What size turndown?
Thread Starter
Joined: Mar 2007
Posts: 878
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From: Lincoln, Nebraska
What size turndown? I've decided that when i get my headers on my car i'm just going to run a bullet style muffler (really leaning towards the Magnaflow 14419, or Moroso Spiralflow, help me decide) out of the Y pipe and dump it. Probably going with the BBK LT's and i believe their Y pipe is 2.5". I want everything to be a slip on fit, using only clamps and not welding.
I'm probably over thinking this, but what size muffler and turndown would i need with that Y pipe for it to be a slipfit? I'm just worried i'll buy the wrong size and then have to send it back and wait for another to ship back to me.
I'm probably over thinking this, but what size muffler and turndown would i need with that Y pipe for it to be a slipfit? I'm just worried i'll buy the wrong size and then have to send it back and wait for another to ship back to me.
A 3" y-pipe like TSP or Speed Engineering will actually have a 2.75" outlet which is made to slide into the stock-size 2.75". To be honest, I'm guessing the BBK Y-pipe is going to be the same.
TECH Fanatic
Joined: Jul 2011
Posts: 1,074
Likes: 2
Where did cutout come from in this conversation? lol If you're looking to run a bullet with a turndown after the Y, a cutout won't be necessary.
As for size, you'd need to cut the slip-in portion of the y-pipe to get rid of the 2.75" so that you can be sure to slide it into the 3" inlet of the bullet. You'll need to get a reducer (Walker/Dynomax makes them) if you want to run that setup.
As for size, you'd need to cut the slip-in portion of the y-pipe to get rid of the 2.75" so that you can be sure to slide it into the 3" inlet of the bullet. You'll need to get a reducer (Walker/Dynomax makes them) if you want to run that setup.
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Thread Starter
Joined: Mar 2007
Posts: 878
Likes: 0
From: Lincoln, Nebraska
Where did cutout come from in this conversation? lol If you're looking to run a bullet with a turndown after the Y, a cutout won't be necessary.
As for size, you'd need to cut the slip-in portion of the y-pipe to get rid of the 2.75" so that you can be sure to slide it into the 3" inlet of the bullet. You'll need to get a reducer (Walker/Dynomax makes them) if you want to run that setup.
As for size, you'd need to cut the slip-in portion of the y-pipe to get rid of the 2.75" so that you can be sure to slide it into the 3" inlet of the bullet. You'll need to get a reducer (Walker/Dynomax makes them) if you want to run that setup.
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