Heffners Performance stock internal twin turbo R8 V10 5.2 dyno run, just under 700 awhp - Tuned by EPL
Here is the first graph we have seen of a stock internal Heffners twin turbo R8 5.2. EPL (European Performance Labs) tuned the car as Heffners Performance was not able to crack the stock ECU. The high 600's on stock internals is a bit underwhelming although that curve is gorgeous. Considering where Gallardo's are with twin turbo setups the R8 5.2 V10 is lagging a bit behind due to the difficulty in tuning them it seems. We hope to see built motor numbers soon.