Nissan 370Z Forum - HKS Centre Pipe Installed

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Nissan 370Z Forum (http://www.the370z.com/)

- Intake/Exhaust (http://www.the370z.com/intake-exhaust/)

- - HKS Centre Pipe Installed (http://www.the370z.com/intake-exhaust/14085-hks-centre-pipe-installed.html)

alexpila

02-08-2010 01:10 PM

And i found they are much much loader when the cats are cold so i might go for a decat to keep the sound as i like it :driving:

m4a1mustang

02-08-2010 01:12 PM

Quote:

Originally Posted by alexpila (Post 393004)

And i found they are much much loader when the cats are cold so i might go for a decat to keep the sound as i like it :driving:

The reason the car is louder when it's cold is because the ECU is bumping up the idle RPM by a good bit to help get the fluids pumping and warmed up quickly.

m4a1mustang

02-08-2010 01:14 PM

Quote:

Originally Posted by NYBladeZ (Post 389924)

Did you by any chance measure the diameter of the HKS piping? 370ztune says it is 60.5mm which is less than 2.5in I wanted to know if it is less than or equal to 2.5

Blade, I think your GTHaus rear would sound sick with the HKS components.

The H-pipe is going to keep some depth... the **** will sound f***ing ridiculous man. :icon18:

alexpila

02-08-2010 01:20 PM

Quote:

Originally Posted by m4a1mustang (Post 393006)

The reason the car is louder when it's cold is because the ECU is bumping up the idle RPM by a good bit to help get the fluids pumping and warmed up quickly.

I know it does that but wen you drive off it sounds much louder through acceleration as it used to have a rasp when cold as the cats got warm the noise decreases significantly...

m4a1mustang

02-08-2010 01:21 PM

Quote:

Originally Posted by alexpila (Post 393017)

I know it does that but wen you drive off it sounds much louder through acceleration as it used to have a rasp when cold as the cats got warm the noise decreases significantly...

Ah, gotcha. Thought you were just referring to the startup volume.

oedwards

12-14-2013 09:55 PM

Hey Alexpila I think you may be able to help me bro. I recently damaged a portion of my HKS hipower exhaust over a terribly built speed bump about a month ago. Ive been so aggravated. I damaged the top h-pipe section of the exhaust with the bilateral flex pipes. I DESPERATELY WANT TO REPLACE THAT PORTION OF THE EXHAUST WITH A NEW FRESH PIECE AS SOON AS I CAN. Is that the same piece you replaced and if so where can i can I get that dude?

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