Nissan 370Z Forum - Headers or Test pipes or both with stock exhaust?

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

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

- - Headers or Test pipes or both with stock exhaust? (http://www.the370z.com/intake-exhaust/83256-headers-test-pipes-both-stock-exhaust.html)

After_Shock

12-15-2013 01:02 AM

Quote:

Originally Posted by Chuy (Post 2609681)

I run K&N drop in, I did not notice a change in anything. I later bought HPS silicone tubes and still no difference.

As I thought as the stock design does look good, I may drop in higher flowing panels at some point but the amount of sand where I live it might be best to stick with the stock ones!!

After_Shock

12-15-2013 01:05 AM

Quote:

Originally Posted by andre12031948 (Post 2609691)

test pipes or after market headers when driven on the street make the cars sound like chit. Raspy, crappy, chit!!!! So I don't get it :confused:

If you're looking just to sound loud then take the muffler off.

How can it make it sound like crap when its still connected to the stock exhaust with stock mufflers in?

I dont want to change the stock exhaust as I may have issues getting the car through its yearly test here, however a touch more noise would be nice and also freeing up a little bit of power would also be good.

After_Shock

12-15-2013 01:06 AM

Quote:

Originally Posted by tranceformer (Post 2609723)

I have the following setup:

Fast Intentions longtube headers
Motordyne XYZ-pipe, w/ cat

exhaust is stock other than those parts. yes, it's not the most ideal setup for all-out HP.

just cruising around, light throttle and low rpm my exhaust is just a hair louder than stock. just enough to let you know it's not stock.

once you put your foot into the pedal it comes alive, but not super loud that any cop within a mile will hear you coming.

I'll have to break out the gopro one of these nights...

If you do get a chance to make a vid it would be interesting to hear!

andre12031948

12-15-2013 02:55 AM

my mistake

Quote:

Originally Posted by After_Shock (Post 2609920)

I meant to say if you REPLACE your CATS with test tubes or headers that eliminate cats, it will sound raspy & crappy.

That's what happened to me. After changing my cats with test pipes I almost asked my installer to switch back. He told me, you'll get used to it:)
"RASPY"

I would recommend listening to them online if not possible in person.

After_Shock

12-15-2013 03:05 AM

Quote:

Originally Posted by andre12031948 (Post 2609984)

Dont suppose you got a video of yours when you had them on did you?

What did you change to?

critical

12-15-2013 06:42 AM

You'll blow your stock exhaust with test pipes. Better to get both

After_Shock

12-15-2013 06:46 AM

Quote:

Originally Posted by critical (Post 2610016)

You'll blow your stock exhaust with test pipes. Better to get both

Could you expand on that a little?

andre12031948

12-15-2013 12:45 PM

Quote:

Originally Posted by critical (Post 2610016)

You'll blow your stock exhaust with test pipes. Better to get both

I didn't blow anything or anyone :icon14:

luigi90210

12-15-2013 01:02 PM

Lmao critical.

He is right, you should get a new exhaust.

critical

12-15-2013 03:07 PM

Quote:

Originally Posted by After_Shock (Post 2610017)

Could you expand on that a little?

two of my mufflers went bad and started rattling.

Quote:

Originally Posted by andre12031948 (Post 2610290)

I didn't blow anything or anyone :icon14:

you didn't blow anyone...ok whatever you say.

luigi90210

12-15-2013 03:20 PM

Quote:

Originally Posted by critical (Post 2610422)

two of my mufflers went bad and started rattling.

you didn't blow anyone...ok whatever you say.

was that because of your test pipes?

critical

12-15-2013 03:29 PM

Quote:

Originally Posted by luigi90210 (Post 2610438)

was that because of your test pipes?

i suspect so

andre12031948

12-15-2013 03:39 PM

between posting here on 370z.com & my strip club adventures

I should recover from my head trauma by early spring.

Thanks for your participation that is so crucial & helpful to me. :icon14:

Megan370z

12-15-2013 03:40 PM

Quote:

Originally Posted by critical (Post 2610422)

two of my mufflers went bad and started rattling.

I also confirm this statement.

My first one didn't last the weekend at the race school.
the second one that I got a year ago which was almost brand new, didn't last very long doing some street tuning. It was not as bad as the first one but its starting...
this was done with shorty headers and TP on the first one and the second one was using the PPE header.

I suspect the internal of the stock muffler cannot handle the increased flow/heat and has a very good chance to start rattling

luigi90210

12-15-2013 04:10 PM

Quote:

Originally Posted by Megan370z (Post 2610473)

I suspect the internal of the stock muffler cannot handle the increased flow/heat and has a very good chance to start rattling

while im not doubting the stock muffler blowing

test pipes make your exhaust run cooler since there is no cat, cats heat up the exhaust since they need to run at 600F+ in order to work

i think it cant handle the extra flow if anything

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