[b0bsaget007]

Originally Posted by RobertAvitia

Are these ready to ship? And If I order the axle back system, would I be able to order the cat back system from the cat to the axle? Or would I receive the axle back system with the cat back pipes even tho already have the axle back pipes?

Yeah, like having the option to buy the mid-pipes separately. That way, you can start with the axle-back, then later on add the mid-pipes to have a full cat-back, which would be nice. Kinda like what Borla does with their axle-backs.

[BH Hooker]

Originally Posted by MotoBlaine

So im curious if going down to a 2.25''exit from the 2.5" would make a difference in power gains. Any thoughts along the development process you guys had and tested?

Hi, I am assuming you are talking about 2.25" at the tip exit after the mufflers???? If so, it depends on the length of the tube, but yes, it does change the power curve and sound.
Here at Holley, we always pride our development and push the envelope to create the most efficient product, so when we achieve that, the efficiency delivers performance. As far as my thoughts, it was, with our performance gains without a tuner, what would they do with a tuner????

[BH Hooker]

Originally Posted by RobertAvitia

Are these ready to ship? And If I order the axle back system, would I be able to order the cat back system from the cat to the axle? Or would I receive the axle back system with the cat back pipes even tho already have the axle back pipes?

Yes, axle backs are in stock and ready to ship. The axle backs are designed with the OE mid pipe, which results in a reducer to be able to slip to the OE. Our cat-backs eliminate this reducer for optimum flow, it is 3" into dual 2.5", with that, the axle back is not compatible without any modifications which I do not recommend.

[BH Hooker]

Originally Posted by b0bsaget007

Yeah, like having the option to buy the mid-pipes separately. That way, you can start with the axle-back, then later on add the mid-pipes to have a full cat-back, which would be nice. Kinda like what Borla does with their axle-backs.

Thanks for the input, we will consider this option with the team.

[MotoBlaine]

Thanks / I cant wait for the exhaust to be released ! This will be my first mod for my 2017 50th edition!

[RobertAvitia]

Originally Posted by BH Hooker

Yes, axle backs are in stock and ready to ship. The axle backs are designed with the OE mid pipe, which results in a reducer to be able to slip to the OE. Our cat-backs eliminate this reducer for optimum flow, it is 3" into dual 2.5", with that, the axle back is not compatible without any modifications which I do not recommend.

Can't wait for the cat back then! Hope I'm able to get it soon

[vaspen]

any reason for a 150(catted d.p) increase in price vs zzp?
I'm just stingy and I'm sure yours flow better but still you cant get too different in that area

[Evil-Bee-NH]

Originally Posted by vaspen

any reason for a 150(catted d.p) increase in price vs zzp?
I'm just stingy and I'm sure yours flow better but still you cant get too different in that area

The ZZP D.P. has been on the market for awhile as it was initially designed for the ATS. The price increase is likely due to R&D and initial cost recomp. That's just my assumption all in all I have the ZZP Hi-Flo D.P. and am very happy with it no CEL's in over 8k miles now and the power was felt after install.

[vaspen]

Couldn't have had too much r.d into it as its the same motor and frame as the caddy tho.. I just couldn't justify spending a extra 100$ for essentially the same thing. Not nocking hooker but ... This is just my honest opinion if they want it to sell they need to have pricing close to what's already out there

[BH Hooker]

Originally Posted by vaspen

any reason for a 150(catted d.p) increase in price vs zzp?
I'm just stingy and I'm sure yours flow better but still you cant get too different in that area

Hi Vaspen,

We appreciate and respect other competitors as we know the countless hours it takes to R&D parts for vehicles. Performance, fit and finish, production replication (assembly jig design), premium materials, bracket durability design (304SS has a high rate of expansion/shrinkage/growth) with all the heat cycles the product will endure, where it's made and length of the warranty are all considered with every manufacturer.

I'm certain ZZP makes a great product and it is ultimately up to the consumer to find the right price point and decide which is best for them.

[vaspen]

I know I'm not trying to upset anyone or anything I love your stuff but its just too much of a gap for me honestly id have to look into the warranty on both sides and other stuff first before I bought it

[BH Hooker]

Originally Posted by vaspen

I know I'm not trying to upset anyone or anything I love your stuff but its just too much of a gap for me honestly id have to look into the warranty on both sides and other stuff first before I bought it

Understood completely, and no upsetting here, we love continuous feedback as we believe that is one of the things that make our products great is our value to consumers' inputs. And thank you for the compliment about our products, we are not only design engineers and manufacturers but we are car enthusiasts as well.

Please let me know if there is anything else I can help you with.

[rorymick]

I saw prices for the axle back kits. Is there a price on the cat back kit yet?

I too would likely go axle back then catback so having the midpipe kit isn't a bad idea.

[rickwelch69]

Originally Posted by Corner carver

May I ask which downpipe you bought that was sans a grooved flange?

Yes RPM as they are local to me, I bought a package (catless D.P., body color match charge tubes and a tune)