marroquin38

Where are you all purchasing your tunes from?

rory breaker

Why do you say "guaranteed safe" versus other tunes?

Leon Bacon

Ok, I'm both glad for you and jealous that you are running strong out of the gate. I started with a K-1 tune, had issues and unremarkable gains (seat of the pants, no dyno). Went for the K-2 with short tube headers, big problems with ECU and car in limp mode. After weeks of visits, Kleeman and FunKtion Auto (DC area) diagnosed the problem, re-flashed the ECU and now car running great. All said and done, worth the money and the pain. Finally, car wouldn't run a week ago with flashing ECU, towed to the dealer, they replaced valve cam solenoid (right exhaust) under warranty despite seeing the headers and suspecting a tune, back to running great. Great support from Kleeman, Walid at FunKtion Auto and American Service Center in Arlington, VA. Now flying CAP in search of GT500s.

BerBer63

Kleemann doesn't try to squeeze every hp out of your engine. Its been proven that they provide conservative tunes that don't stretch the limit of your car (and they admit to that too in previous threads that they might leave some power on the table at the price of added safety, longevity, reliability). plus there track record proves that across different models.

Even Money

Nothing is "guaranteed" safe. And what track records??

C63newdude

I like your history though I think is absurd to read that your dealer changed your exhaust even though they identified that you were running headers..that along is stupid on their end. Your exhaust warranty should had been avoid right there and then.

Sincity

I based my K2 purchase on your review.

Sincity

They didn't replace the exhaust. They replaced a solenoid.

Leon Bacon

Correct, solenoid. Also I wonder if the fact that I bought my last two cars new from them (C55 & C63) had any impact.