Flyinrazrback

Quick question, I have long tube headers, no cats, x-pipe and flowmaster exhaust. With this kind of setup, is the exhaust smell more prominent than the factory exhaust? I doubt I have an exhaust leak, but the cabin smells like exhaust and smells like it coming out of the air conditioner vents when the a/c is set to circulate the inside air. Any ideas?

XEDES

Sounds like a possible leak from the headers.

Flyinrazrback

I will have to check it out, it smells like raw exhaust and I can smell it from beside the car too. When I bought the car it already had them on there, just hope that if it is a header leak I don't continue to have these problems.

dcarlinf1

It might be a leak, but since the cats are gone you can expect a gasoline odor as well. So, maybe it's ok, maybe it's not. Maybe have an exhaust shop put it on the lift and determine if there is a leak if you can't find one??

Flyinrazrback

Took it to an exhaust shop, they said no leak. He thought it might be running rich, so maybe the tune might need adjustment.

Slowbra302

I have 3 inch straight pipes from the headers back. The suff just stinks sometimes. I refuse to ride with my windows up and when I run it from one light to another and stop, it pours in the car lol. Every night when I get home I get a commen or two from the wife about "I smell like my car" lol. Wind and traffic dictate how much and quickly it makes its way in my windows. I have no leak and I am welded not clamped. Price you pay for sound and performance I guess.

cardude99

I used to have a diff stand with open downpipe exhaust, smell never entered the car so I can not comment on that, but outside it smelled like gasoline big time. I loved it, I think the smell of burring gas is awesome but that is just me. I must say the fact it travels inside your car is odd through, I def never had that problem.

Slowbra302

Yea usually downwind and traffic. Very rarely does it come in the vents as I don't use them!

Flyinrazrback

Ok, a follow up. I still have the exhaust smell, and after I drive the car for even 5 minutes I smell like I stood behind the tail pipe for 5 minutes and have to change my clothes. There is no exhaust leak. If I put the cats back on the car will this alleviate all the smell? If so, what do I need to buy in addition to the cats to put them back in? Any advantage with going with a high flow cat over the stock cats? I don't want to buy a high flow cat if it is going to put me back in the same boat I am at now. I love my car, but hate to drive it now due to the smell.

drewsky

Kinda like driving an old muscle car, straight exhaust smells like gas/exhaust. It's def due to the cats missing. Granted it's a brand new car.. it just kinda lingers under the cabin and sneaks it's way up to smell the car up.