DraGonAlchemist

I'm doing an alignment on a g35 with rims installing camber kits n what not. .and i noticed he has a Borla TD like me but when pulling it in and revving it up a tad i hear that there was no hiss like mine. .so then i looked underneath after getting it on the lift. .and noticed where the H pipe was he had it clamped tightly and had the big hose clamps pulling the H pipe together. .now why didn't i think of that. . so after im done with his adjustments. .im going to throw up my Z and see if that fixes my hiss. .and i'll repost to let you know. .

BTW. .guy has a huge Bend in the inner lip of front right rim!! DAMN!

iceagetlc

iTrader: (10)

I tried everything to salvage my Borla. This post gives me horrible flashbacks.

DraGonAlchemist

haha sorry!

HondaKiller

iTrader: (5)

interesting.

SniperHunter

iTrader: (9)

I haven't heard any hissing noises out of my Borla. :|

DraGonAlchemist

check my video and listen for the hiss after i rev it and let it calm down. ..
<embed width="448" height="361" type="application/x-shockwave-flash" wmode="transparent" src="http://i266.photobucket.com/player.swf?file=http://vid266.photobucket.com/albums/ii244/DragonAIchemist/Nissan%20350%20Z/MOV00121.flv">
BTW. .everything is NICE and tight. .i check and have rechecked anytime i get a chance!. .i think it's my exhaust gases mixing in the H pipe. .or could be cause i have header's and test pipes who knows. ..

SuperBlack350z

iTrader: (59)

you do know almost all exhaust with test pipes do that right?

SniperHunter

iTrader: (9)

Dude, that's rasp coming from your test pipes. Not your exhaust.

Edit: Dammit, beaten by SuperBlack. Word of advice: get resonated test pipes and a Magnaflow x-pipe to replace the Borla H-pipe. Eliminates all sound issues.

DraGonAlchemist

when under the car tho i hear it at the H pipe not at the Test pipes. .but you could be right. .if thats all it is i dont mind it. .

SniperHunter

iTrader: (9)

I'm guessing you installed the Borla after you installed your test pipes?

DraGonAlchemist

no i did it all at once. .xcept for the header's i did after. .but you kno. .your probably right on the tp's making the noise cause this guy doesn't have tp's he's just got cat back Borla. .so i think your right. .although i remember other's with the borla always complaining about that hiss. .and it was cars with out tp's. . so im kinda lost but w/e. .as long as the pipes aren't leaking out any where im fine with the hissing. .

05Z33

iTrader: (11)

The hiss does come from the H pipe. I heard it myself when my car was on the lift with res-testpipes. With cats on no hiss at all. I was once told that the reason for the hiss is the gauge of the borla pipe is thin compared to other exhausts. Maybe thats why adding the x-pipe seems to eliminate that sound, but we'll soon see when I install it on my exhaust.

DraGonAlchemist

ok cool ..,if it does eliminate that sound write back or PM me the outcome
thanx!

GA_VQ

IT IS NOT THE TEST PIPES! I don't have test pipes and my Borla does the same exact thing.

350Zenophile

iTrader: (20)

Post before and after pics...

DraGonAlchemist

yeah i already kno it' s not the test pipes. .but i dont argue anymore. .heh. .i know for a fact it's the exhaust gases mixing within the h pipe smashing into each other and creating that hiss effect from the force of passing through one another.. .the reason this G doesn't have the hiss. .is because he blocked the center pipe of the H pipe. .he just explained it to me. .i asked him why didn't he just do away with the H pipe and use separate pipes. .he said it had better support this way!

Although the Z's need that Equalization between sides of engine through exhaust. .if i were to do away with my H pipe and use Individual pipes rather then an X as well ..i'm thinking the exhaust gases get mixed in the rear muffler anyway. .correct?

SniperHunter

iTrader: (9)

Well that's just damn weird. My Borla does absolutely nothing like that. I even have clips of it.

DraGonAlchemist

hmm well not everythings made perfectly the same. .maybe you got lucky with yours haha. .let see clips of it tho .

350Zenophile

iTrader: (20)

That's exactly what mine sounds like with hfc and headers...following the other thread with the magnaflow x-pipe. Seems like the best solution to me. I also recall some old posts saying the welding the h-pipe fixes it as well...dunno how or why...I think the theory was that it is leaky w/all those clamps.

DraGonAlchemist

but thats just it. .mine has no leaks i check and re check and i have someone inside revving it up and i feel around a listen for leaks and there is NONE!!!