Echo 590 muffler modification. for porting and service info visit our website https://worksaws. Upgrade your chainsaw today! Testing timing advance, and muffler mod on the popular 60cc echo offerings. 2K views 1 year ago muffler mod on the Echo cs590 I bought off market placemore Echo CS 590 Timberwolf with Muffler Mod and Base Gasket Delete (first run) #chainsaw #awesome 5 Dislike 0 Aug 26, 2025 · Boost your Echo CS 590’s power! Discover 5 pro muffler mod tips for better woodcutting performance. Advance the timing. Jan 22, 2026 · I just purchased an Echo CS-590 from my local dealer this past week. I've been reading a bit on this forum and it sounds like this saw has a pretty high resistance muffler so many folks have done a "muffler mod" to make it flow better. I hope you enjoy the video we had fun making it! Add some extra displacement, compression or help your chainsaw breathe better! Big bore cylinder kits, pop-up pistons and dual port mufflers for Stihl, Husqvarna, Makita a Dolmar chainsaws. It's been upgraded a bit since I last posted CS-590 muffler Flow numbers in 2016. I purchased it last week at Home Depot. . Let’s explore five Aug 18, 2016 · I recently acquired an Echo CS-590 Timberwolf Chainsaw. Nov 28, 2008 · Testing was performed on my SuperFlow SF-110 Flow bench. Ideal for Timberwolf models CS-590, 600, and 620. Here's the really nicely designed exhaust outlet deflector that Matt has created. However, like many stock chainsaws, its performance can be improved with a simple modification: the muffler mod. Run premium gas & retune. comfor the muffler I got the echo dual dogs on mine, and full wrap handle, plus the muffler mod, which is just drilling a hole inside the muffler and cutting of the deflector under the spark arrestor screen. Jun 19, 2025 · Echo CS 590 Muffler Mod: 5 Pro Tips for Better Woodcutting The Echo CS 590 is a workhorse of a chainsaw, known for its reliability and power. We run head to head with the 590 and 261. It was a "return" I give an overview of how to muff mod the saw an retune. Made in the USA. 020” off the keyway with a file. Retune carb. Difficult: Delete the base gasket, which means pulling the cylinder off of the crankcase and thus pretty substantial disassembly. Check out how not to mod a chainsaw muffler but build a super cool exhaust pipe instead. Nov 30, 2015 · I hesitate to do any muffler modifications on most saws without some direct testing involved. Opened up mufflers can do nothing more than increase noise level, and not increase engine power in the least. I also read something about the saw running lean in stock form, I didn't catch if that was lean at certain RPMs or throughout the operating range. Here's my saw. It has been designed to maximize the exhaust flow/volume yet still fit under the stock plastic and exit in the stock direction. As promised, I intend to measure the muffler on my flowbench and then measure the incremental improvements as a result of the common "muffler mod" alterations. Easy: Open up the muffler. Aug 18, 2016 · Echo CS-590 Timberwolf Muffler Mod - Flow bench Measurements Team FAST Aug 18, 2016 cs-620 cs-620pw echo cs-590 echo cs-600 flow bench mastermind muffler mod porting team fast Help Support Arborist Site: Donate Feb 15, 2026 · Enhance your Echo CS-590 chainsaw's performance with the durable dual port muffler exhaust. Mufflers are for th Jan 2, 2016 · i had a 590 a few months ago and it was down right nasty did a base gasket delete went whole hog on the muffler pulled the limiters and replaced the limited coil in it from a 620pw. Moderate: Pull the flywheel off and shave ~. Jan 22, 2026 · Upgrade your Echo chainsaw with a modified performance exhaust for models 590, 600, and 620. Feb 3, 2022 · Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. A muffler mod allows the engine to breathe easier, resulting in increased power and improved throttle response. Mar 22, 2023 · Echo CS-590 muffler mod and custom exhaust pipe. Enhance power and durability for all your wood cutting needs. Subscribed 106 9. anc jsh qok evu pfw snq zzn uoi szq dkk guh rwf hrk ckk rmv