Custom ECU Tuning
Stage 1, Stage 2, and Stage 2+ custom maps for 93, E30, and flex setups. Built around your mods, not an off-the-shelf guess.
📍 CT Based • BMW Tuning & Coding
Custom tunes.
Custom tunes.
Real sound.
Real results.
Heinz Auto LLC does BMW coding and tuning first — custom maps, 2-step, antilag, FEMTO unlocks and transmission tunes — plus general maintenance, tinting, and car key making.
★ 5.0 on Googlereviews
Since 2024Heinz Auto LLC
MHD & BM3Tuning platforms
Credit / FinanceAccepted
Auto tune up service • Connecticut based • Call (860) 877-7376
Follow the builds & hear the cars:
instagram.com/heinzautollc
Services — tuning first
Start with the order form below and tell us your car, fuel, and mods. No guessing — every tune is built for your setup.
2-Step & Antilag
2-step launch control (set your RPM in the order form) and antilag patches added to your file. The stuff you hear in our reels.
Transmission Tunes
Custom trans tunes for faster, cleaner shifts and a way better driving feel than stock or OTS.
FEMTO Unlock
FEMTO unlock and full tuning for locked ECUs, including newer Supra and BMW models.
Coding
BMW coding and feature unlocks — done right, with your options confirmed before we start.
Maintenance, Tint & Keys
General maintenance, window tinting, and car key making. Ask in the contact form for availability.
Built from your stock file
You send your stock file, we build the tuned file for your exact car, fuel, and mods, and send it back ready to flash with MHD or BM3. If a patch like 2-step or antilag needs our partner, we track it and keep you updated — no file gets lost in DMs.
How it works
Three steps. Most customers start right here.
01
Fill out the order form
Tell us your car, engine, fuel, mods, platform (MHD / BM3), and what you want — tune, 2-step, antilag, trans tune, or a combo.
02
Send your stock file
Send your stock file by DM or email after you submit. Tell us if anything on the car changed since the file was read.
03
Get your tuned file back
We send the tuned file back ready to flash. Flash it, log it, and let us know how it feels — we want your feedback.
Order a tune / contact us
Fill this out and hit submit — it goes straight to our email at anthony@heinzauto.com. You can also DM us on Instagram if you prefer.
Reviews & results
Rated 5.0 on Google. Real customer cars and clips also live on Instagram — that's where the sound is.
Google Reviews • Auto Tune Up Service
★★★★★
5.0 / 5 on Google
Read & leave a review on Google
Worked with Heinz Auto? Your Google review helps other BMW owners in CT find us. Tap below to read reviews or leave yours.
Opens Heinz Auto LLC's Google reviews page • Connecticut based, no street address listed on Google
On Instagram Now
Hear it for yourself
2-step launches, antilag clips, and customer cars are posted on @heinzautollc. If we tuned your car, tag us in your clip and leave your feedback there — it helps the next customer trust the process.
★★★★★
alec bachar
“Awesome company! Had them tune a hard cut anti-lag on my N54 335i and it sounds amazing! They were able to keep all OTS functions through MHD but tweak the anti-lag which is exactly what I was looking for. Super quick and easy process. Definitely recommend!”
★★★★★
Austin
“I had a great experience with Heinz Auto LLC. They really know BMWs and were professional, honest, and easy to work with from start to finish.”
★★★★★
Alex Bialko
“I brought my Mercedes-Benz in after having ongoing issues with the ECU, and I couldn't be more impressed with the service I received. They diagnosed the issue quickly and explained everything clearly, which I really appreciated.”
★★★★★
Rithik Shah
“Excellent service. Replaced my spark plugs and coils, and my car is running great. Honest, knowledgeable, and professional.”
★★★★★
Julian Marynowski
“Customer service is amazing, and the package deals are great for what you get. Coded me in rolls royce chimes for my M3 and Anthony did a stage 2+ tune on my M3 and it is awesome!! Highly recommended to all who want to get work done to their car!”
Google Reviews
See all reviews
These are exact short quotes from real Google reviews for Heinz Auto LLC. Read the full reviews on Google.
Customer cars & clips
Real customer cars, flames and antilag — the clips play one after another, like a loop. Tap the sound button to hear them.
BMW antilag flame at night
Antilag flame, parking lot pull
Supra in for work
Night flame clip
Customer clip 1 — 2-step / antilag
On Instagram Now
More clips on @heinzautollc
New customer clips go up on Instagram first.
Merch store — coming soon
Heinz Auto gear is in the works. Join the list and you'll be first to know when it drops — no spam, just the launch.
Coming SoonHoodies & Tees
Black Heinz Auto staples with the triangle logo.
Hats & Sticker Packs
Caps, slap stickers, and small gear for your car and laptop.