track days with an LS7

[biggest1955]

Hi Guys

just wondering if anyone has got any noise level readings with the standard exhausts versus the Ultima mod ?? i am not wanting to chop the original system just for a track day so are there any other ways of getting under the bar? any suggestions would be greatly appreciated

cheers

[Gulf LS3]

getting under 100db with 3" secondaries i would say is very difficult with the limited space available.

back pressure becomes a major problem if the system is too restrictive, heat build up is also a problem....