So, I have a 2007 sedan with the newer HR engine. A local shop said that by upgrading to short ram intake and Stillen or Borla exhaust, I will get 20+ more hp. But, because the 2007 already has a pretty good dual ram air and improved exhaust (over DE engine in earlier models), will I really see that much improvement? I’ve found similar threads, but none specifically addressing the difference between how similar upgrades affect the DE vs. HR engines. I get the impression most advertising claims refer to gains for the older, DE package.

If I have VQ35HR in my 2007, do I have V36 (I've been assuming so)
Can anyone direct me to a thread?

 

bs. stock induction is really, really good.

 

"If I have VQ35HR in my 2007, do I have V36"

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G35/37 Sedan V36 2007+

 

You'd be lucky to get 10 whp w/ a good intake and a catback.
And YES u do have a V36 sedan.

 

Also keep in mind that gains from each upgrade are not additive. For example, a 9 WHp gain from an exhaust + a 9 WHp gain from an intake does NOT mean you will get 18 WHp combined.

That said, 20+ WHp from an intake and exhaust would pretty tough to achieve.

 

shops always say that to convince u to buy the parts