Each time I use my heat or A/C...I can smell the exhaust :squint:
I know there is one gasket I need to replace which is probably causing this (the gasket by the header and the block). But there must be another one that I can't find...
When it's raining out or there's any significant amount of water/puddles, somehow water gets INTO my exhaust pipe and makes this scratchy noise as it runs through the length of the pipe I can't find another leak and I don't know where else to look.
Any suggestions? :thinking:

 

Might need a new flex pipe....take it into a muffler shop..they'll put it on a lift and check the exhaust for holes/cracks etc..

 

I just put it on less than a year ago....Greddy SP2 and when I checked it about a month ago I didnt see any holes or anything...

 

You put on a new Cat Back system or a Full Header to Muffler system?...something is getting thru in the front...and you personally put it on a lift and checked for leaks/cracks in the exhaust system? My best advice would be for you to take it to a muffler place and have them change the Manifold Gasket and check for those leaks.

 

Header and catback....no new hfc or anything but obviously I was right there looking at all of it and saw nothing. The rain noises started about 3 months ago so I'd had the exhaust on for a while already. And yes, it was up on a lift when I looked at it.
I guess I could take it to a shop, I just don't wanna pay to have them look at it...
Any other advice?

 

Where im from they look at it before they do the work...so you could be like take a look and what do you think...while its up there check out whats wrong with it..and tell them they charge too much and leave...lol

EDIT: So technically you still have stock piping from the down pipe to the cat...thats prolly where your problem is at..is it bolt on or did you weld it

 

Well obviously they look before they work on it but sometimes they say they charge for "diagnosing" ....STUPID! But I guess I could just say "oops, don't have my $$ - sorry!" haha

It's a bolt on and yes, I'm thinking thats where the problem is but I can't find anything and I've tightened the bolts and even replaced one!

 

Well then take it somewhere else if they charge for diagnosing

 

Is there a circular gasket where the header meets the stock piping to the cat?

 

not that i know of ^... i believe it's just hondas little spring bolts and 2 flanges....

to the OP, what header are you running... u might have a mean exhaust leak at the collector