posted October 15, 2018 It looks amazing, way better and much higher quality then stock from the pictures, i would definitely purchase one for a restoration or replacement 2 Share this post Link to post Share on other sites
JAinVA 4,619 #4 Posted October 15, 2018 If you click on the little arrow under Horse you can hear it run if you haven't done so. Share this post Link to post Share on other sites
kick 59 #5 Posted October 15, 2018 Good feedback. I need to get one on order. 1 Share this post Link to post Share on other sites
jimkemp 525 #6 Posted October 15, 2018 2 hours ago, kick said: Good feedback. I need to get one on order. I will let you know as soon as they are ready to roll out 2 Share this post Link to post Share on other sites
kick 59 #7 Posted October 18, 2018 On 10/15/2018 at 5:51 PM, jimkemp said: I will let you know as soon as they are ready to roll out Ok. Thanks Share this post Link to post Share on other sites
W/H JUNKY 43 #8 Posted October 18, 2018 I would also be very interested in a couple of these 1 Share this post Link to post Share on other sites
jimkemp 525 #9 Posted October 19, 2018 On 10/18/2018 at 7:18 PM, W/H JUNKY said: I would also be very interested in a couple of these As soon as I get some feedback on these from the test mufflers that are out there I will build some more if all is well with them , stay tuned Share this post Link to post Share on other sites
jasonct 0 #10 Posted October 29, 2018 I would be interested in a replacement for a Kohler Command in my 312-8 Share this post Link to post Share on other sites
bo dawg 516 #11 Posted October 30, 2018 Id be interested too Share this post Link to post Share on other sites
IADave 1 #12 Posted April 10, 2023 Jim, are you producing this particular muffler? I have a 314 Hydro with a Kohler Magnum that I'd like to buy one for. Thanks. 1 Share this post Link to post Share on other sites
953 nut 55,212 #13 Posted April 10, 2023 Don't know if @jimkemp would see this request from a five year old thread. Scroll up to the response Jim made to the thread, put the cursor over the photo below his name and click on "Message". That will let you send him an email. 2 Share this post Link to post Share on other sites
