Silenciador Helicóptero de alta qualidade para OS / YS .50 / .55 fulgor de motores de helicópteros

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Certified Buyer Rated

Jan 16, 2016

Fits perfect, can use as a mirror !! Finish is that good. OS 55 Ordered on Wed received Fri.

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Customer Rated

May 08, 2015

Muffler is nice looking. Seems to have some tuned effect (engine seems to prefer a certain RPM).
The exhaust deflector with the cap is a nice gimmick, it works but you Always get your hands dirty, both opening and shutting it.

I noticed very bad leakage between engine and exhaust, that a new gasket did not fix.
Found the surface of the header to be VERY roughly machined, with burrs and scratches.
When I flattened and trued it, the leakage was gone.

Sound: not super quiet, but absolutely acceptable.

Maybe not the best out there, but for its price absolutely good!

PLEASE IGNORE THE CROWNS: I would give it 4 overall, vaule 4, and quality 3 at best (you should not need to true machined surfaces....)

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Customer Rated

Oct 13, 2013

Se monte sur mon os55 hz, il faut agrandir la bride d'entre pour aligner la lumire d'chappement.
Mon problme est que j'ai du meuler la face infrieure du chassis (t-rex 600 dfc) puisqu'au serrage, le dessous du pot est en contact et gnre des vibrations.

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Certified Buyer Rated

Oct 03, 2013

Looks good. Have not use it yet as I am still waiting for an engine. Will post review later.

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Customer Rated

May 25, 2013

Purchased this muffler for a Trex 600 with OS55. Within three minutes of flying I landed to check the muffler bolt tension and noticed it was rattling. An internal weld had let go and a piece of metal was rattling around inside. Might be just a dud one I got but I wont be getting another. Absolutely no complaints with hobby king, they credited a refund to me within two days of my claim! Video link of muffler here http://www.youtube.com/watch?v=TCCgK3-eJYE

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Certified Buyer Rated

Mar 13, 2013

BRAND RJX for 55 size.very good,inlet and outlet holes are big.perfect finishing,will test soon on my allign 55 hyper

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Customer Rated

Sep 09, 2012

Good pipe, doesn't cut back on performance and resembles an O.S powerboost pipe, comes with everything pictured, fits my T.T redline 53 on a trex 600 frame no prob. top buy.