[WiggyB]

So I'm curious if there would be any type of gains to just changing out the midpipes from my headers to the factory exhaust? I know there are gains (soundwise not power) doing a full exhaust headers back but I want to actually keep the factory suitcase as its called.

I love the should the headers and h/f cats to the factory box but was thinking changing out the midpipes would adjust the tone a little bit.

Thoughts...........................

[KingLT1]

If it's an auto, then there will be some small gains deleting the afm valve section. If it's a manual, then no.

[WiggyB]

Originally Posted by KingLT1

If it's an auto, then there will be some small gains deleting the afm valve section. If it's a manual, then no.

That's exactly what I was thinking too. Pretty much done with my mods so trying to find another reason to blow some money.

[Ventmaster]

Lotta people will say it's a waste of money, but if you're just zeroing in on tone, I'd suggest the "crush pipe delete" option of Hooker- https://www.americanmuscle.com/hooke...1&gclsrc=3p.ds

It's a subtle change, but I think you'd like it!

[WiggyB]

Originally Posted by Ventmaster

Lotta people will say it's a waste of money, but if you're just zeroing in on tone, I'd suggest the "crush pipe delete" option of Hooker- https://www.americanmuscle.com/hooke...1&gclsrc=3p.ds

It's a subtle change, but I think you'd like it!

This is exactly what I'm looking for. I know from those that say even though the crushed area doesn't effect the flow but like you said there should be a slight change in the tone.

[WhiteMale]

If I was gonna do that I'd look at a resonated midpipe like I think AWE(?) has something.

[Ventmaster]

I posted a couple of pics for this old thread that I thought illustrated just how significant the crushed area is. https://www.camaro6.com/forums/showt...t=crush+delete post #12.

I think Chevy did a great deal of computer modelling to ensure no loss of flow and also think they're utilizing the shape change to create a resonation of that sound that has a higher pitch and a wicked, more exotic sound from the factory.
But some of us just want that unmistakable "big displacement V-8" sound.

[KingLT1]

Originally Posted by Ventmaster

Lotta people will say it's a waste of money, but if you're just zeroing in on tone, I'd suggest the "crush pipe delete" option of Hooker- https://www.americanmuscle.com/hooke...1&gclsrc=3p.ds

It's a subtle change, but I think you'd like it!

They don't work on automatic cars. The afm valve section of the pipe is a slightly different angle then the manual cars. Tried it already...ended up going with a borla 60608 resonated x pipe. And yes there is some small gains deleting the afm valve section before the crush section. The crush section has shown to not be restrictive until making a lot of power.

[WiggyB]

Originally Posted by WhiteMale

If I was gonna do that I'd look at a resonated midpipe like I think AWE(?) has something.

I'll look into that also.... thanks for the input.

[John Simon]

the gains are very minimum.

[Briland_1LE]

You can change the OEM Xpipe for an Hpipe to get a different sound. Hpipe should give you a more classic muscle car lopey sound.