2018 Tahoe premier flowmaster 40 exhaust

iamdub

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Thanks for a great reply and suggestion. Last night I did some measuring under the Tahoe to look how I could get something like this to fit. I did nice that the flex tube that's after the 3rd cat is in bad shape- like falling apart. I just ordered a new one with the replacement front mount clamp. I could of just cut the old one-off and welded both ends on but thought it would be best to unbolt the front and replace it without cutting the mounting tube. Could the defective flex tube piece cause this problem?

The flex pipe would just sound like an exhaust leak if it were bad. It wouldn't "leak" out a particular droning frequency. If it wasn't a problem before the AP muffler, it's not the problem now. Also, I can guarantee that you have PLENTY of space to fit a J-pipe. I'll toss up a pic of my exhaust setup as proof:

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The rest of my exhaust shizz, if you're interested: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1485205
 

Ghost10

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The flex pipe would just sound like an exhaust leak if it were bad. It wouldn't "leak" out a particular droning frequency. If it wasn't a problem before the AP muffler, it's not the problem now. Also, I can guarantee that you have PLENTY of space to fit a J-pipe. I'll toss up a pic of my exhaust setup as proof:

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The rest of my exhaust shizz, if you're interested: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1485205
Went to ghetto route
Found a old corded Milwaukee sawza in the hood on the side of the road.
Went to home Depot and got a new blade and extension cord.

Cut off the rear drone can as close to is as possible.
Oh boy the exhaust sounds like a roaring monster when you get on it.
I know once I go to a shop and have some pipe added and a this new dual tip I got.

it going to sound good.
 

Ghost10

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This is with the x1250 or whatever muffler and res inline
Flapper deleted fyi
 

Ghost10

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You know you're gonna have to provide proof, right?
Here’s a after shot
Res gone
Not the greatest but make sure to listen with headphones

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I really hope that when I add the extra 5” pipe and the dual 4” black tip makes it sound better
Because the exhaust is right in the pocket under the truck it doesn’t sound that great when you floor it
 

Ghost10

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Too loud or resonance under the body or...?
Well my guess is because the exhaust has been cut right at the hanger there’s a big an open spot right there and exhaust sounds like a big whoosh so I guess it’s just because of that pocket

I’m gonna try to go to the muffler shop this next week
 

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iamdub

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Well my guess is because the exhaust has been cut right at the hanger there’s a big an open spot right there and exhaust sounds like a big whoosh so I guess it’s just because of that pocket

I’m gonna try to go to the muffler shop this next week

Oh! Yeah, that's definitely resonating under the cab.
 

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