Originally Posted by IntegraR0064

Anyone have a litespec, hopefully with sound measurements? It sounds like a great exhaust but I'm worried about sound levels. Locally we're supposed to be under 93 dB although they don't seem to enforce it unless it's really ridiculous. I could run a silencer locally. I'm hoping without silencer it's below 100 dB and with silencer it's around 93 dB...

Originally Posted by Silver9k

Ok, I installed my JIC Stainless Cat-back yesterday and decided I'd weigh everything including stock pieces. I haven't seen a thread here with multiple different exhaust weights. Perhaps others who have weighed their exhausts can post in here as well, I'll make a list and perhaps we can sticky this in one of the forums.

Cat Back
Stock.........................................50lb s

Amuse Dual Titan w/Res...............13.7lbs
Amuse Dual R1............................15lbs
Amuse R1000 (header back)..........9lbs
Apexi N1.....................................20.8lbs
ASM SS 70mm..............................21lbs
Borla...........................................49 lbs
Fujitsubo Legalis R.......................42.5lbs
Invidia Dual 60mm........................27lbs
JIC SS........................................16lbs
J's 70mm Ti (header back)............10lbs
J's 60RS......................................9.5lbs
Mugen.........................................24.5 lbs
Spoon N1.....................................19lbs
Spugen Single Ti............................17.5lbs
Supersprint...................................37lb s
T1R 63mm....................................25lbs
T1R 60RT......................................8lbs
T1R 70mmV1..................................22lbs
T1R 70RT........................................9lbs
T1R Sparrow..................................30lbs
T1R 70R Sparrow...........................35lbs
Toda Dual.....................................24.5lbs
Top Secret Full Ti............................5lbs
Veilside Teardrop...........................5.3lbs

Header
Stock..........................................25l bs (with heatshields)

Amuse...................................10lbs
Fujitsubo................................15lbs
J's Racing without wrap...........10lbs
OBX.......................................11.2lbs
Ricks 6-Plus.............................12.3lbs
Toda........................................12lbs

Catalytic Converter / Testpipe
Stock Cat................................12lbs

Custom Steel Testpipe.............4lbs
T1R 70mm Testpipe..................4lbs


Flywheels
Stock.....................................14.2lbs

Comptech...............................9lbs
Competition............................8.8lbs

Originally Posted by IntegraR0064

Nice, thanks! In case anyone else is interested I just checked the sound results for Mark Melchior's car, they were 95.4,94.8,97.4 (Nick) and 96.8,95.1,95.7 (Mark)

So it's getting close but should be fine for national events, and definitely with the silencer in should be fine I would think. Now I wonder how much the silencer does...

Originally Posted by marcrx5

I ran without the silencer for nationals. I actually drove to nationals without a silencer, and I don't really recommend that. Locally I used to run with the silencer in, and depending on the weather and location of the sound meter I was in the 90-92 range. Probably a little tight if you have a 93 dB limit. I would fab a turndown in case it was cold, or the meter was a little close to the course. With the silencer out, I usually around where the readings from natinoals. Although, the last summer series event we had was a very cool day, 40ish when I ran, and I hit 100.7 dB. I think it was when I hit the rev limiter, it was a crazy fast course and the previous runs were around 97 dB when I didn't hit the limiter, so it was an abnormality. Either way, it would again be a good idea to have a turndown just in case.

Originally Posted by IntegraR0064

Super helpful, thanks . Do you feel a power difference with the silencer in/out? I can't imagine it'll make much of a difference since the exhaust is pretty over sized. Also I'm assuming you have some sort of intake, header, and high flow cat?

Originally Posted by josh7owens

Does anyone know where I can get a silencer for my T1R 70r? The tip is 100-104mm wide. It's odd its not perfectly round, I just realized that when I measured it.

Edit- Call AJ-Racing and they had one in stock. $55.00 plus shipping. Dave Roberts will be very happy to hear I ordered a silencer. HaHa