[kropscamaro16]

Originally Posted by Baddawg53

There's a 105db day this Sunday!! It'll be my first time there and no worries about sound.

I have a non NPP muffler I plan on putting Laguna pipes into for the next time I go, I'm sure that'll keep me below 90.

haha i doubt my car would pass at 105

[Baddawg53]

Originally Posted by kropscamaro16

haha i doubt my car would pass at 105

I got tagged at 106 at thunderhill with the NPP valves open, closed I pass the 103 though.

[kropscamaro16]

yea i have longtubes and full exhaust and race in track mode id be interested in what i would run lol

[SS_1LE]

Corsa NPP with longtubes did 112db at thunder hill on warmup lap at thunder hill. I need to either make some laguna pipes or change exhaust.

[MTSS1LE]

Originally Posted by Rayvan

Thanks for the idea! My son and I both exactly duplicated your Laguna pipe solution, and while it helped, at the Laguna Seca, Mar 15 track day, we still got booted *if* we stayed wide open between turns 5 and 6. We both drive 1SS1LE cars. My other son with his insanely loud '05 GTO, was able to run all day by backing out between those two turns (as we did except for the laps where we went balls out there). Best thing is to put the car in fourth and just cruise when passing the sound booth.

FWIW, the pipes stayed tight all day, and got VERY hot after a session, but we expected that. They also left no sign of any damage on the tail pipes when removed!

I haven't been on here in a while to give an update but glad to see it worked out for you! Was it cold or cloudy that day? I was able to pass sound WOT through turn 5 and 6 on a 90db day at laguna on 3/27 but iirc it was pretty clear that morning.

[Dabjbr]

Anymore success stories with DIY pipes at Laguna Seca during 92db days?