Thread: worth every penny! dynomax VT $90!

- Hmmmm, what are the dimensions of the resonators you guys are running? I have a big one and it s*cks. I would like to go to a smaller size and add this muffler.

correct, 3" for me...

OK I am confused. Whats te difference in a 17156 and a 17956
Compare - SummitRacing.com

the spring on the flap, 156 is lighter 4.0L and smaller, 956 is a stouter spring for 4.0L and larger motors, you want the 156...

Awesome,thanks for clearing that up

wow, that is really quiet. about the same as the hks i had on my b15, or posisbly about the same as an apexi ws2.

Watch the internal spring for breaking or failing some other way. That would piss me off if that happened. I have heard stories of it. Just letting all those know who are interested.

I think this is a great muffler, it makes it very quiet. I only wish it lasts a good bit of years.

^This muffler is stupid loud on a N/A car without a big resonator.



^So when does the spring open and close? Depending on how much exhaust flow is traveling and the speed of the flow?

the spring issues is mostly only an issue with the "small engine" muffler. the spring is to light and causes the valve to rattle around. the "large engine" muffler is made for more exhaust flow and has a stiffer spring.

i have the "large engine" muffler. if anyone wants it let me know. i never used it and forgot to return it to summit on time lol. i have the muffler and a 3inch stainless U-bend ill sell for $110 shipped.



oh..............and all of you saying "wow this is cool! never heard of it!" can suck it
http://www.sr20-forum.com/general-sr20/33950-all-you-jokers-wanting-silent-exhaust-ftw.html

- So what would the bad be in getting the larger engine muffler? Would it rob top end power because of the spring being more stiff? I have a Apexi WS2 and I'm ready to sale it and get this.