Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

2008 G35x Top Speed exhaust and next mod help

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Old Aug 26, 2018 | 08:46 PM
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2008 G35x Top Speed exhaust and next mod help

Hello all. I have searched for any information on this topic but was unable to find any clear suggestions. I have owned my G for 3 months and decided the Top Speed Pro-1 catback was the best bang for buck exhaust. I wanted to know if any of you have/had this exhaust because I want a mod that will compliment this system (a certain pipe or hfc). I know intakes don’t do much, if anything, for our cars, so I think that is out of the equation for now. I want to keep a deeper note of exhaust but volume isn’t a major concern. Just want some suggestions as to what to add next. Thank you!
 
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Old Aug 27, 2018 | 10:15 AM
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Top speed pro sounds like ***, stay stock or buy a NICE exhaust if you want it to highlight the good tones and not just drone always. Top speed exhaust is a DOWNGRADE from the stock system.

It's not bang for the buck. The invidia Gemini for sale here in the exhaust section is bang for the buck!

HFC or art pipes for mid pipe replacement. That's the best options. It's the most restrictive part of the exhaust.
 
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Old Aug 27, 2018 | 08:35 PM
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Urban he has an 08 X and IIRC the Top Speed for the second gen sedans is a million times better than the first gens. But OP he's spot on with the HFC/ART pipes suggestion. The cats are one of the most restrictive parts of the exhaust system and replacing them will free up more power and add a deeper/louder tone to the exhaust.
 
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Old Aug 30, 2018 | 09:46 AM
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Originally Posted by Blue Dream
Urban he has an 08 X and IIRC the Top Speed for the second gen sedans is a million times better than the first gens. But OP he's spot on with the HFC/ART pipes suggestion. The cats are one of the most restrictive parts of the exhaust system and replacing them will free up more power and add a deeper/louder tone to the exhaust.
Shoot sorry it was just in the G35 section. Why did Infiniti have to lie to everyone and say it was a G35 when it really was a G37 w 3.5...
 
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Old Aug 30, 2018 | 07:48 PM
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The 07-08 sedans were still named G35 and had a 3.5 but it is an HR motor, not a DE. For the 09 G37 they upped it to the 3.7 VVEL with HP rated at 328. In reviews it averaged right at a 5 second 0-60 which is pretty damn quick for a 9 year old sedan.
 

Last edited by Blue Dream; Aug 30, 2018 at 07:52 PM.
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