350Z HR Y-pipe installed on a 2003 G35
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Originally Posted by DaveB
Nope. The HR comes with factory headers. The DE and Revup have exhaust manifolds. IMO, the great thing about the HR OEM headers is that they'll fit exactly like stock, they have a really thick gauge which will help retain heat in the pipes (ideal for exhaust velocity) plus the headers have heat shields which keeps the engine bay temps a lot lower.
HR OEM headers
DE OEM exhaust manifolds
HR OEM headers
DE OEM exhaust manifolds
#110
just installed my HR pipe last night, not quite sure if it gave me gains but the car doesnt feel as sluggish. my car feels like it has a little more pep to it, especially on the freeway at higher RPM.
overall i like this mod and recomend it.
i also did my oil change i went from factory syn blend to castrol full syn, with bosch oil filter.
i also painted my magnaflow muffler gloss black.
did everything in about 1.5 hours with two jack stands. i only lifted one side of the car to take of the stock y pipe.
overall i like this mod and recomend it.
i also did my oil change i went from factory syn blend to castrol full syn, with bosch oil filter.
i also painted my magnaflow muffler gloss black.
did everything in about 1.5 hours with two jack stands. i only lifted one side of the car to take of the stock y pipe.
#111
ill Sedan
iTrader: (87)
Got my HR Y-Pipe on this afternoon. Zack (zackt69) and Dave (OH6 G35) did the install for me....thanks guys! Initial impressions after driving 10 miles or so is that I can definitely "hear" a difference. Exhaust note is deeper and is a lot throatier, particularly above 4K. Don't want to comment on performance impressions yet until I drive it a bit more. I'm also going to get my car dyno'd in a couple of weeks from now, so I'll have hard data to share with everyone. Just dyno'd my car for the first time yesterday, so I have a baseline. Thanks again guys for sharing this info related to the HR Y-Pipe.
#112
A little update, you don't need the damper pucks. I took mine off for the heck of it and it turns out that removing them reduces vibration. Apparently these devices were used to quell the odd and nasty vibrations reported for the higher revving HR motors. They're not needed for the smoother revving DE and if anything, the dampers appear to create some NVH on the DE. The pucks remove easily with a 12mm socket. They're only torqued on with about 25ft/lbs. They're heavy little things too. Over 1lbs each. They're like lead
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Originally Posted by molidor01
DaveB,
You put on 350Z headers yet? Got a pair on the way. Still looking 07/08 cats.
You put on 350Z headers yet? Got a pair on the way. Still looking 07/08 cats.
#118
Here a few videos.
30% throttle, 1st and 2nd gear
From inside the car, full throttle, manually shifting, traction control on (see video 3 on why I left the TC on)
From outside the car, full throttle, TC off, 1800rpm launch, spin all thru 1st and some of 2nd, too much wind to capture much sound
30% throttle, 1st and 2nd gear
From inside the car, full throttle, manually shifting, traction control on (see video 3 on why I left the TC on)
From outside the car, full throttle, TC off, 1800rpm launch, spin all thru 1st and some of 2nd, too much wind to capture much sound
Last edited by DaveB; 11-23-2008 at 12:19 PM.
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