flowmaster merge question
flowmaster merge question im about to order one from summit i dont really know what size to get i have a 3" pacesetter y and a 3" catback also will i need any other couplers or anything to make it fit or can i simply cut it out and weld it in???
thanks
thanks
This is what it looks like:
And a quick google search...
http://cgi.ebay.com/ebaymotors/Flowm...01810006r18836
You will need the 3" going into a 3.5".
And a quick google search...
http://cgi.ebay.com/ebaymotors/Flowm...01810006r18836
You will need the 3" going into a 3.5".
TECH Apprentice
Joined: Dec 2004
Posts: 347
Likes: 0
From: fort campbell
I used the 3" in y to 4" merge with a dynomax race magmun and piece of 4" pipe ro the axle. after that I used a 4" to 3" adapter to go back to the 3" catback I had in place. There is a huge thread here that PatG started about this.
Trending Topics
I have 3" y pipe along with 3" I pipe I ordered the 3x3.5 Flowmaster Merger worked with no coupler or anything just make sure you go to a good Exhaust Shop fitment is important not much room as Im sure you know!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Launching!
Joined: Apr 2006
Posts: 213
Likes: 0
From: Back to Newport News
I have a pacesetter ORY with the FM merge welded in. I ordred the 3" inlet/3.5" outlet FM merge. The exhaust shop was able to cut and chop and put in a reducer without me suppling anything but the merge itself. Any decent exhaust shop should be able to do this with no problem.
me and my dad are doing it he has his own shop he knows what hes doing but heres the pacesetter y it looks tight when i cut it off looks like ill need two 45 degree bends
11 Second Club
iTrader: (32)
Joined: Jan 2006
Posts: 3,701
Likes: 2
From: Southaven, MS (near Memphis, TN)
therobman, I also thought two 45* pieces would work...it did not..
Here is my post about using a Pacesetter Ypipe
https://ls1tech.com/forums/12018378-post4.html
Here is my post about using a Pacesetter Ypipe
https://ls1tech.com/forums/12018378-post4.html
11 Second Club
iTrader: (32)
Joined: Jan 2006
Posts: 3,701
Likes: 2
From: Southaven, MS (near Memphis, TN)
I wouldn't plan on it killing all the rasp unless you dump it like jetlag. Yes the merges that most Y pipes use don't do anything to help it I still feel like its the single 3" pipe going over the axle that rasps it up. My hooker exhaust is a little raspy still. You know, come to think of it, I seem to remember a member here talking about how his 4" mufflex with magnaflow muffler was raspy too. 
The merge will help a lot with the rasp. Dumping the exhaust helps to hide it too.
The merge will help a lot with the rasp. Dumping the exhaust helps to hide it too.
as long as the merge cuts down the rasp a little i just got it in the mail its a very nice piece now i see why people say the pacesetter merge is terrible hahaha ill post up results after i install it
