gumbo48

Hi all, I just wanted to verify that I ordered the correct parts before taking the exhaust apart. I've got a leak on the passenger side flange, right after the catalytic converter. Do these look like the right ones? Thanks.

Sorry, forgot to mention it's for a 2003 GS430.

sakataj

iTrader: (182)

did you just install PPE headers by any chance?

btw im pretty sure those are the crush gaskets for the rear canisters.....where it mounts above the axles. when i installed my greddy i used those but i forgot which side of the exhuast got them

1sWt2GS

iTrader: (6)

doesnt look right, it should have a hole on both sides. and be more oval.

1sWt2GS

iTrader: (6)

something like this

gumbo48

I haven't installed headers, the exhaust is stock as far as I can tell. The part number for these gaskets is 90917-06078. According to the diagram, it's the exact same part number for the gaskets that are right before the mufflers.

gumbo48

Well it turns out that they were the correct gaskets after all. The old ones were trashed.



Once we got done installing the new gaskets, there was a gap between the flanges and we thought that it was going to continue leaking but it didn't. Is it normal for it to have such a large gap?





What are these two fat pipes called? Would removing those and installing straight pipes make the exhaust a little louder?

flowrider

iTrader: (9)

^^^^The "fat pipes" are called resonators. See definition here:

http://www.ehow.com/about_5765675_ex...esonator_.html

Yes, removing them and replacing with straight pipe will increase the noise, but it may also increase rasp and change the tone.

The gap is OK as long as there is no leak.

Lou

SC400slide

iTrader: (11)

That is what my exhaust flanges looked like...they sealed the exhaust well...

sakataj

iTrader: (182)

i have this large of a gap also.....one OEM gasket, one aftermarket (flat) gasket later and i still have a leak here.... i have been pulling the exhaust apart from dragging it im trying to decide now if i am gonna cut off and grind down the flanges to make them smooth to fit, remake this section of the exhaust, rework the flanges, weld shut the gap (mine actually is more prominent on the top)

sigh its really annoying

Debonair

If you search "Remove Resonator" in the 2GS forum you will find a LOT of threads on peoples experiences with the sound. Even some before and after videos like this: .