There are so many tuners, offers and a lot of competition. Few guys ask me who is the best tuner. That's a very tough question and it has no answer frankly. I always say
Choose the tuner based on the car which you are going to remap. I personally know many guys running with remaps from different tuners. Based on what I have seen / heard, I will list down few cars and who are good at it. This is just my personal opinion.
VAG Turbo Petrols :
Only 2 names come to my mind :
APR & Revo Technik. These 2 firms are well known globally and invest a lot on research and development. The cost would be little more, but worth it.
E Tuners motorsports : They are relatively new in India. The dealer is based out of Bangalore. E Tuners Motorsports have done couple of VAG builds. Their own Laura 1.8 TSI does 0-100 in 4.6 seconds (GTech logged). They have done IS38 build on new Octavia 1.8 tsi (again first in India).
Pete's : JBS / Custom Code maps - Custom Code is also a good VAG tuner. Pete's has done many VAG builds. They are known for good support all over the country.
VAG Diesel :
I have read good reviews about Tune O Tronics here. Many Bhpians are happy with their TOT tuned 1.5,1.6& 2.0 TDI.
Code 6 is also doing many VAG diesel cars. I know few friends and they are satisfied. Code 6 Tuned 1.5 TDI Polo was the quickest in recent drag event, Bangalore.
E Tuners Motorsports : They are new, but already showed their metal in recent drag event. Their Audi A6 was the fastest diesel car of the event.
Fiat cars & S-Cross 1.6
I would recommend Wolf Moto here. They are the best in country for Fiat cars. They are the only tuning firm in the world to crack processor of Fiat 1.3 MJD and 1.4 TJET ECU and develop switchable maps. They can also offer normal remap if the customer doesn't want switchable maps.
I am running with Wolf moto remap and extremely satisfied. We have 18 remapped 1.6 S-Cross in our group and 13 of them are by Wolf. Code 6 tuned S-Cross 1.6 is also very fast
Ford cars
I would suggest Code 6 here. They have remapped highest number of Ford Ecosport, New Figo / Aspire. They have good rapport with Ford service centres and the support is really good.
Other Indian Cars :
Choose the tuner after doing some research. If the tuner has already remapped few cars(the same car which you are looking to remap) and experienced, better to go with them. Tuning Firms like Quantum UK are good here. They have many dealers all over the world and their file writers will have experience on many cars.
Luxury cars :
I do not have much idea here. I will not experiment remaps here. I would be more than happy with plug and play tuning boxes here. May be after warranty period, would consider remap.
Some Points which many get it wrong :
1. Customer A : Tuner X has done very good remap on my Jetta : Suppose a customer B has S-Cross, he should not judge the tuner based only by the Jetta remap. That's where things go wrong. Always check if the tuner has remapped the same car and has got good reviews.
2. Dyno : Tuner B says our car has done 170 HP on dyno. What does that say in real? NOTHING! This is as good as not even doing a dyno run, it's only for marketing. Dyno figures make sense only if the tuner shows both stock and remapped graphs. We should see the percentage gains, not just the dyno graph of remapped car.
3. Pricing : Today, you can remap a car from 10k to 35k. There is nothing like low price remaps would be bad and high price remaps would be good. Pete's remap is just Rs 9500 now. Say for Polo GT TSI, Pete's V3 is the most powerful I have ever seen based on logging data.
End of the day, remap is not rocket science. The tuner can give good maps and support depending on how much he is ready to invest on tools and ECU definition files etc. Invest around 10 lakhs on tools & software, get some good tuned files for common Indian cars and anybody can be a tuner here

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