HKS Centre Pipe Installed

alexpila · 02-08-2010, 02:10 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

m4a1mustang · 02-08-2010, 02:12 PM

Quote:

Originally Posted by alexpila

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

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, 02:14 PM

Quote:

Originally Posted by NYBladeZ

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.

alexpila · 02-08-2010, 02:20 PM

Quote:

Originally Posted by m4a1mustang

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, 02:21 PM

Quote:

Originally Posted by alexpila

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, 10:55 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?

02-08-2010, 02:10 PM	#16 (permalink)
alexpila Base Member Join Date: Sep 2009 Location: Johannesburg Posts: 178 Drives: 09 370z AT Touring Rep Power: 16	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 __________________ 09 7AT Touring 370z, Pearl White, Evo-R Carbon Fang Cover, Carbon Top Cover, HKS Centre Pipe, Illuminated Kickplates, Custom Sprayed stock RAYS

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12-14-2013, 10:55 PM	#21 (permalink)
oedwards Base Member Join Date: Dec 2013 Location: Long Island, NY Posts: 39 Drives: 2009 Fairlady Z34 Rep Power: 12	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?