Y-pipe debauchery

[14SWTahoe]

The exhaust shop I took my truck to thinks this is an acceptable Y merge:

SMH

It a damn T, needless to say it sounds like crap when accelerating from a stop and bogs down as the driver side exhaust has so much back pressure and can't scavenge the exhaust

 

[ezdaar]

Lol! How's that rear end feel, now that they bent ya over.

 

[14SWTahoe]

ha, I'm so pissed, I cant even sleep, WTF.

I'm going in tomorrow AM and having a talk with them.

 

[NathanJax]

I can't even see how someone would think that's OK...

 

[14SWTahoe]

I was absolutely floored when I got under there to look at it. I knew exactly why the truck was running like crap under anything but light load.

 

[14SWTahoe]

I talked to one guy first, he pointed the finger at the other guy. I talk to the other guy, he points the finger at the first.....

I expressed my displeasure and told them what was happening, told them what I would do if I were them, without stepping on toes.

Before I left they were already working on it and are doing it like it should have been done the first time. See how it is when I pick it up later.

 

[14SWTahoe]

They fixed it and it still does the bogging vibration/noise under hard acceleration.

I am still waiting for my updated tune from BBP but I dont know that it will fix it.

Low RPM heavy load (heavy acceleration) it sounds like hell on the driver side, like its being choked off still somehow.

Low rpm light load (low acceleration) does it as well just not as bad.

High rpm, high speed, (any acceleration) there is none.

What are some symptoms of scavenging problems?

 

[ezdaar]

why did you pay to have a Y pipe made? OO.. Speed eng dont have a 14 pipe yet? Trying to remember...

 

[14SWTahoe]

It didnt fit at all, it wasnt even close. No idea why, i cant imagine they changed much in 2014, the last year of nnbs.

Its 3" all the way back, even though the tube is bent on a crush bender, its still bigger than the stock setup.

---------- Post added at 07:31 PM ---------- Previous post was at 07:21 PM ----------

here is the new setup:

Two pipes over the cross member then merge into y behind it... doesnt get much easier than that.

The bends being crushed are still larger than 2.5"... cant imagine that is causing too much back pressure

Maybe there is leak somewhere and thats whats causing it? But again I would think it would be noticeable under any conditions, not just certain ones.

 

[ezdaar]

Wow. I would have bought a flow master merge and a universal pipe kit. Then welded it myself or taken it to a shop to have the parts cut and welded.

That's some boohoo shit bud.
That shop sucks ass.

 

[14SWTahoe]

Wow. I would have bought a flow master merge and a universal pipe kit. Then welded it myself or taken it to a shop to have the parts cut and welded.

That's some boohoo shit bud.
That shop sucks ass.

Yeah thats is what I am thinking, cut my losses here and do something similar. I found a local shop that does custom exhaust with pre mandrel bent pieces and then welds them together. There work is very good from the reviews and the pictures.

Muffler back is fine, I mean there isnt much to have to route back there, but from headers to the muffler is tough to do without mandrel bending. Need some tight radii.

 

[ezdaar]

Make a call to speed eng. I remember them saying something about a new y pipe

 

[14SWTahoe]

Im going with the local performance shop, which I should have went with first.

I think all the noise I am hearing is due to the crappy bends in the tube and its creating turbulence under heavy load.

I talked with the owner and told him my issues and he said he just had a new camaro come in with the same problem. Crappy y-pipe and was losing serious exhaust flow because of it.

 

[Clean07Burb]

Man, I can't believe they EVER let it leave their shop like that. Don't they have a supervisor that inspects the newbie's work before turning it back over to the customer?

 

[14SWTahoe]

Man, I can't believe they EVER let it leave their shop like that. Don't they have a supervisor that inspects the newbie's work before turning it back over to the customer?

I am usually much better about doing research about places before I pull the trigger on services. I was in a rush and had a hectic schedule and didnt do my due diligence.

Dropping off the truck monday morning. Also adding a resonator as its too loud with just the magnaflow muffler.

Shop owner said he will be taking before an after pictures, so I will update this thread sometime late next week.

 

[Sparky_69]

The exhaust shop I took my truck to thinks this is an acceptable Y merge:

SMH

It a damn T, needless to say it sounds like crap when accelerating from a stop and bogs down as the driver side exhaust has so much back pressure and can't scavenge the exhaust

HAHAHAHA!!

 

[Clean07Burb]

I am usually much better about doing research about places before I pull the trigger on services. I was in a rush and had a hectic schedule and didnt do my due diligence.

Dropping off the truck monday morning. Also adding a resonator as its too loud with just the magnaflow muffler.

Shop owner said he will be taking before an after pictures, so I will update this thread sometime late next week.

Better luck this time around!

 

[TheAutumnWind]

I am usually much better about doing research about places before I pull the trigger on services. I was in a rush and had a hectic schedule and didnt do my due diligence.

Dropping off the truck monday morning. Also adding a resonator as its too loud with just the magnaflow muffler.

Shop owner said he will be taking before an after pictures, so I will update this thread sometime late next week.

Looking forward to the after pics.

 

[Badmunky]

Update?

 

[ccapehartusarmyINF.(ret)]

i know almost nothing about welding and to me it looks like stevie wonder welded that

---------- Post added at 08:49 AM ---------- Previous post was at 08:46 AM ----------

haha my dad who works for a welding company came in the room to ask me a question as i was looking at the picture of there botch job he took one look and said WHAT THE F*** is that