99-LS1-SS

I was wondering. If it sets the knock sensor off what happens to the engine? What does it feel like when the y-pipe hits the floor?

Drew98TA

Feels freaking horrible... haven't had a chance to fix it. Its like someone is banging the floorboard underneath my feet with a hammmer!!!! rawr.

99-LS1-SS

Does it hit hard? Mine feels like a steady drum roll. Is that my engine vibrating or my y-pipe hitting?

JMBLOWNWS6

iTrader: (17)

Drum rool here lol

99-LS1-SS

Did you fix yours? If so how?

waterbug1999

iTrader: (3)

Mine is tapping on the passenger side heat shield.. Going to take it off, but am too lazy just for that. figure when i HAVE to get it off the ground ill do it..

DEPHUDSON

Mine Vibrates Under Passenger Side Seat Only When Turning Left> Any Suggestions? Car Has Slp Lts With Cats And Y.

waterbug1999

iTrader: (3)

Alls i can say is to eliminate the obvious... Passenger side would be the heat shield. if you do that, will it not hurt anything but inhance the cars performance by getting rid of .05 onces. LOL. But if the rattling quites well then there ya go. Its not gonna hurt a thing so let me know if that is what it was...

finalymodded

I went to the muffler shop and had the weld the entire exhaust together after prying down on it. worked like a charm!

waterbug1999

iTrader: (3)

So, it work like a charm???

NiceTry

iTrader: (1)

if you don't want to weld for even if it hits after being welded, get a big hose clamp or something similar and put a piece of heater hose around it then clamp it around the y-pipe between it and were it hits the floor board.

DrkPhx

iTrader: (15)

That worked for me.

2002SilverWS-6

iTrader: (4)

Mine hits. Helps me from falling to sleep when I'm banging gears.

willis 00

mine hits,i cant stand it.i have slp lt,cats and y. iam gonna toss the heat shield and hope that works.

99-LS1-SS

Doesn't it set your knock sensor off?

JMBLOWNWS6

iTrader: (17)

Get some stiff motor mounts and tranny mount so the flex goes away! Thats what I am going to do

pewter99SS

mine bangs but doesn't set the knock sensor off. I would think if your knock sensor is going off that your headers themselves are banging the K-member. Your Y pipe shouldn't hit hard enough to set of the knock sensors. Well I hope not.

2002SilverWS-6

iTrader: (4)

I've never got knock in my car. Maybe I'm lucky.

99-LS1-SS

I notched my k-member but, maybe it wasn't enough.

pewter99SS

how much clearance do you have? I did mine to about a 1/4 of an inch just to be safe