Magnaflow catback help

[07PPVTahoe]

I bought the magnaflow catback system number 16672. Can anyone help point me to the right bolts to replace if I have to, and does it have a gasket? Autozone or rockauto is just showing me exhaust manifold bolts and I'm having trouble looking while at work. I'd like to install after as it just arrived. System I got

MagnaFlow Street Series Cat-Back Performance Exhaust System 16672

The MagnaFlow Street Series Cat-Back Performance Exhaust System 16672 brings out the personality of your SUV with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Single...

www.magnaflow.com

 

[swathdiver]

I bought the magnaflow catback system number 16672. Can anyone help point me to the right bolts to replace if I have to, and does it have a gasket? Autozone or rockauto is just showing me exhaust manifold bolts and I'm having trouble looking while at work. I'd like to install after as it just arrived. System I got

MagnaFlow Street Series Cat-Back Performance Exhaust System 16672

The MagnaFlow Street Series Cat-Back Performance Exhaust System 16672 brings out the personality of your SUV with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Single...

www.magnaflow.com

It's got everything you need unless something is missing.

 

[07PPVTahoe]

It's got everything you need unless something is missing.

Oh? I called magnaflow and they said it didn't come with bolts or a gasket

 

[swathdiver]

Oh? I called magnaflow and they said it didn't come with bolts or a gasket

That's odd as their own website shows them! Ok, the instructions say to use the OE bolts to connect the exhaust system to the y-pipe. Is this what you mean?

If so, I am not 100% sure as my exhaust uses a clamp in that position. My trucks are newer and show that they are M10 x 1.5 and could be 11547135 and if a stud it would be 11589264 and the nut for both is 15032594. Double check in case I made a mistake, my wife tells me I'm not perfect!

 

[07PPVTahoe]

Yes I'm wondering what the oe bolts are incase I have to replace

 

[07PPVTahoe]

These are what I'm talking about

 

[Fless]

These are what I'm talking about

Looks like there's enough bolt end sticking out to measure the diameter with a caliper, and take a paper imprint of the (lightly lubed) threads to measure pitch. Easy enough to estimate the length, which isn't critical.

 

[Fless]

You're gonna wanna PB Blaster those bolts for a few days before you try to run them out.

 

[swathdiver]

These are what I'm talking about

First and last part numbers I gave you if nut and bolt.

 

[07PPVTahoe]

Thanks guys, I ended up just cutting the bolts, they snapped immediately even tho I've soaked with PB. Got grade 8 bolts nuts and lock washers and installed the catback no issues otherwise. At the dyno tune right now. Thanks!!

 

[SpineDock]

So how did the dyno tune go?! Any gains?

 

[salisburyv]

also interested in dyno numbers

 

[07PPVTahoe]

also interested in dyno numbers

Hey guys sorry I never saw this. I put down 285 whp and 312 wtq with very few mods. Unfortunately it spun a bearing 2 months after, I got a new camaro and havent had time to do the 6.2 swap. And am moving soon. So unfortunately Im selling it. Id really like someone from the group to get it and continue the build

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[07PPVTahoe]

So how did the dyno tune go?! Any gains?

Made 285hp 312tq

 

[petethepug]

Story of our lives. When it rains, it pours.