Wisher Performance

Wisher Performance General Motors ECU Software/Calibration Specialist

👀 We heard y’all love stickers, so we delivered.All physical product orders placed through the Wisher Performance websit...
06/18/2026

👀 We heard y’all love stickers, so we delivered.

All physical product orders placed through the Wisher Performance website will now include a free Wisher Performance brushed aluminum die cut sticker.

Want extras? They’re now listed on the website and ready to go.

STICKERS:
wisherperformance.com/products/wisher-performance-brushed-aluminum-die-cut-sticker

AUXJECTION UPDATE:

We have a limited quantity of LT4 stock-supercharger AuxJection kits in stock that can ship this week.

At the moment, Magnuson 2650 kits are sitting at roughly a 1 to 2 week lead time for fulfillment.

Shop AuxJection:
https://www.wisherperformance.com/collections/auxjection

TEE UPDATE:

We’re still incredibly sorry for how this shirt drop went. It did not meet our standards, and we are working on getting the replacement tees done as quickly as possible.

Within the next few days, we will also have a limited number of discounted “garage sale” tees listed on the website. These tees are quality wise okay, but the logo placement did not meet our standard. Instead of being on the upper back, many are printed closer to the middle of the back.

Preorders for the corrected tees will stay open through the end of the weekend for anyone who still wants to get an order in.

AuxJection shipping update:All preordered Magnuson 2650 kits have shipped as of today.We also have a limited quantity of...
06/17/2026

AuxJection shipping update:

All preordered Magnuson 2650 kits have shipped as of today.

We also have a limited quantity of LT4 stock supercharger kits in stock that can ship this week.

At the moment, Magnuson 2650 kits are sitting at roughly a 1 week lead time for fulfillment.

Thanks to everyone for keeping us busy.
We appreciate your patience as we continue rolling these kits out 😎

Another great review from the website! We love reading these from you guys.___________________________________🌟 🌟 🌟 🌟 🌟 ...
06/16/2026

Another great review from the website! We love reading these from you guys.
___________________________________

🌟 🌟 🌟 🌟 🌟 5 star review from Dylan G.:

Everything was as described, included all needed tools and parts to complete. It is sleek and has an extremely clean look when installed. Wisher Performance is also incredibly easy to communicate with and always timely!

https://www.wisherperformance.com/products/auxjection-stock-supercharger

06/14/2026

We still see quite a few comments asking how much horsepower AuxJection can support, so we figured now would be a good time to showcase a car that our owner tuned today after Grayless Automotive and Performance completed some modifications.

The vehicle:
2016 Corvette Z06 Manual

The modifications:
Wisher Performance AuxJection
GPI PD Blower Cam
Kong X-Port LT4 Supercharger
Dedicated Motorsports 9.4 Lower / 2.3 Upper
DSX Aux Pump
NW103 Throttle Body
Rotofab Big Gulp Intake
Long Tube Headers

The results:
839 WHP / 762.5 lb-ft
66% Ethanol Content (best at the local pump😪)
Low-side fuel pressure maintaining ~65 psi
13 psi boost down low, ramping to 17 psi up top
Max AuxJection duty cycle of 54%

We felt like this car represents a fairly common mod list for a large portion of the LT4 community, so we felt the need to share 😎

Dyno graph in the comments 👇

AuxJection update:All backordered LT4 stock supercharger kits have shipped.All Camaro ZL1, Corvette Z06, and Stingray Ma...
06/10/2026

AuxJection update:

All backordered LT4 stock supercharger kits have shipped.

All Camaro ZL1, Corvette Z06, and Stingray Magnuson 2650 kits have also shipped.

Magnuson 2650 installation instructions for the ZL1, Z06, and Stingray have also been added to the website for customers getting ready for install.
You’ll have a QR Code in the lid of your kit box for easy access.

https://www.wisherperformance.com/pages/install-guides

Camaro SS and CTS-V Magnuson 2650 applications are currently awaiting custom fuel lines before those kits can be completed and shipped.

Installation instructions will be added soon for the Camaro SS and CTS-V.

Now that we’re caught up on the current batch, new AuxJection orders are currently estimated at 1-2 weeks for fulfillment.

We appreciate everyone’s patience while we worked through the backorders and application-specific components.

Y’all are keeping us busy 💪🏼

T-shirt preorder update:After reviewing the recent shirt order, we found print placement inconsistencies that do not mee...
06/10/2026

T-shirt preorder update:

After reviewing the recent shirt order, we found print placement inconsistencies that do not meet our standards.

A small number of shirts were sent out before we caught the issue, and we take full responsibility for not catching it sooner.

We have spoken directly with everyone affected, and replacement shirts will be sent out free of charge as soon as the new ones are completed.

For those who have asked about purchasing shirts, we will have them back on the website once the issue is fully corrected and the shirts are up to our standards.

We appreciate everyone’s patience and understanding. Anything with the Wisher Performance name on it should be som**hing we are proud to send out, and we’re making it right.

Thanks for the review, Armin! We appreciate the feedback.If you've purchased AuxJection and haven't left a review yet, y...
06/05/2026

Thanks for the review, Armin! We appreciate the feedback.

If you've purchased AuxJection and haven't left a review yet, you can leave one directly on the website. It helps us more than you know.
____________________________

🌟 🌟 🌟 🌟 🌟 5 star review from Armin Morshed:

Works fantastic! Easy to tune and the kit is top notch. I like this solution over m**h and port injection due to cost factor and reliability. A+ product!

https://www.wisherperformance.com/products/auxjection-stock-supercharger

Shipping Updates for AuxJection Kits & Preordered Tees: As of today, all LT4 stock supercharger AuxJection kits will hav...
06/04/2026

Shipping Updates for AuxJection Kits & Preordered Tees:

As of today, all LT4 stock supercharger AuxJection kits will have shipped by end of the day.

LT4 stock supercharger kits are back in stock on the website.

For Magnuson 2650 kits, ZL1 and C7 Z06 applications are next up. Fitment is finalized for those, and we’re expecting the remaining components needed to complete them within the next day. So these should ship by this weekend or early next week at the latest.

Magnuson 2650 Camaro SS and CTS-V applications are still in final fuel line fitment validation. Those will follow shortly after once fitment is confirmed.

All preordered shirts have also either shipped or customers have been contacted for pickup.

We appreciate everyone’s patience while we work through each batch and make sure everything is right before it leaves here.

Wisherperformance.com/collections/auxjection

Global B testing is getting interesting.Diego’s Wisher Performance tuned Escalade-V is still sitting at the top of the D...
06/01/2026

Global B testing is getting interesting.

Diego’s Wisher Performance tuned Escalade-V is still sitting at the top of the Dragy Escalade-V 1/4 mile leaderboard with a 10.76.

Now Wisher Performance’s own CT5-V Blackwing has moved into the #3 spot on the Dragy CT5-V Blackwing 60-130 leaderboard with a 6.72 after an additional trans tune yesterday.

We’re still early in the Global B AuxJection testing process, but the results so far are looking very promising.

We put together a full blog breakdown on the Blackwing testing, setup, track results, Dragy data, and what we learned so far, along with a little more info on the Escalade-V.

Read the full breakdown here:
https://www.wisherperformance.com/blogs/tech-blog/ct5-v-blackwing-auxjection-testing-76-ethanol-content-stock-low-side

📸: Evan McClure

Address

Greentown, IN
46936

Telephone

+17656273047

Website

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