Resonator Delete when having a Flowmaster installed? Please help!

BlackHawkZ71 · January 5, 2017

No problem i am at work right now i will get a pic about 3hrs from now i did mine pretty simple so far its held

PayTul · January 5, 2017

Im sure it is one of the many threads on here, but mind showing me a picture of how you "Clamped the flapper open"?

Yes please! Have been looking for this myself.

JRL1164 · January 5, 2017

I agree 100%. I love the sound of a Chevy V8. I've had 5 (progressively louder) mufflers on this truck and I finally got the one that sounds GOOD. Flowmaster Series 10.

Stock muff = Prius

Magnaflow 18 = Impala

Magnaflow 14 = A little better

Flowmaster 44 = Quite a bit better

Flowmaster 10 = FINALLY

It will never be as loud as my Vette, but I like it LOUD.

(My wife calls me "The 60 year old teenager)... ... ...

How did you run your exhaust? Cause mine SI/SO 3" pipe all the way with no resonator and flapper is still pretty quiet. Very very minimal drone and would like a little more sound. I had my pipe ran just like the 6.0 on the 2500.

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BlackHawkZ71 · January 5, 2017

Yes please! Have been looking for this myself.

It holds quite well and the truck sees more then smooth roads. I found a bolt that fits a little tight i had laying around. the correct way to do it. http://sandyblogs.com/techlink/?p=3296

quise2024 · January 5, 2017

Does anyone know the size of OEM pipes. I want to have as little work possible for the shop to put in new muffler.

By this me 2.25, 2.5, or 3 .. its too cold here to lay down on an ice street and measure

PayTul · January 6, 2017

It holds quite well and the truck sees more then smooth roads. I found a bolt that fits a little tight i had laying around. the correct way to do it. http://sandyblogs.com/techlink/?p=3296

Thanks!!

BlackHawkZ71 · January 6, 2017

Does anyone know the size of OEM pipes. I want to have as little work possible for the shop to put in new muffler.

By this me 2.25, 2.5, or 3 .. its too cold here to lay down on an ice street and measure

Its been awhile but i am thinking 2.75" pipe the flowmaster on my truck is 3" i don't remember if they used an adapter pipe but i have the 5.3

Thanks!!

no problem

BlackHawkZ71 · January 6, 2017

Somehow quoted my own post..

Zackery Pylant · January 6, 2017

Got it done yesterday. Much much better I just wish it were a little louder.

The clamp of the flapper is what made the big difference. It makes it much louder.

quise2024 · January 6, 2017

Its been awhile but i am thinking 2.75" pipe the flowmaster on my truck is 3" i don't remember if they used an adapter pipe but i have the 5.3

no problem

Im probably getting flowmaster 40 series or super 40 series i have no idea whoch ones ive been listening to as some people just say 40 series.

Looking on their site i dont see anything 2.75 though so would i buy 2.5" and have them weld to make it fit or buy bigger at 3"?

Also are our truck center in center out?

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SirenRed16 · January 6, 2017

Im probably getting flowmaster 40 series or super 40 series i have no idea whoch ones ive been listening to as some people just say 40 series.

Looking on their site i dont see anything 2.75 though so would i buy 2.5" and have them weld to make it fit or buy bigger at 3"?

Also are our truck center in center out?

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I didn't buy a Flowmaster but I bought my Carven at 3". I was told in this forum that it's better to go bigger with the 3" then going to small with the 2.5". Hope that helps you.

Luster · January 8, 2017

How did you run your exhaust? Cause mine SI/SO 3" pipe all the way with no resonator and flapper is still pretty quiet. Very very minimal drone and would like a little more sound. I had my pipe ran just like the 6.0 on the 2500.

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No flapper, no Rez, Flowmaster 10, 3" over axle and discharge in stock location behind RR wheel. I also hollowed out the third cat. My friend has a lift. Disconnected the pipe, pulled it out of the way, then drilled about 50 holes in the Catalyst with a concrete bit. Banged on it with a hammer and chisel. (safety glasses) Big chunks fell out.

JRL1164 · January 9, 2017

No flapper, no Rez, Flowmaster 10, 3" over axle and discharge in stock location behind RR wheel. I also hollowed out the third cat. My friend has a lift. Disconnected the pipe, pulled it out of the way, then drilled about 50 holes in the Catalyst with a concrete bit. Banged on it with a hammer and chisel. (safety glasses) Big chunks fell out.

Thanks our set ups are the same minus the cat. Maybe that'll bring me some volume.

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qwank · January 9, 2017

Got it done yesterday. Much much better I just wish it were a little louder.

The clamp of the flapper is what made the big difference. It makes it much louder.

I would have just had the remove everything from the muffler back and bend up a new tail pipe.

GMC2015 · January 9, 2017

Got it done yesterday. Much much better I just wish it were a little louder.

The clamp of the flapper is what made the big difference. It makes it much louder.

Can post a video on how it sounds? Just curious because I'm looking for a good exhaust for my 2015 V6 Sierra.