Performance
Tuning & bolt-ons
Stage 1 and 2 packages, flash tunes and full installs, dialed in on the dyno before the car goes back to you.
- Dyno tuning
- ECU tunes
- Downpipes
- Exhaust
- Intakes
- Chargepipes
- Intercoolers
- Turbo upgrades
- Fuel upgrades
12155 Magnolia Ave · Riverside, CA
Build it.
Fix it.
One shop.
Performance tuning on the dyno, collision repair with your insurance, maintenance, wrap, PPF and tint, all under one roof in Riverside.
Wrecked it? Start your insurance claim →
Insurance claims
Financing
Dyno-tuned
Warrantied work
BMW M2 · M3 · M4 · M5Toyota GR SupraPorscheAudi RSMercedes-AMGVW GTI · Golf RTrucks & dailies
BMW M2 · M3 · M4 · M5Toyota GR SupraPorscheAudi RSMercedes-AMGVW GTI · Golf RTrucks & dailies
What we do
Everything the build needs
From the oil change to a single-turbo conversion, and from a bent bumper to a full insurance repair. Don't see it listed? DM us and ask.
Service
Repair & maintenance
Keep a modified car reliable, or keep your daily and your truck running right.
- Oil service
- Brakes
- Diagnostics
- Plugs & coils
- Cooling system
- Pre-purchase inspection
Chassis
Suspension & wheels
Stance and handling set up for how you drive, street or track.
- Coilovers
- Lowering springs
- Wheels & tires
- Big brake kits
- Aero & carbon
Appearance
Wrap, PPF & tint
Protect the paint or change the look completely.
- Full & partial wraps
- Paint protection film
- Window tint
- Ceramic coating
- Detailing
- Chrome delete
Collision
Collision & body repair
Bumpers, panels and paint, in-house.
- Bumper & panel repair
- Paint & refinish
- Dent repair
- Scratch & scuff repair
- Carbon parts fitment
Insurance
Insurance claims
We work with your insurance company and handle the claim paperwork.
- Claim support
- Estimates for your adjuster
- Repair-to-upgrade options
Quick message
Build your message
Tap what you need and we'll write the message for you. Send it by text, or copy it into an Instagram DM. No forms, no accounts.
- Real quote with parts, labor and timeline
- Photos help: attach them after you send
- Insurance jobs: include your claim number if you have one
Wrecked it?
We handle the claim.
DM us photos of the damage and your insurance info. We write the estimate, work with your adjuster, and repair it here. Want carbon, a wrap or PPF while it's apart? We'll quote the upgrade at the same time.
- Send photosDM @psi.garage or text (949) 898-3110
- We work with your insurerEstimate and claim paperwork handled
- Repair, or repair and upgradeFixed, or fixed and upgraded
It's your choice. California law lets you choose the shop that repairs your car, even if your insurer suggests another.
Before
After
← Drag to compare →
The shop
Before / After
Same bay. Bare concrete to finished floor.
Why PSI
One shop instead of four
Most people bounce between a tuner, a body shop, a wrap shop and a mechanic. At PSI it's the same crew, the same bay and one conversation.
One crew, one conversationTuning, body, paint, wrap and service by the same team.
Insurance handledWe work with your insurer and handle the claim paperwork.
Financing optionsSpread the cost of a build or a repair. Ask when you get your quote.
Warranty on our workDyno-tuned builds and repairs we stand behind. Terms on your quote.
Built in-house
The PSI shop car
Our BMW M3: a single-turbo build with the headlight delete, carbon hood, roof, trunk and doors, and a deep red finish.
BMW M3Single turboHeadlight deleteCarbon hood · roof · trunk · doors
Recent work
From the bays
More builds on @psi.garage.
Community
Meets at the shop
We host car meets right here at 12155 Magnolia Ave. Bring your build, see what's on the lifts, and meet the crew who'll work on your car. Dates drop on Instagram first.
Questions
FAQ
Still unsure? DM us a photo of your car and what you want.
What's the fastest way to get a quote?
DM us on Instagram at @psi.garage with your car, mileage, current mods and what you want done. Photos help. You can also call or text (949) 898-3110.
Do you only work on BMWs?
No. We see a lot of BMW, Supra, Porsche, Audi and Mercedes-AMG, but we repair and build most performance cars, dailies and trucks. Ask us about yours.
Can I bring my own parts?
Usually, yes. Message us with the part and we'll confirm fitment and install pricing before you drop the car off.
Do you do regular maintenance, not just mods?
Yes. Oil service, brakes, diagnostics and general repair are a big part of what we do.
Do you work with insurance?
Yes. We handle collision repairs through your insurance: send photos of the damage and your claim info, and we'll write the estimate and work with your adjuster.
Do you offer financing?
Yes. Ask us about financing when you get your quote for a build or a repair.
Do you have a dyno? Is the work warrantied?
Yes to both. Tunes are dialed in on the dyno, and we warranty our work. Warranty terms are listed on your quote.
When is the next car meet?
We host meets at the shop and announce dates on Instagram first. Follow @psi.garage or DM us to get on the list.
Do I need an appointment?
Yes. Message or call first so we have a bay and parts ready for your car.
Ready to build it or fix it?
Send your plans or photos of the damage. We'll come back with a real quote.
Visit the shop
Pull in
12155 Magnolia Ave in Riverside, serving Riverside, Corona, Norco, Jurupa Valley and the rest of the Inland Empire. By appointment: DM or call before you come so we're ready for your car.
- Phone
- (949) 898-3110
- Text
- Send a text
- @psi.garage
- Address
- 12155 Magnolia Ave
Riverside, CA 92503 - Hours
- By appointment