Replace Flowmaster muffler?
Replace Flowmaster muffler? Hey guys,
Running TSP 1 7/8" long tubes to their off-road y-pipe. Flowmaster catback with a 3" QTP cutout welded into the intermediate pipe. I'm ready to replace the Flowmaster muffler however I'd like to avoid buying a brand new catback + cutout etc.
I've been interested in the Hooker and Magnaflow mufflers. Anyone simply swapped one of them in place of the Flowmaster muffler? Looks like the sizing is a bit different and the connections (the Hooker has a 3-bolt flange on the inlet) are different too. Anyone have an idea of how to make it work in a manner cheaper than simply buying the whole new catback?
Running TSP 1 7/8" long tubes to their off-road y-pipe. Flowmaster catback with a 3" QTP cutout welded into the intermediate pipe. I'm ready to replace the Flowmaster muffler however I'd like to avoid buying a brand new catback + cutout etc.
I've been interested in the Hooker and Magnaflow mufflers. Anyone simply swapped one of them in place of the Flowmaster muffler? Looks like the sizing is a bit different and the connections (the Hooker has a 3-bolt flange on the inlet) are different too. Anyone have an idea of how to make it work in a manner cheaper than simply buying the whole new catback?
IMO, your best option is a Dynomax Ultra Flo #17536, it has 3" outlets like the FM muffler and is very close in size to the FM80 used in the cat-back. It won't take much to make it work you'll just have to re-adjust the muffler and tail pipes. Sound is similar to the magnaflow, and flows just as good.
BTW, Magnaflow doesn't offer dual 3" exits, only 2.5" exits.
BTW, Magnaflow doesn't offer dual 3" exits, only 2.5" exits.
Last edited by 99Bluz28; Jun 18, 2012 at 03:58 AM.
Thanks for the info 99Bluz28. Got your PM....this is definitely an option.
Ideally I'd prefer to go with the Hooker aerochamber however I'm not sure how to work around the 3-bolt flange issue. I guess a good muffler shop could cut the flange off, use a coupler to connect the intermediate pipe to the muffler and then weld it all together....just curious to see if anyone has gone this route.
Ideally I'd prefer to go with the Hooker aerochamber however I'm not sure how to work around the 3-bolt flange issue. I guess a good muffler shop could cut the flange off, use a coupler to connect the intermediate pipe to the muffler and then weld it all together....just curious to see if anyone has gone this route.
Last edited by Midnight02; Jun 18, 2012 at 10:15 AM.
Swapping in a $100-$200 muffler would be the preferred fix. Right now I see that the Dynomax muffler is an option and would be an improvement, just waiting to see if anyone has pulled this off with the Hooker Aerochamber (really like the sound).
Trending Topics
At first I did just the muffler, Magnaflow part # 12267. Then after I bought my DMH cut out and new TSP SS ORY, I picked up the entire catback. But just swapping out the muffler made a noticeable difference in sound and power.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Is the current flowmaster the stock configuration as in single in dual out? If so just buy the $80 Hooker Aerochamber muffler & have the exhaust shop swap them out. It'll be easy for them & you'll love the sound.
Did you just cut the flange off and weld it together?
