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Performance Improvements Speed Shops

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


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, Brampton, Hamilton, & Oshawa. 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) Contact us to confirm hours. 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 | Fast Free Shipping  |  365 Day Return Policy  |  P.I. Speed Shop Locations: Toronto - Barrie - BramptonHamilton - Oshawa - Quebec

All Canadian Speed Shop since 1964

In the auto parts business for over 50 years, Performance Improvements prides ourselves on serving the needs of our customer. As car guys 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 item on your car. 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
Performance Improvements co-founder Susan McJannett in front of the original location at 1268 the Queensway

Canadian Family-Owned Speed Shop

In 1964 a young Bob McJannett, tired of buying his performance auto parts from shady characters in dirty garages, opened his own speed shop. (With his girlfriend Susan's money!) Over 50 years later, this family-run Canadian business is still going strong, as is Bob & Susan's marriage!

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 30 day return policy.

Over fifty years later, Performance Improvements has five locations across southern Ontario. Our Warehouse Superstore at 87 Advance Road, Etobicoke, Ontario M8Z 2S6 is the largest Speed Shop in Ontario. These locations stock performance auto parts and accessories from major manufacturers including Edelbrock, B&M, Holley, Royal Purple Synthetic Oil, Flowmaster, Spectre Performance, MSD Ignition, Hurst Shifters, AutoMeter Gauges, Mr. Gasket, PlastiDip, K&N Performance Filters, Lumens H.I.D Headlights, Proform Performance and much more.

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

365 Day 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 within 365 days 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.

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 thet 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

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.

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, Brampton, Hamilton, Oshawa, 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

Fast Shipping Canada-Wide

We will cover the shipping and handling costs on orders over $99* 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 2-3 business days.
In the event we cannot ship within this time-frame, we will contact you before proceeding with your order.
Qualifying orders ship via Purolator Courier ground for fast cross-country delivery. Need it faster? Optional upgrade to Purolator Express available too! See Shipping details HERE


Unlike a lot of websites, we are an actual brick and mortar business. We don't hide behind email only contact forms. You can call us Toll FREE: 1-877-471-6700 during normal business hours Six locations to serve you: Toronto 416-259-9656  -  Barrie 705-735-1274  Toll Free in Barrie 1-888-899-2414  -  Brampton 905-453-9901  -  Hamilton 905-574-6940  -  Oshawa 905-725-3533  -  Quebec 514-626-1866

Manufacturers Performance Improvements Speed Shops sells include: Accel , Addco , AEM , Aeromotive, Airaid , American Racing , ARP , Auburn Gear,  AutoMeter Gauges , BBK Performance , B&M , Barry Grant Demon , Bell Tech , Be Cool , Bestop , BF Goodrich , Borla , Bully Dog , Cartech Books, Centerforce Clutches , Centerline Wheels , Comp Cams, Covercraft Car Covers , Cragar , Crane Cams , CTEK Battery Chargers , DEI Design Engineering , Demon Carbs , Diablosport , Driven Racing Oil, Dynomax Exhaust , E3 Spark Plugs , Edelbrock , EDGE Performance Electronics , EGR , Eibach Lowering Springs , Energy Suspension Polyeurethane , EDGE Evolution , Extang Tonneau Covers , Falken Tires , FAST Fuel Air Spark Technology , Fast Wheels FiTech EFI, Flex-A-Lite Fans , Flaming River , Flowmaster Exhaust , Ford Motorsport , FST Performance Fuel Filters , GM Performance , Mr. Gasket , Granatelli Motorsports , Hawk Performance , Hedman Hedders , HID Head Lights , Holley Performance Carburetors , Hurst Shifters , Husky Liners , Hushmat , Hypertech , InTune DIABLOSPORT , Interstate Batteries , JBA Performance Exhaust , KYB Shocks & Struts , K&N Performance Filters , Lakewood , Lumens HID & LED , Lokar , Magnaflow Exhaust , Made For You , Maxxis Moroso , Mr. Gasket , MSD Ignition , McGard Wheel Accessories , MSD Performance Ignition , Mickey Thompson Performance Wheels & Tires , Milodon , Mallory , Moroso , March Performance , Maxxim , Mothers Polishes & Waxes , Mechanix , Mickey Thompson Wheels & Tires, Nitrous , Nexen , NOS Nitrous Oxide Systems , Optima Batteries , Optima Red Top, Optima Yellow Top, Pacesetter Exhaust , Painless Wiring , Pertronix , Percy's , PIAA Bulbs , PIAA Fog Lights , Plastidip , Powermaster , Proform Parts , Putco , RCI Racer's Choice Inc , Richmond Gear , Remflex Exhaust Gaskets , Ruckus Rods , Royal Purple , Royal Purple Synthetic Oil , Russell Performance , SCT Performance , Sealed Power , SO-CAL Speed Shop , Spectre Performance , Speed Pro , Sprint Booster Power Convertor , SSBC, Stainless Steel Brakes , Suspension Techniques , Superchips , TCI Transmissions , Taylor Cable , Thrush Exhaust , TD Performance , TKO Performance , Toucan , Topline Wheel Accessories , Trinity Diablosport , Tuff Stuff Performance , Ultra Wheel , Ventshade , Vibrant Performance , VOXX , Weiand Performance , Weld Racing , Wheelskins , Walker Exhaust , Weather Tech , Westin , Yokohoma , VHT Paint and much more.
Vehicles & Parts, Vehicle Parts & Accessories, Motor Vehicle Care, Motor Vehicle Exterior, Motor Vehicle Interior, Car Seats, Motor Vehicle Parts, Vehicle Brake Parts, Motor Vehicle Engine Parts, Vehicle Carburetors, Vehicle Ignition Parts, Motor Vehicle Exhaust, Catalytic Converters, Exhaust Manifolds, Mufflers & Muffler Parts, Motor Vehicle Fuel Systems, Motor Vehicle Lighting, Motor Vehicle Rims & Wheels, Motor Vehicle Tires, Automotive Tires, Suspension Parts, Shock Absorbers, Motor Vehicle Safety Equipment


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