what is tthe advantage of dual exhaust and its cost?

Asked by Jun 01, 2015 at 03:31 PM about the 2015 GMC Terrain SLT2

Question type: General

Dual exhaust is being offered as feature on the GMC terrain.

1 Answer

7,735

Dual exhaust only has advantages for V8 engines or high output V6 engines, To get the best performance from a dual exhaust you would also need to increase the air intake as well, the two combined increases the efficiency and the horse power of the engine but the ecm will have to be tuned to accommodate the physical changes in the system. So it could get a little pricey.

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