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Wrong forum first off. This forum is directed towards 1M engine tuning, same engine but different forums. There is a 135 engine forum a little further down.
Most will tell you to spend your money else where, especially if you have an 08 that is likely out of warranty at this point. Dinan's advantage is warranty if you still have the factory warranty. Thats it, and some have reported issues with their Dinan tunes. For 5k you can get 400whp with another tuner + catless downpipe, exhaust, fmic and maybe meth injection. If you want to go Dinan you may get 330whp...maybe.
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