Borla install and review.
#47
#49
Originally Posted by Jeff92se
Unless you use a nice transition piece, it won't be smooth. Do you have some type of data that suggests a 2.5" X and all the piping back at 2.5" would help performance and not hurt the low end?
#50
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You know, maybe for the older VQ this was true. But now that HR loves the 3 inch exhausts. Many 350z's with the HR are getting like 15 hp from an exhaust that was made for a FI car. Before and after dynos. Different brands of exhaust.
I didn't believe it at first, but people keep posting dynos lately of them, and after seeing a few, I am really surprised! Whatever Nissan did to the HR it likes Exhaust systems especially 3" over 2.5".
I didn't believe it at first, but people keep posting dynos lately of them, and after seeing a few, I am really surprised! Whatever Nissan did to the HR it likes Exhaust systems especially 3" over 2.5".
#51
#54
Russ if I had the choice, look to see if Amsoil or AEM has replacement oem filters for you. The Eu Amsoil looks to be a great filter. I've been meaning to try to match a cone for my Stillen.
BTW. I've been tracking my mpg with the navi. When I first did the exhaust the mileage went to *****. But after 3/4 tank, it's indicating 19.5 mpg or so. That's actually a tad better than before the exhaust. It certianly not worse. I'll chime in again with the mpg after the tank is done.
BTW. I've been tracking my mpg with the navi. When I first did the exhaust the mileage went to *****. But after 3/4 tank, it's indicating 19.5 mpg or so. That's actually a tad better than before the exhaust. It certianly not worse. I'll chime in again with the mpg after the tank is done.
#57