Does a non-restirctive resonator exist?

[GTRSOAR]

Hey everyone, I really want to AutoX but my car hits 94dB from 100 feet away and its too loud and they wont let me run again till its quieter I need to try to find a way to quiet it down with next to no restriction. I had a resonator in the car when I bought it and when I took it out it was WAY quicker so im worried ill loose that performance if I put one back in. Does a resonator exist that 3.5" or larger INNER diameter? Thanks in advance guys!

Exhaust specs: HKS Dump pipes to a Greddy Trust downpipe to a 3.5" Kakimoto straight exhaust to the cannon.

[cobrAA]

resonator can be straight but I guess you will have to buy like 2 resonators to make it quieter. I have one on my car and the difference is minimal.

[GTRSOAR]

Ya the resonator I took out was was straight as well. Its at the bottom of my for sale post:

http://forums.gtrcanada.com/parts-sale/46132-lots-gtr-gtst-parts-part-out.html

[Skym]

I would think the sudden change in diameter with that resonator slows down the exhaust gas.

One solution is a Coby resonator -

http://www.mapc.co.nz/exhaust.html

Or contact them directly and see if they can make it in the diameter you want -

http://www.finda.co.nz/business/listing/y6w2/coby-performance-exhausts/

Probably need more than one Coby or long enough Coby to drop sound level enough.

[caliber676]

If you want cheap, buy a glass pack. It may not lower it enough tho.

[Snake556]

Glasspacks are just clear right through. I don't think it'll make any difference for him

[GTRSOAR]

What's a glasspack? I've actually never heard of that term before

[Snake556]

Cherry Bomb glasspacks. They're straight through resonators. My buddy used to have them on his Crown Vic before it got smashed into.

Video of it. 0:48 he revs it up. They sound pretty decent

[GTRSOAR]

Do you know what the largest diameter Cherry Bombs come in? I worked at Canadian Tire many years and remember selling them and only ever seeing small sizes.

[Snake556]

If I'm not mistaken, the biggest they have is 4" inlet/outlet, so that's not too bad

[GTRSOAR]

Thats perfect for what i want. Ok ill check it out, thanks. Ill let ya know it goes

[GTRSOAR]

I wonder if it would quiet it down enough if its a 4" straight back Resonator, id expect so. I hit 94Db at 100 feet and I have to be under 92dB at 50 feet :S

[Skym]

Cherry Bomb glasspacks, Coby look like the same thing but different brand name???

[Terrh]

I didn't read the thread at all. But magnaflows are straight through, stainless steel, and cheap as hell. Get a 7" round or whatever else you think will fit and put one in. They're very quiet, and high quality. I don't buy any other kind of muffler anymore.

[GTRSOAR]

This would work, but im trying to keep the sound my Titanium Kakimoto cannon makes. This might be the only way to go though :P