Authentic Performance

Authentic Performance Your Power Brokers Performance solutions with premier brands and personalized service for fans of classic and modern muscle cars! You will be treated right!

We specialize in Chrysler, Dodge, Jeep, RAM, Camaro, Corvette performance vehicle enhancements......and old classic muscle cars too! We also have a brand new 2000 HP/200 MPH Dynojet Model 224xLC Inertia Dyno with Eddy current brake option that can perform load tests including step, sweep and loaded roll-on. Please book a personal appointment with us today.

MOPAR NEW & USED PARTS - SHOP CLOSING SALE !!!   If interested in any of the items in the list below TEXT Glen at (416) ...
03/26/2023

MOPAR NEW & USED PARTS - SHOP CLOSING SALE !!!

If interested in any of the items in the list below TEXT Glen at (416) 358-1686, FB MESSENGER or E-MAIL at [email protected]. Prices are in Canadian Dollars.

Items can be shipped to your door for additional fee or picked up at 6067 Kingston Road, Scarborough by appointment only.

Preferred payment is cash or e-transfer. Paypal is also an option. No credit cards please.

This is a PARTIAL LIST ....... If there is anything specific you need not on here for any MOPAR performance CAR or JEEP (and some limited RAM stuff), let me know and I may have it.

I am also possibly having an OPEN HOUSE SALE at the shop when the weather warms up in early May to clear many many more good condition used parts and tools AND/OR I will have a tent with parts at the GTAlx show in Brampton June 3rd. Stay tuned for that!

- Glen

**** UPDATES LIST with enlarged spreadsheet pictures and some price changes.

Wishing all friends and their families a very Merry Christmas, Happy Holidays and an upcoming Happy New Year!
12/25/2022

Wishing all friends and their families a very Merry Christmas, Happy Holidays and an upcoming Happy New Year!

** ANNOUNCEMENT **It is with a heavy heart that I am announcing the upcoming closure of Authentic Performance on October...
10/14/2022

** ANNOUNCEMENT **

It is with a heavy heart that I am announcing the upcoming closure of Authentic Performance on October 28th to all new business. Due to ongoing and increasingly challenging health issues and impact of the recent COVID years, I will be retiring and winding down a business which I love.

It has been a great run over the last 9.5 years offering modern muscle performance solutions (and the odd classic here and there) to the local Toronto and Canadian Mopar and GM-based vehicle community.

You can’t deliver custom performance solutions without the best people, partners and products and that starts with my partner in crime and team mate Adam Clay. The goal from the outset for both of us was to go above and beyond and offer education on premium solutions, and do the best installation we could possibly do ….. and Adam has been an absolute pleasure to work with and delivered on all levels and then some! I am very happy to have collaborated together and share a passion for cars and customers, and so proud of what we produced together. Thanks for everything my friend!!

I would also like to thank Matthew Wayling for offering some nighttime install and repair expertise support when we needed an extra hand!

We had many, many great partners and suppliers and far too many to list here, but want to thank you all for working with us closely and supplying best-in-breed products, services and most importantly friendship!

We could not have gotten this far without some amazing tuning expertise. If anyone knows modern muscle performance, they know you can install the best products possible, but without proper tuning, all those parts won’t dance together without a good calibration. I can’t thank AJ Berge from Hemituner Performance enough for his expert solution guidance and the hundreds of amazing tunes he provided from the very beginning and over the years as we grew! I would also like to thank Johan Mangs from Diablotoona LLC and Edgard Niebles from Dsmlights Tuning for their awesome tuning skills and prompt service whenever we came calling! Wow what an “Eh-Team” of tuners we had to work with on our Dyno and the street!

We were also nothing without our customers, and Adam and I want to thank our many loyal clients for their trust and support over the years. Custom builds and high performance automotive require lots of patience and we want to extend our heartfelt THANK YOU to over 700+ customers for your business and friendship!

We produced some amazing and memorable custom high performance Mopar builds along the way. When something didn’t work out or parts failed, we made things right as best we could, which is the only way good service should be defined. We feel we built a great reputation in the Mopar community for quality and offering fair honest pricing and turning customer’s dreams into reality …… and that makes both Adam and I happy at the end of the day!

Lastly I would like to thank my wife Jane for her continued support in so many ways and for supporting my automotive passion every day!

Over the next few weeks be sure to check out our Kijiji page and FB Marketplace for deals on some new parts we have in stock and some good quality gently used items https://www.kijiji.ca/o-profile/1021749931/listings/1 .

Thanks to all and see you at the drag strip or car show next Spring!

- Glen

Ah Fall boost with a HEMI, there is nothing like it!Check out this build we just delivered yesterday to David from Winds...
09/29/2022

Ah Fall boost with a HEMI, there is nothing like it!

Check out this build we just delivered yesterday to David from Windsor.

Adam did a masterful job on the install with this beautiful 2019 Challenger 392 S**t Pack manual 6 speed and only 4,000 km!

Here are the mods:
- Drop-in forged 2618 pistons and rods from Modern Muscle Xtreme LTX
- Custom Boost Cam from Modern Muscle
- FORE Fore Innovations, LLC returnless drop in dual pump
- Whipple Superchargers 3.0L GenV Supercharger kit
- 3.5" upper pulley (stock size with 6.4 Whipple kit)
- 6% ATI ATI Racing damper
- Smooth Boost kit from Modern Muscle
- StainlessWorks Long Tube Headers and cat-back
- McLeod Clutches RST clutch
- Billet Technology catch can in black
- Engine machining and assembly by Nash Competition Engines Engines
- Expert tuning with HP Tuners from Edgard at Dsmlights for 93 octane

At only 7.5 lbs boost, it put done fantastic numbers of 708 RWHP / 590 TQ on our Dynojet. This thing isn't even working hard yet!

Well we went to new heights on one of our latest projects!One of our regular customers brought in a new 2022 RAM Powerwa...
07/06/2022

Well we went to new heights on one of our latest projects!
One of our regular customers brought in a new 2022 RAM Powerwagon with 400 kms and wanted some suspension and electronic / lighting upgrades, along with modifying his snowmobile trailer.
Adam did a fantastic job on the lift, undercarriage, side step upgrades and massive widow-maker 37” wheels, while I got off easy on some lighting, CB Radio and trailer mods.
I must say RAM did an amazing job on the 2500HD 6.4L from interior to heavy duty off road components and trailer video cameras.

06/01/2022

If you are not already aware, the annual GTALx charity car show gathering is on this coming Saturday, June 4th from 10am-3pm at the Heart Lake Conservation Area in Brampton, Ont.

After a 2 year break due to COVID, we are back as the prime sponsor again this year.

The one and only Fram-Man Bryan Minhinnett has organized another great event and although there will be no vendors this time, there are still lots of good friends showing off their Mopars, food and cool prizes and perfect weather in the mid 20s reported.

So see if you can spare a few hours, come for a walk-about with your friends or family.

https://gtalxevent.ca/?fbclid=IwAR293X2eBHl2brrqRv-kcjJc2W3KDcX2s6Ly4bNFC03Xd6fRauTp4wvIVg8

https://www.facebook.com/GTALXevent/

An annual charity event, benefitting Peel Children's Aid Foundation, produced for and attended by the classic and modern Mopar owner.

Adam and I would like to wish everyone a VERY MERRY CHRISTMAS and upcoming holiday week!THANK YOU for trusting us with y...
12/25/2021

Adam and I would like to wish everyone a VERY MERRY CHRISTMAS and upcoming holiday week!

THANK YOU for trusting us with your performance projects in 2021 and putting up with all the parts delays.

We have the best partners and suppliers in the business and we all still have the passion to deliver the best performance solutions we can.

It has been another tough year for businesses and living life as we were used to before the pandemic ........ so here is hoping that we can all recharge with our families and look forward to a better year in 2022!

- Glen

The new, long awaited Whipple Superchargers Gen5 3.0L kit for the 6.2L-based Hellcat motor is finally in the house!This ...
11/19/2021

The new, long awaited Whipple Superchargers Gen5 3.0L kit for the 6.2L-based Hellcat motor is finally in the house!

This unit will also fit on the Charger Hellcat, Demon, Durango Hellcat and Trackhawk.

We are installing this on a 2016 Challenger Hellcat over the next few weeks and will post video and dyno results. Should be fun !

Wishing Adam Clay a big Happy Birthday today!  From cars shows to big boost project rodeos, it has been a blast working ...
11/12/2021

Wishing Adam Clay a big Happy Birthday today!

From cars shows to big boost project rodeos, it has been a blast working with you over the past 8 1/2 years! I always appreciate how hard you work each day and hope you have a great day off and enjoy the day with your beautiful wife Kathleen Ward-Clay !

If you are looking to handle BIG boost on a 426 Hemi,  it doesn’t get much better than these billet Gibtec Pistons !Many...
09/25/2021

If you are looking to handle BIG boost on a 426 Hemi, it doesn’t get much better than these billet Gibtec Pistons !

Many thanks to AJ at Hemituner Performance for helping source these for us and Mike at Nash Engines for the short block machining and assembly!

We will be firing this baby next week and tune it on the dyno with AJ. Stayed and be tuned!

We love high performance custom Mopar builds and this 2000 HP Twin Turbo '68 Charger creation from Nelson Racing Engines...
08/05/2021

We love high performance custom Mopar builds and this 2000 HP Twin Turbo '68 Charger creation from Nelson Racing Engines is truly amazing on every level!

Details like automatic switching pump to race fuel system to leather wrapped roll-bar makes this a one-of-a-kind labour of resto mod love.

It took Nelson Racing Engines nearly eight years to build this 2,000hp twin-turbo 1968 Dodge Charger. When you read the story, you will understand why.

Something different for a change …… some 3.6L V6 boost action!   Adam did a great job last week on the install of a Magn...
08/01/2021

Something different for a change …… some 3.6L V6 boost action!

Adam did a great job last week on the install of a Magnuson TVS1900 supercharger kit on this 2019 Jeep Wrangler JL.

Dyno numbers to come but we expect 370-380 at the rear wheels on this nice kit.

Address

6067 Kingston Road
Toronto, ON
M1C1K5

Telephone

+14163581686

Website

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