Pass Laguna Seca sound limit in 3.2 seconds!
01-14-2015, 07:57 PM
#61
Drifting
I have the Sharkwerks Laguna pipes but am blowing nearly 104db at WOT with all three mufflers. Has anybody added something like Supertrapps to these? If so, wondering what the results were.
01-15-2015, 10:18 AM
#62
Burning Brakes
I was able to run 92db days at Laguna with OEM exhaust and locked out the flapper from opening to bypass the side-mufflers. It felt lethargic going up the hill, but no black flags!
01-16-2015, 02:28 PM
#64
Rennlist Member
I was (just) able to pass 92db with a Sharkwerks bypass and the 3sec mod, but only JUST... I think I was 96+ w/o.
01-17-2015, 05:45 PM
#65
Burning Brakes
01-17-2015, 06:12 PM
#66
Rennlist Member
01-18-2015, 12:25 AM
#67
Burning Brakes
forum search is your friend: https://rennlist.com/forums/showthread.php?t=553357
04-21-2016, 10:45 AM
#68
I have a 90 db day coming up next month and wondering if I'd be able to pass with this or maybe I need to add direction pipes also? I have OEM stock exhaust. Sounds like this will pass the 92 db limit, but not 90 db? I don't see the pipes listed on Sharkwerks, is there another source?
04-22-2016, 02:49 PM
#69
Racer
Depending on how overcast it is, wind direction, and where you put the car on track (far track left as you pass sound) you might be able to pass with this "bypass" option.
I passed in my old 997.2 GT3 RS with stock exhaust doing this...but I asked for a sound check a few times and it was really close to 90
If you can, having a set of directional pipes is preferred
I passed in my old 997.2 GT3 RS with stock exhaust doing this...but I asked for a sound check a few times and it was really close to 90
If you can, having a set of directional pipes is preferred
04-22-2016, 02:53 PM
#70
Rennlist Member
I have a 90 db day coming up next month and wondering if I'd be able to pass with this or maybe I need to add direction pipes also? I have OEM stock exhaust. Sounds like this will pass the 92 db limit, but not 90 db? I don't see the pipes listed on Sharkwerks, is there another source?
04-22-2016, 03:11 PM
#71
Rennlist Member
04-22-2016, 03:13 PM
#72
Rennlist Member
04-22-2016, 04:28 PM
#74
Rennlist Member
I think S/W may have stopped making those tailpipes ...
04-17-2018, 11:57 PM
#75
Rennlist Member
Two questions on this fantastic mod:
1. Is heat build-up a problem on track with the valves in quiet mode?
2. Has anyone tried this mod with a BBI Autosports center muffler on a 7.1 GT3? Read the posts on the mod working with the SW bypass, but I think the BBI bypass may be louder due to the slightly flared tail pipes.
Thanks
Matty
1. Is heat build-up a problem on track with the valves in quiet mode?
2. Has anyone tried this mod with a BBI Autosports center muffler on a 7.1 GT3? Read the posts on the mod working with the SW bypass, but I think the BBI bypass may be louder due to the slightly flared tail pipes.
Thanks
Matty