8.8hp ported ms400cm with upgraded air filter an more muffler mod did it gain more hp?

Chainsaw muffler mod! Gain more HpПодробнее

Ported Stihl MS 660 muffler modПодробнее

Stihl MS 250 Real muffler mod Massive difference!!!Подробнее

Crazy Homelite Chainsaw Build! Looking For More Power! Stack Air Filter Mod! Huge Carb Swap!Подробнее

MS311 mod to expel exhaust more efficiently by using 20 mesh stands per inchПодробнее

MS170 muffler exhaust mod to expel exhaust more effectivelyПодробнее

more 8.8hp action on the ported sthil ms400cПодробнее

two mods you can do to increase power without porting! this really works!Подробнее

More power? Or Just Noise?Подробнее

More power after BREAK-IN?? Stihl Ms400! Foam filter test!!Подробнее

Cool Mods for a Stihl MS462Подробнее

Echo CS 400 before and after muffler modПодробнее

look at the muffler mod on ported 680Подробнее

The Worlds Most Powerful Chainsaw Stihl MS 881- Our Biggest Sponsor YetПодробнее

290 Farm Boss Mod ! - Do this after your warranty runs out.Подробнее

stihl ms194t in-house modifications. 15 minutes for more power!Подробнее

Stock Muffler vs Muffler Mod - More Power From My Chainsaw! 2 of 2 - #5Подробнее

Easy power upgrade - Stihl MS 250 muffler modПодробнее

CinKo Echo CS400 Exhaust ModПодробнее

Stihl Ms 271 Gets Port Work And A Muffler ModПодробнее