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Congrats man! Glad to see you gained some HP's! Now If someone with a Stcok G35 or G37 could do a dyno like you did. And then we can really know for sure If the Injen is really all Hype or BS. I just installed my Injen today. And the Washer Resovoir was a PITA!! Other than that it was good. For me my G35 Sedan seems to pull alot harder after like 4000RPM's than the Stillens I had on! I wonder?? LOL
So you didnt feel any low end loss ???? Thats great !!!! Where did you buy these???
If you are asking me this then no low end loss. I gained in the low end from what I can definitely feel and it shows in the dyno (sort of). I bought this from Andy at HPAuto. Here is the link. Read through it for the contact info on the sale.