PLEASE NOTE: Performance Improvements is closing on September 30, 2022.

All purchases made after September 3, 2022, during our Clearance Sale are "FINAL SALE - No returns, refunds or exchanges."

After selling performance auto parts in Ontario for 58 years, family-owned and operated Performance Improvements Speed Shops to close all locations after one last "clear-out" sale. Read More HERE.

P.I. Speed Shops

We can't fix your car, but we can make it better!

Performance Improvements Speed Shops Canada

Over 55 Years of High Performance in Canada

In the performance auto parts business since 1964, Performance Improvements prides ourselves on serving the needs of our customer. As car guys (& gals) ourselves, we know the frustration of laying in the driveway missing the part we need to get back on the road! We try to help you take home all the parts you need to actually install that performance auto part or accessory on your car. 


Performance Improvements co-founder Susan McJannett in front of the original location at 1268 the Queensway

FIRST LADY OF PERFORMANCE - Performance Improvements co-founder Susan McJannett out front of the original location at 1268 the Queensway in her 1958 Pontiac Parisienne two-door hardtop.


P.I. Speed Shops Canada

Canadian Family-Owned Speed Shop

In 1964, a young Susan McKee was tired of listening to her boyfriend, Bob McJannett, complain about the bad customer service he received while buying his performance auto parts, and thought they could do better. She invested all her savings, $1,500, to open their own part-time speed shop in Etobicoke. (Susan wisely waited a year to see if her investment would pay off, before investing in Bob and becoming Susan McJannett.) Over 55 years later, this family-run Canadian business is still going strong.


Bob & Susan McJannett

HIGH PERFORMANCE COUPLE- Bob & Susan McJannett turned that $1,500 investment into a successful chain of Speed Shops.

All Canadian Speed Shop since 1964

Toronto based Speed Shop since 1964. Originally located at the corner of Kipling and the Queensway, Performance Improvements ("the Modern Hot Rod Shop") was a part-time job for Bob. His goal in selling Carburetors, Manifolds, Mufflers, Wheels, and Tires to fellow car enthusiasts was simply to make enough money to cover the rent. Success came as a result of the commitment to customer service, standing by every product sold with a no-hassle return policy.


Rob & Andy McJannett standing in front of Project 33 their FactoryFive 33

MCJANNETT BROTHERS - Rob & Andy McJannett standing in front of Project 33 their FactoryFive 33

Second-Generation Family-Owned Speed Shop

Day to day operations are now handled by Andy & Rob, second-generation merchants of speed. Our focus on customer service has allowed us to grow both in our bricks and mortar stores and now, online. We have hundreds of thousands of items available that are not online - yet!


Performance Improvements co-founder Bob McJannett inside the original location at 1268 the Queensway

HOT ROD BOB - Performance Improvements co-founder Bob McJannett inside the original location at 1268 the Queensway. When you choose PERFORMANCE IMPROVEMENTS, you can trust you’ve chosen the industry leaders. We’re not only SEMA members, but the winners of the ‘SEMA Warehouse Distributor of the Year Award.’ Our founder, Bob McJannett is the only Canadian winner of the prestigious ‘SEMA Person of the Year’ and was inducted into the ‘SEMA Hall of Fame’ for his life long commitment to the performance industry. (He’s also got a 5-star rating on Uber)

Performance Auto Parts Canada

Our Warehouse Superstore at 87 Advance Road, Etobicoke, Ontario M8Z 2S6 is the largest Speed Shop in Ontario. Our locations stock performance auto parts and accessories from major manufacturers including AEM Electronics, AEM Induction, Aeromotive, Allstar, Anvil Off Road, Autometer, B&M, BOOSTane, Brightsource, Bully Dog, Cartech Books, Cataclean, Cruiser Accessories, Derale, Design Engineering, Diablosport, DINAN, Divide It, Driven Racing Oil, Earl's, Edelbrock, Edge Products, Element Fire, Evans Cooling, Fender Gripper, Fitech Fuel Injection, Flowmaster, Flwtech, Holley, Holley Classic Trucks, Holley Sniper, Hooker, Hurst, Hushmat, K&N, Leed Brakes, Lucas Oil Products, Lumens, Magnaflow Exhaust Products, McGard, Misc., Mishimoto, Pertronix, Mouse Blocker, Mr Gasket, MSD, Northern Radiator, Painless Performance, PI Speedshops, Proform Parts, Race Gas, Racequip Inc, Range Technology, Red Line, Remflex, Royal Purple, Russell, SA Design Books, SCT Performance, Scott Drake, So-Cal, Superchips, TKO Performance, Vibrant Performance, Weathertech and much more.

Henry Stancu wrote a nice article about the beginning of P.I. in the Toronto Star:

Auto-parts firm built on blind faith and fast cars

Bob McJannett's passion for customizing hotrods, along with his wife's support, made Performance Improvements a 50-year success story.
Toronto Star for


OVER 50 YEARS OF PERFORMANCE - Performance Improvements has had many logos since 1964.

Legal Name: Performance Improvements Speed Shops Limited
Head Office: 87 Advance Road, Toronto, ON M8Z 2S6
Founders: Bob & Susan McJannett
Founding Location: Etobicoke, ON
Founded: 1964
Categories: Auto Parts Store, Automotive Parts and Accessories Stores, Motor Vehicle Parts and Accessories, Performance Auto Parts, High-Performance Auto Parts, Auto Parts & Accessories, Aftermarket Auto Parts





A true all-Canadian Speed Shop, unlike a lot of websites, we are an actual brick and mortar business with locations in Southern Ontario: Toronto, Barrie, & Hamilton. We don't hide behind email only contact forms. You can call us Toll-FREE across Canada: 1-877-471-6700 during normal business hours (usually 9 - 6 EST Monday to Friday, 10-5 Saturday and 12-5 Sunday)

We are closed during all Statutory Holidays in Canada: New Year’s Day, Family Day, Good Friday, Easter Sunday, Victoria Day, Canada Day, August Civic Day, Labour Day, Thanksgiving Day, Christmas Day, Boxing Day. Contact us to confirm hours.


Thank you from Performance Improvements

Fast Shipping Canada-Wide  |  P.I. Speed Shops - Easy Returns Policy  |  Contact Us

P.I. Speed Shop Locations:
Toronto - Barrie Hamilton

Performance Improvements - Easy Return Policy

Quick Easy Returns - We stand behind everything we sell. Our no hassle return policy gives you peace of mind with every auto parts purchase from Performance Improvements. Almost anything you buy from us, you can return for exchange, credit or refund. All we ask is that it is unused with the packaging intact & have your receipt. See details and exceptions here.


Excellent Service and Knowledgeable Staff!


Performance Improvements - Help With Warranties

We're here to assist you with any warranty issues. A warranty means nothing if the shop you bought it from makes you deal with it on your own. Performance Improvements has relationships with all the major automotive aftermarket manufacturers. When our customers have a problem, and the manufacturer does not demand that all warranty issues go through them, we do our best to help our customers until it's resolved. 

Performance Improvements manager Mike Bennett talking to a customer on the counter

CAR GUYS HELPING CAR GUYS - Mike Bennett talking to a customer on the counter


P.I. Speed Shops - No Excessive Duty, Brokerage "Handling" Charges

No Summit Surprise! Canadians buying from the big American mail-order companies have learned the hard way that the price you see on the screen, is not the price you pay when it gets to your door. Shipping & "Handling" charges, Duty, Brokerage Fees and Taxes all end up making the price vastly higher than the original number. Summit Racing has finally updated their shopping cart to show customers the various shipping charges they will be facing: Shipping Charge, Tax & Duty, then an Additional Shipping Charge, and finally a Delivery and Handling Charge! Support your local Speed Shop.


Family Owned Companies are Always the Best!


Performance Improvements - We're Here For You

All our salespeople are here to give advice. Whether on the best way of installing a part, or where to find the best local mechanic, we live in your neighbourhood. We have Performance Improvements auto parts stores located across Southern Ontario: Barrie, Hamilton and the head office in Toronto. We deal with manufacturers directly - when you buy your parts from us we can get you the help you need - not send your part back across the border and wait for someone to get to it.


Performance Improvements salesman Alan MacDonald helping out a customer on the phone

HELP WITH YOUR PROJECTS - Performance Improvements salesman Alan MacDonald helping out a customer on the phone.

Performance Improvements - Fast Shipping Canada-Wide

We will cover the shipping and handling costs on orders over $149* to most Canadian addresses** on virtually*** everything we sell! And you NEVER pay duty or brokerage when you shop with us!
In-stock items ordered before 4pm EST ship the same business day! Even out-of-stock items ship fast! Generally, we can ship out of stock items within 4-5 business days.
In the event we cannot ship within this time-frame, we will contact you before proceeding with your order.

Qualifying orders ship free for fast Canada-wide delivery. Need it faster? Optional upgrade to Purolator Express available too! See Shipping details HERE

Excellent Service and Excellent Price, Very Happy!


Performance Improvements - Real Canadian Speed Shop

Unlike a lot of websites, we are an actual brick and mortar business. We are not owned by an American company, we are still an all-Canadian family business. We don't hide behind email only contact forms. You can call us Toll FREE: 1-877-471-6700 during normal business hours. Ontario Speed Shop locations: Toronto 416-259-9656  -  Barrie 705-735-1274  Toll Free in Barrie 1-888-899-2414  -  Hamilton 905-574-6940

This company values Customer Service as a High Priority!


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