Euro · JDM · American

Built Better
Driven Further.

Engine swaps. Turbo installs. Full maintenance. From your daily to your track car — no matter the platform, we handle it all.

BMW • Audi • Volkswagen • Porsche • Mercedes • Honda • Acura • Toyota • Lexus • Nissan • Infiniti • Ford • Chevrolet • Dodge • GMC • BMW • Audi • Volkswagen • Porsche • Mercedes • Honda • Acura • Toyota • Lexus • Nissan • Infiniti • Ford • Chevrolet • Dodge • GMC •
BMW Mercedes-Benz Audi Porsche Volkswagen

We know these platforms inside and out.

Nissan Toyota Honda Subaru Mitsubishi

Built for performance from the factory, perfected by us.

Ford Chevrolet Dodge GMC Jeep

Big power, big personality, built right.

Services

01

Routine Maintenance +

Oil changes, brake jobs, cooling systems, fluid flushes — keep your car dialed in regardless of make.

  • Full synthetic oil change & filter
  • Brake pad & rotor replacement
  • Cooling system overhaul (water pump, thermostat, hoses)
  • Transmission & differential fluid service
  • Spark plugs & ignition coils
  • Serpentine belt & tensioner
  • Multi-point inspection included with every service
02

Engine Swaps +

Full engine pulls and swaps — 2JZ, LS, RB26, B58, Coyote. Whatever the vision, we make it happen.

  • Complete engine removal & installation
  • Wiring harness adaptation & integration
  • Custom motor mounts & fabrication
  • ECU tuning & coding for swapped motors
  • Drivetrain & transmission matching
  • Cooling & oil system upgrades for new platform
  • Popular swaps: 2JZ, LS, RB26, K-series, B58, Coyote
03

Turbo & Forced Induction +

Single turbo builds, twin setups, supercharger kits, supporting mods, and tuning support.

  • Single turbo kit installation & routing
  • Upgraded twin turbo setups
  • Supercharger kit installation
  • Supporting mods: fuel pump, injectors, FMIC
  • Custom downpipes & exhaust fabrication
  • Oil feed & return line routing
  • Boost leak testing & validation
  • Tuning support (standalone, piggyback, flash)
04

Performance Upgrades +

Downpipes, intakes, intercoolers, exhaust, cams, headers — bolt-ons to full-send power packages.

  • Catless / high-flow catted downpipes
  • Cold air intakes & charge pipes
  • Front-mount intercooler upgrades
  • Full turbo-back or cat-back exhaust systems
  • Headers & long-tube headers
  • Camshaft upgrades & valvetrain work
  • Stage 1, Stage 2, Stage 2+ packages
05

Suspension & Handling +

Coilovers, bushings, sway bars, alignment — corner balance to track-ready setups.

  • Coilover installation & adjustment
  • Lowering springs & strut combos
  • Control arm & bushing refresh
  • Sway bars & end links
  • Camber plates & adjustable arms
  • Corner balancing & alignment
  • Brands: KW, BC Racing, Bilstein, Tein, Fortune Auto
06

Electrical & Diagnostics +

Honest diagnostics, wiring repair, module coding — no guesswork, just answers.

  • Full diagnostic scan & report
  • Fault code reading & root cause analysis
  • Wiring repair & harness fabrication
  • Module coding & feature activation
  • ECU flashing & tune installation
  • Standalone ECU wiring & setup
  • Pre-purchase inspection diagnostics
07

Drivetrain & Transmission +

Clutch kits, differentials, driveshafts, trans rebuilds — keeping power to the wheels.

  • Clutch kit & flywheel replacement
  • Differential rebuild & upgrade
  • Transmission rebuild & swap
  • Driveshaft & axle replacement
  • Limited-slip differential installs
  • Short shifter & linkage upgrades
  • Manual swap conversions
08

Towing & Transport +

Flatbed towing for your car — whether it's a breakdown, a pickup, or getting your build to our shop.

  • Flatbed towing (lowered & modified cars welcome)
  • Local & long-distance transport
  • Breakdown recovery & roadside pickup
  • Event & track day car transport
  • Project car pickup from sellers
  • Safe loading for wide-body & slammed builds
  • Serving the Inland Empire & surrounding areas

Recent Builds

2011 BMW 335is 1 of 49

2011 BMW 335is — 1 of 49

Doc Race Single Turbo Kit · ReFlex+ · Tuned by @CD919_ · Factory DCT

Owner: Christian
2008 BMW 335i E90 DCT Swap - Blake

2008 BMW 335i E90 — DCT Swap

Doc Race Single Turbo Kit · ReFlex Lite · Tuned by @CD919_ · DCT Swapped · Titanium Silver

Owner: Blake
2008 BMW 335i Upgraded Twins DCT Swap

2008 BMW 335i — DCT Swap

Upgraded Twin Turbos · DCT Swapped · E85 Tuned

Photo

N54 Single Turbo E92

Full turbo kit + supporting mods

Our Story

A group of friends who live and breathe cars.

Based out of Hemet, California, we're a team of enthusiasts who all come from different backgrounds, different experiences, and different walks of life. Some of us were born and raised here in the valley, while others found their way here over the years. The one thing we all had in common? A passion for cars.

Ironically, we all ended up building some pretty wild BMWs along the way.

What started as working on our own vehicles in driveways and garages quickly turned into helping friends, then friends of friends, and eventually building a reputation throughout the Inland Empire. We saw too many shops cutting corners, rushing repairs, and charging customers without delivering quality work. So we decided to do things differently.

At Built Better Performance, every vehicle is treated like it's our own. Whether it's a European, JDM, or American platform, we take pride in providing honest diagnostics, quality repairs, and attention to detail that you can trust.

From routine maintenance and electrical diagnostics to engine swaps, drivetrain work, and performance upgrades — we've worked on just about everything. No matter what you drive, our goal is simple: do the job right the first time and keep our local car community moving forward.

Built in the Inland Empire. Driven by passion. Built Better.

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