Subject	Synapse Engineering No Drone Resonators Installed
Posted by	Drk93TT on August 04, 2015 at 9:04 PM
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Message	So my last journey to pittsburgh a few weeks ago to the PVGP car show was the straw that broke the camels back. My exhaust drone has been driving me absolutely insane on the highway. ( cruising speeds 70mph @ about 2900rpm ) also 4th gear at 45mph made my head want to explode. but that was remedied by downshifting to 3rd. So I purchased 2x of the 18" stainless "no drone" branch resonators (helmholtz resonators) from Synapse Engineering. They are egg shaped to be welded to a 3" exhaust pipe and the other end is just a closed welded shut end. Now the installation instructions say to install them as FAR FORWARD AS POSSIBLE to maximize the effectivity. Wellll.. I did a lot of trial fitments and couldn't get the things any farther up than where I put them. (just before the mufflers) I was hoping to strap them to the test pipes.. No luck. not enough clearance on the RH side in my case. It would have rattled on the body/scraped bad over low bumps. I removed the muffler sections and drilled the holes with 2 new hole saws made for cutting stainless steel (or so they claimed they were both useless after this endeavor with 304SS) A bit of cutting oil went a long way on the second hole that was drilled and went a LOT quicker than the first.... I didn't have them weld the back of the resonator pipes to the mufflers... just incase I ever want to get rid of these I can just have the holes welded shut on the pipes.. and cut out the resonators and sell them or something. I will be removing the gaskets from the front and replacing them with new gaskets and re-aligning the exhaust tips on a hoist soon. Just wanted to put it together quickly and take for a drive this evening. Overall Im pretty happy with the results. Might bend up the passenger side resonator a bit with a torch to make it a little more even as they are a bit uneven.. if anyone even notices they are there that is. I don't feel any performance decrease on acceleration... but do notice its a bit quieter on decal and idling for sure a bit more tame / deeper exhaust note. Figured Id share !
Follow Ups	Synapse Engineering No Drone Resonators Installed - Drk93TT 21:04:01 08/04/15 Awesome!! Please post quality video or audio. (n/m) - OverZealous (CT) 21:13:11 08/04/15 Thanks. Video is on my to do list for sure (n/m) - Drk93TT 21:15:15 08/04/15 Nice! I've always wondered if the the Helmholtz resonators - PiotrC70 21:16:08 08/04/15 I've talked to the owner about them - BlackholeZ 21:36:39 08/04/15 was actually thinking that after install - Drk93TT 06:03:10 08/05/15 Painted them last night - Drk93TT 07:20:46 08/06/15 Re: Synapse Engineering No Drone Resonators Installed - WazTTed 02:25:09 08/05/15 definitely noticeable - Drk93TT 06:05:25 08/05/15 Very interesting. - Boosted1 05:48:01 08/05/15 Parts and labor - Drk93TT 06:08:07 08/05/15 Hmmmm. Might need to try this. (n/m) - J-Mart 10:58:23 08/05/15 My No Drone Resonators setup - JUNz (?00)rwhp 17:44:35 08/05/15 That's where I was thinking they should go... - Ted (92TT) 22:12:13 08/05/15 Awesome! - Drk93TT 07:19:42 08/06/15 That's backwards - Mongoose 07:28:39 08/06/15 Can I borrow that for a weekend to test out? :) (n/m) - Woody75 (Denver) 13:59:31 08/06/15 Could you take a pic from under the car with it installed. - Woody75 (Denver) 14:20:12 08/06/15 Re: Could you take a pic from under the car with it installed. - JUNz (?00)rwhp 18:06:51 08/06/15 Thanks. Can I get something more from the floor up? (n/m) - Woody75 (Denver) 21:44:43 08/06/15 After VHT flat black - Drk93TT 08:48:56 08/06/15 Nice! Personally I like that a lot better (n/m) - SammybTT(TN) 21:37:57 08/07/15
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