Dyno & Performance Tuning
Your vehicle's engine control unit (ECU) leaves significant performance on the table with its factory settings. As the premier performance shop in Montgomeryville, R/T Tuning specializes in professional COBB Tuning and EcuTek tuning to safely optimize your car's power, drivability, and response. We provide custom, data-driven tunes developed on our in-house dyno for clients throughout the Philadelphia area.
The premier tuning & automotive service shop in Montgomery County.
From vehicle diagnostics, oil changes and scheduled maintenance to ECU calibration, fabrication and dyno-proven big-power builds — R/T Tuning covers cars and trucks with over 25 years of expertise, all under one roof in Montgomeryville, PA.
Learn More About R/T →One Shop.
Every Job Done Right.
From an oil change on your daily to a big-turbo build on your track car — cars and trucks, one standard of work. Tap any service to see what's involved.
Baseline pulls, staged upgrades and custom ProTunes on our in-ground Mustang AWD dynamometer. Every session ends with printed before/after graphs and a walkthrough of your results — verified numbers, not estimates.
- Custom ECU calibration & flex-fuel setups
- AFR, boost & knock datalogging
- Before / after graphs on every pull
From $150
Dyno baseline — three back-to-back pulls with printed graphs.
Turbo kits, intakes, exhausts, intercoolers, fueling and suspension — installed by the same techs who tune them. We stand behind the whole package because we built it.
- Turbo & supercharger installs
- Intake, exhaust & intercooler upgrades
- Fueling, clutch & drivetrain work
Check-engine light, rough idle, mystery noise or a car that won't pass inspection — we diagnose it properly with factory-level scan tools instead of guessing at parts.
- Full diagnostic scans & DTC troubleshooting
- Engine, drivetrain & electrical repair
- Pre-purchase inspections
Daily drivers welcome. The same techs who build 1,000-hp machines handle the routine work — full synthetic services, brakes, fluids and scheduled maintenance on cars and trucks.
- Full synthetic oil & filter service
- Brakes, fluids & multi-point inspection
- Factory-interval scheduled maintenance
From $89
Oil & filter service including a multi-point inspection.
Half-tons to heavy duty — lift and leveling kits, wheels and tires, tow-tuning and diesel work. Whether it's a work truck or a weekend hauler, it gets the same standard of work.
- Lift, leveling & suspension packages
- Wheels, tires & alignment
- Tow tuning & diesel performance
When the part you need doesn't exist, we make it. Custom charge piping, exhaust, mounts and brackets fabricated in-house and fitted to your build.
- Custom charge piping & intercooler plumbing
- One-off exhaust & downpipes
- Mounts, brackets & chassis work
Every Claim We Make Is Backed By A Graph.
Baseline pulls, staged upgrades and custom ProTunes on our in-ground Mustang AWD dyno — printed before/after numbers on every session. And the same techs who build 1,000-hp machines handle your oil change, too.
Our Most Popular
Tuning Platforms
Factory-authorized. Fully supported. Tuned in-house on our dyno.
COBB
The Accessport is the world's best-selling ECU upgrade solution. Follow the staged upgrade path with pre-loaded Off The Shelf maps — or let us build a custom ProTune for any modification level.
Authorized ProTuner // Flex Fuel // Stage Packages Explore COBB Tuning →
APR
Montgomery and Bucks County's ONLY authorized APR dealer. Software and hardware engineered for VW and Audi — installed and verified on our dyno.
Exclusive Regional Dealer Explore APR Tuning →
EcuTek
Vehicle tuning technology for Japanese platforms — from daily-driver refinement to full race calibrations, tuned in-house by our EcuTek master tuners.
Master Tuner Explore EcuTek Tuning →
Unitronic
Quality, performance and reliability — Unitronic software and hardware for the VW/Audi family, backed by R/T install and dyno verification.
Authorized Dealer Explore Unitronic →
Hondata
Honda tuning, evolved. FlashPro calibration for K-series and turbo Hondas — street manners with track-day power, proven on the rollers.
Authorized Dealer Explore Hondata →
Eurocharged
ECU performance tuning and remapping for Mercedes-Benz, AMG and European exotics — more power, sharper response, no drama.
Authorized Dealer Explore Eurocharged →
Frequently Asked Questions
What is the difference between an Off-The-Shelf (OTS) map and a custom ProTune?
An Off-The-Shelf (OTS) map is a pre-packaged, standardized file designed to work reasonably well on thousands of different cars with basic bolt-ons. A custom ProTune is built specifically for your exact vehicle on our AWD Mustang dyno. We fine-tune ignition timing, fueling, and boost control to match your specific engine health, regional fuel quality, and unique combination of aftermarket parts.
What specialized dyno testing and alignment equipment does R/T Tuning utilize on-site?
Automotive tuning requires specialized state-of-the-art diagnostic machinery. The R/T Tuning facility features both a Mustang AWD Dyno and a Dynojet 2WD Dyno, enabling accurate wheel-horsepower measurements and real-time engine calibration across diverse drivetrain layouts. Furthermore, the shop grounds its suspension precision on professional alignments, corner balancing equipment, and Advanced Driver Assistance Systems (ADAS) calibration to ensure high-performance vehicles handle safely on and off the track.
Which vehicle platforms and tuning systems are R/T Tuning certified to support?
R/T Tuning has established technical mastery across leading performance brands, specifically offering specialized parts and services for Audi, BMW, Honda, Infiniti, Nissan, Porsche, Subaru, Toyota, and Volkswagen vehicles. Our practical tuning capabilities span industry-standard engine management platforms, including APR, COBB Tuning, ECUTEK, Eurocharged, Hondata, Stand Alone ECUs, Unitronic, and UPRev. Vehicles serviced range from daily maintenance and installation projects to full custom engine building and standalone ECU wiring.
Why Choose R/T Tuning for Performance Tuning?
Generic, off-the-shelf tunes can’t account for your specific modifications, fuel quality, or local conditions. We build custom calibrations customized to your exact setup to maximize performance while keeping your engine safe and durable.
Precision Dyno Testing
Using our state-of-the-art AWD Mustang dyno or 2WD Dynojet, we perform precise dyno tuning in Bucks County and surrounding areas. We measure real-world output and fine-tune ignition timing, fuel maps, and boost pressure with real data.
Stock Turbocharged Vehicles
A quality 93-octane calibration typically adds 30 to 60 wheel horsepower and matching torque gains, mostly in the usable midrange.
Naturally Aspirated Engines
Platforms like the BRZ, GR86, 350z, 370z, G35, and G37 generally gain 10 to 20 wheel horsepower, along with significantly sharper throttle response.
Upgraded Hardware
Vehicles with intakes, downpipes, intercoolers, or larger turbos can see triple-digit horsepower gains.
Every tune is validated through logging and dyno analysis, and we back our work with before-and-after dyno graphs so you see exact proof of your gains.
Certified COBB ProTuner Services
As an authorized COBB ProTuner, we use the COBB Accessport to build custom calibrations that go far beyond standard off-the-shelf (OTS) maps. While preloaded Stage 1, 2, and 3 OTS maps offer a safe baseline for stock hardware, they are averaged across thousands of vehicles. Our custom dyno tuning dials in your specific car to extract maximum output safely.
Whether you’re running a complete COBB Power Package or a mix of aftermarket bolt-ons, we install and calibrate all supporting hardware, including intakes, intercoolers, downpipes, exhausts, and fuel pumps. We regularly tune popular platforms like the WRX, STI, VW Golf R, Mustang EcoBoost, F-150 Raptors, and GT-R creating a fully integrated setup that turns generic parts into real-world performance.
Our COBB Accessport Tuning Process
We start with a thorough consultation and inspection, followed by baseline dyno pulls to create and refine your custom map.
Installation & Hardware
The Accessport plugs directly into your OBD-II port, saving your factory file and marrying to your vehicle. The initial flash takes 10 to 20 minutes on a battery maintainer. You can mount the unit on your dash, vent, or windshield, or unmarry it at any time to return the ECU back to stock.
Real-Time Monitoring & Ongoing Support
On the road, the Accessport acts as a digital gauge cluster and logger, monitoring boost, air/fuel ratios, timing, and knock while reading or clearing CELs. After a few hundred miles of driving, we review your datalogs and email a revised map if any fine-tuning is needed.
A Note on Warranty
Flashing your ECU can affect your powertrain warranty. Reverting to stock resets the tune, but dealers can still see flash history. Under the Magnuson-Moss Act, a dealer must prove a modification caused a failure to deny coverage, but tuning an under-warranty vehicle always carries some risk.
EcuTek Master Tuner for Subaru, Toyota & Nissan
R/T Tuning is also your trusted specialist for EcuTek tuning in Montgomeryville. EcuTek provides advanced tuning capabilities, particularly for Japanese and European platforms, offering unique features through its RaceROM software. This allows for custom maps and features not available on other platforms.
Our dyno-proven process maximizes these capabilities on high-demand platforms like the Subaru BRZ, Toyota Supra, Nissan and Infiniti VR30, VR38 and VQ37 engines. We dial in custom launch control, flat-foot shifting, and multi-map switching to make sure that your exact setup performs flawlessly on both the street and the track.
Platforms We Specialize In
With decades focused on high-performance vehicles, we are a leading Audi, Volkswagen, and Subaru tuning shop in Bucks County. We provide custom dyno tunes for a wide range of platforms:
Subaru
WRX, STI, BRZ,
Volkswagen
MK7 GTI, Golf R, Mk8 GTI, Mk8 Golf R
Audi
S3, S4, RS3, and more
BMW
M2, M3, M4, 335i, and other turbo models
Porsche
911, Cayman, Boxster
Nissan
GT-R, 350Z, 370Z
Toyota/Scion
Supra MKV, GR86, FRS
Fitment varies strictly by model year, market, transmission, and ECU encryption. Send us your year, model, trim, transmission, and VIN before ordering so we can confirm exact hardware compatibility and map support.
Schedule Your Dyno Tune at R/T Tuning
Take your vehicle’s performance to the next level. Contact R/T Tuning to discuss your goals and schedule a tuning consultation at our performance shop in Montgomeryville to get a custom calibration built specifically for your car.
R/T Tuning News
Another new Shop Car at R/T! The 2022 Subaru WRX project begins!
→ 03 Sep 26 UncategorizedThe Latest addition to our fleet of shop cars, The New 2023 Nissan Z.
→ 03 Sep 26 UncategorizedSSR GTX01 installed on a Smokey Mauve Pearl 11th Gen Honda Civic
→ 03 Sep 26 UncategorizedCobb Redline intake for the 2015-2021 Subaru WRX FA20DIT (742100) INSTALLED!
→Precision Tuning. Serious Performance.
Open Monday - Friday: 8:00am - 5:30 pm at 110 Commerce Drive, Montgomeryville. Call 215-855-5565, or book your appointment online.