[VENDOR][FS]: Kia Stinger 3.3T - Ultimate Performance HFC Downpipe + Mid Pipe Kit - K8 Stinger Store

[Daniel @ K8 Stinger Store]

Is excited to present to the Stinger forums:

3.3T - Ultimate Performance HFC Downpipe + Mid Pipe Combo Kit

(BUY NOW)

Description:
Ultimate Performance LLC is proud to offer their new high-flow catted downpipe/mid-pipe combo for the 2018-2023 Kia stinger 3.3L.
The primary downpipe portion features an upgraded flange that bolts directly to the stock turbos, the exhaust port opening was increased from 1.25” to 2.4”!
This kit bolts directly onto the turbos and extends all the way back to your factory, or aftermarket cat-back exhaust.
The entire kit is made from 2.5” polished 304 stainless steel, and back purge TIG welded for the utmost quality.
The kit will WILDLY improve turbocharger spool time, as well as power across the RPM range.
Featuring a 2 piece slip fit construction for easy installation and a direct bolt-on fitment.
These are built to last!
THIS KIT IS NOT JUST SECONDARY MID PIPES, IT'S PRIMARY DOWNPIPES & MID PIPES IN ONE KIT!

Features:
CNC'd flanges and bungs
Magnaflow high flow cats
100% handmade in the USA
All hardware included for installation
2.5" T304 stainless steel mandrel bent tubing
100% Tig welded and back purged for perfect penetration
A bench flash tune is highly recommended for “ultimate performance”

Vehicle Application:
2018-2023 Kia Stinger 3.3T

THANK YOU FOR LOOKING!​

 

[ChiTownStinger]

Interested to hear more on this from someone who has it installed.

 

[Anarchy99]

Same here....I wanted to buy it but $1400 with no dyno to show us what the potential is or even track times, no clear indication if you will get overboost codes without a tune.

Sound clips sound really good though.

Want to see how this progresses.

 

[ChiTownStinger]

Same here....I wanted to buy it but $1400 with no dyno to show us what the potential is or even track times, no clear indication if you will get overboost codes without a tune.

Sound clips sound really good though.

Want to see how this progresses.

Where are the sound clips?

 

[Anarchy99]

Where are the sound clips?

Hit up the Stinger Owners Facebook page, he has some rev videos. Type in Ultimate Performance.

 

[WildBill]

Yeah, the clip sounded amazing. You won't want a muffler delete and this installed!

From my understanding this kit removes the factory primary and secondary cats, replaces them with high flow cats and runs the piping down to the point at which a typical cat back exhaust would hook up.

Most have been calling the pipe between the primary cat and the exhaust the downpipe and the section between the downpipe and the axle area as the midpipe.

Just need to clarify the terminology.
I think this description will mess a lot of people up.

 

[DaJackson]

Still not sure why this is $1500

 

[WildBill]

My guess is the premium for replacing the 2 cats with single high flow varieties.
They are first to market.

 

[DaJackson]

My guess is the premium for replacing the 2 cats with single high flow varieties.
They are first to market.

First to market I’ll agree with but charging more for downpipe a than most catbacks is crazy talk to me.

I’m waiting on the SSR secondary delete to ship so I don’t have to worry about overboost codes. Someone will come out with a more reasonably priced primary delete with testing to back it up soon.

 

[STINGER]

Good HFC's do cost a lot, and they seem to have used ones with 6" maybe even an 8" body which is more than your typical 3" that most use, so they must be expensive. Typically downpipes with dual HFC's go for $1,500+, so the price for this I think is reasonable.

My only grip is that they didn't go with a cast wide mouth inlet that is shaped exactly like the turbo outlet, even though it is 2.4" at the inlet it will still have areas that will block and cause turbulence.

 

[Jonathan Lasich]

Good HFC's do cost a lot, and they seem to have used ones with 6" maybe even an 8" body which is more than your typical 3" that most use, so they must be expensive. Typically downpipes with dual HFC's go for $1,500+, so the price for this I think is reasonable.

My only grip is that they didn't go with a cast wide mouth inlet that is shaped exactly like the turbo outlet, even though it is 2.4" at the inlet it will still have areas that will block and cause turbulence.

I agree!

So, how many hours figured for install time?

Does the engine have to be dropped to install the primary downpipes?

This must be good for an additional 50 HP with proper tuning, I would imagine?

 

[Daniel @ K8 Stinger Store]

Same here....I wanted to buy it but $1400 with no dyno to show us what the potential is or even track times, no clear indication if you will get overboost codes without a tune.

Sound clips sound really good though.

Want to see how this progresses.

Dyno sheets are coming, hoping in a week or two. O2 sensor non-fouler included to keep a cel from coming on

A tune is recommended

Still not sure why this is $1500

The cost associated with this is the addition of the HFC and the additional piping. This would be a turboback system with the addition of a catback exhaust. Not just test pipes if you're comparing to something like Jun BL

First to market I’ll agree with but charging more for downpipe a than most catbacks is crazy talk to me.

I’m waiting on the SSR secondary delete to ship so I don’t have to worry about overboost codes. Someone will come out with a more reasonably priced primary delete with testing to back it up soon.

These are 400 cell EPA federal converters, this is especially important for those that legally can't run test pipes and pass emissions. I'm waiting for confirmation if tuning is required to prevent overboosting or not with these

Where are the sound clips?

https://www.facebook.com/video.php?v=2284823511547055

 

[Jonathan Lasich]

Dyno sheets are coming, hoping in a week or two. O2 sensor non-fouler included to keep a cel from coming on

A tune is recommended

The cost associated with this is the addition of the HFC and the additional piping. This would be a turboback system with the addition of a catback exhaust. Not just test pipes if you're comparing to something like Jun BL

These are 400 cell EPA federal converters, this is especially important for those that legally can't run test pipes and pass emissions. I'm waiting for confirmation if tuning is required to prevent overboosting or not with these

https://www.facebook.com/video.php?v=2284823511547055

So, with the O2 sensor non fouler installed, if there is no tune on the car, i assume no CEL or other warning lights illuminated? I'm planning on an ECU tune with a spare ECU, so for service at the dealer put the OEM ECU back on the car so no indication of a tune on the car. I'm thinking about when we take the car back to the dealer for service. No issues that would alert the service tech that something is amiss?

 

[Daniel @ K8 Stinger Store]

So, with the O2 sensor non fouler installed, if there is no tune on the car, i assume no CEL or other warning lights illuminated? I'm planning on an ECU tune with a spare ECU, so for service at the dealer put the OEM ECU back on the car so no indication of a tune on the car. I'm thinking about when we take the car back to the dealer for service. No issues that would alert the service tech that something is amiss?

From an ECU standpoint there will not be a check engine light, that doesnt mean they can't make a visual note that these are installed.

 

[Jonathan Lasich]

That's OK. Them being installed doesn't bother me. Detecting an ECU tune would be a problem. As long as the dealership thinks that the only mods are the downpipes (if they check) and nothing else, I should be OK. The dealership is mod friendly.

 

[Daniel @ K8 Stinger Store]

That's OK. Them being installed doesn't bother me. Detecting an ECU tune would be a problem. As long as the dealership thinks that the only mods are the downpipes (if they check) and nothing else, I should be OK. The dealership is mod friendly.

Those are the best dealerships to have

 

[Oryan]

1400 for two big, quality magnaflow cats isn't crazy. It's about in line with a lot of other platforms and assuming design and quality is there is a perfectly reasonable price. Can't wait to see these on a dyno.

 

[STINGER]

1400 for two big, quality magnaflow cats isn't crazy. It's about in line with a lot of other platforms and assuming design and quality is there is a perfectly reasonable price. Can't wait to see these on a dyno.

The overall price $1,400 considering that they are using MagnaFlow HFC's and that it is basically both down-pipe and mid-pipe is a good deal.

You get what you paid for at the end, as MagnaFlow HFC's and the like (SLP, Flowmaster etc etc) don't flow as good or last as long as the higher quality (and more expensive) HFC's such as the German made HJS when used in high performance turbo applications. Cars that are tuned and run higher EGT's will give the HFC a hard time and many using the lower quality HFC's have reported melting them or rattling due damage etc. I would say the second best available HFC's are made by GESI (Vibrant).

I personally would have liked to have seen this with 200 CELL HJS HFC's and a widemouth (bellmouth) design at the turbo flange for maximum flow, definitely with the HJS HFC's it will be closer to the $2k price range which I will be happy to pay as I have used HJS HFC's before, they will outflow and maintain better cleaning quality and outlast any HFC out their.

 

[Jonathan Lasich]

Dyno sheets are coming, hoping in a week or two. O2 sensor non-fouler included to keep a cel from coming on

A tune is recommended

The cost associated with this is the addition of the HFC and the additional piping. This would be a turboback system with the addition of a catback exhaust. Not just test pipes if you're comparing to something like Jun BL

These are 400 cell EPA federal converters, this is especially important for those that legally can't run test pipes and pass emissions. I'm waiting for confirmation if tuning is required to prevent overboosting or not with these

https://www.facebook.com/video.php?v=2284823511547055

This I would like to know!

 

[Daniel @ K8 Stinger Store]

Right now I've got some temporary data on this for you guys on the mid/downpipes! Dyno sheets are soon to come but feeding you guys as much information as I have as it comes to us

Current set up:

• Ultimate Performance Upgraded Intercooler + Ultimate Performance Mid/DownPipes + Mild tune from Tork
• at 5200 ft elevation with a density altitude of 7800 feet. The weather was also pretty bad with 20 mph headwind.

-Stock run 13.7@101 MPH
-Bolt-ons w/tune run 12.7@109.6 MPH