Reviewed By thomas t (MCCOMB, MS) Reviewed for a 2009 Dodge Challenger —12/14/2016 8:31 AM
A little low end pep havent seen any mpg differences yet. Worth it for the pep.
Reviewed By Andrew B (Indianapolis, IN) Reviewed for a 2009 Dodge Challenger —3/29/2012 3:43 PM
I have a 2009 srt8 challenger and this spacer made my fuel mileage go up substantially. i was averaging 11mpg - 15mpg in the city and now i get 15mpg - 20mpg and thats driving moderatley. however, highway mileage only went up 1mpg so that wasnt impressive. i also enjoy the whistle it makes. overall i would definitly recommend this product.