Installed new magnaflow high flow cat!!!! LOVEIT!!!!!

02ramboi · Jun 3, 2017

From initial start up I noticed it made my flowmaster rumble so much more.my throttle is more responsive and it just sounds so much better.if anyone is ever thinking about doing it go right ahead you will love the aftermath. Now time to drive around and waste some gas haha!!

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xtremewlr · Jun 3, 2017

Now replace the Flowmaster with a Magnaflow muffler to get more improvements. Flowmasters sound good but flow like crap.

02ramboi · Jun 3, 2017

xtremewlr said:
Now replace the Flowmaster with a Magnaflow muffler to get more improvements. Flowmasters sound good but flow like crap.

There was a guy there with a fully built mustang that came to change out his flowmaster because he was told the same thing. That's crazy

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panoz3 · Jun 8, 2017

Is it a direct bolt on or universal?

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02ramboi · Jun 8, 2017

panoz3 said:
Is it a direct bolt on or universal?

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Had to be welded

4.7 v8
Hi flow cat/flowmaster exhaust
7 inch lift/5 inch lift
20 inch falken wildpeak at3/33's

panoz3 · Jun 8, 2017

I was curious what you had installed. I found this kit from Magna flow for the 4.7, part # 52291. Should work very well with the new Gibson headers I installed.

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02ramboi · Jun 8, 2017

Oh yeah those look very very nice but my model only had one cat so I decided to just have them weld it my piping is in very good condition so I didn't need to change it my next thing is headers and exhaust is complete for me but those hi flow cats makes a big difference but since you have headers even better

4.7 v8
Hi flow cat/flowmaster exhaust
7 inch lift/5 inch lift
20 inch falken wildpeak at3/33's

panoz3 · Jun 8, 2017

So this is the stock set up for my 06 4.7:

The LH tube is flattened as it crosses under the trans and both pipes are compressed into the exit pipe. If you gained a noticeable improvement with a single cat, I have to believe the Magnaflow kit will do the same or more for my truck. After looking more closely at this factory exhaust, it's no wonder these engines feel underpowered!

02ramboi · Jun 8, 2017

panoz3 said:
So this is the stock set up for my 06 4.7:

View attachment 88623

The LH tube is flattened as it crosses under the trans and both pipes are compressed into the exit pipe. If you gained a noticeable improvement with a single cat, I have to believe the Magnaflow kit will do the same or more for my truck. After looking more closely at this factory exhaust, it's no wonder these engines feel underpowered!

Oh yeah that is correct looked how crushed it is imagine what the difference is going to be it will be well worth it

4.7 v8
Hi flow cat/flowmaster exhaust
7 inch lift/5 inch lift
20 inch falken wildpeak at3/33's

Ian_Olivas · Sep 26, 2017

02ramboi said:
Oh yeah that is correct looked how crushed it is imagine what the difference is going to be it will be well worth it

4.7 v8
Hi flow cat/flowmaster exhaust
7 inch lift/5 inch lift
20 inch falken wildpeak at3/33's

I just found this thread and man let me tell you, you feel a huge difference with the Gibson headers but do yourself a favor and cut the cats off, it won't even throw a code so forget about the tuner unless you get custom long tubes for the 4.7. I'm curious what yours sounds like, I never got to hear the different sounds in steps of doing one after the next. I put the headers on then threw 2.5" piping and cut the cats off and have an x pipe going duals out the back with the flowmasters sounds great and I have alot of lancers that rev their engines at me lol

02ramboi · Sep 26, 2017

Ian_Olivas said:
I just found this thread and man let me tell you, you feel a huge difference with the Gibson headers but do yourself a favor and cut the cats off, it won't even throw a code so forget about the tuner unless you get custom long tubes for the 4.7. I'm curious what yours sounds like, I never got to hear the different sounds in steps of doing one after the next. I put the headers on then threw 2.5" piping and cut the cats off and have an x pipe going duals out the back with the flowmasters sounds great and I have alot of lancers that rev their engines at me lol

Haha nice that's my next upgrade to get some headers I got the programmer already I like it makes a difference.headers I know will finish everything off

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ramportin1 · Sep 27, 2017

02ramboi said:
Haha nice that's my next upgrade to get some headers I got the programmer already I like it makes a difference.headers I know will finish everything off

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This has me thinking i need high flow cats lol, i still cant get myself to invest 1700 bucks on a good header set up, but anything to gain a few DB for not to much money im game!

Ian_Olivas · Sep 27, 2017

ramportin1 said:
This has me thinking i need high flow cats lol, i still cant get myself to invest 1700 bucks on a good header set up, but anything to gain a few DB for not to much money im game!

If it doesn't wake the neighbors it's not loud enough lol

02ramboi · Sep 29, 2017

Ian_Olivas said:
If it doesn't wake the neighbors it's not loud enough lol

Lmao that's for sure and I really did feel a difference when I changed out the cats acceleration was a bit better

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Installed new magnaflow high flow cat!!!! LOVEIT!!!!!

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