R33 Gtr Exhaust Manifold & Dumps

[nismo z-tune]

Hey guys n girls

upgrading turbos on my gtr to GT2860-7. figured i might as well change the exhaust manifold and dumps.

although budgets getting a bit tight, so i was looking at:

- X-force split dump pipes

- JJR Exhaust manifolds (only other brands i can find that have twin turbo manifolds are Tomei & HKS. out of my price range at this point)

i spose what i'm looking for is anybody had any experience with these items and any problems?

cheers

Matt

[R.3.2.G.T.R]

backward step on both counts

r33 gtr dumps will be better than split dumps from xforce and free, only 34gtr is better otherwise tomei dumps which are $800 odd

same with manifold, nothing wrong with stock, made of cast so won't crack like cheap manifolds

just port match both dumps n manifold and ur set

[nismo z-tune]

wasn't sure how restrictive stock were.

thanks mate

backward step on both counts

r33 gtr dumps will be better than split dumps from xforce and free, only 34gtr is better otherwise tomei dumps which are $800 odd

same with manifold, nothing wrong with stock, made of cast so won't crack like cheap manifolds

just port match both dumps n manifold and ur set

[STATUS]

leave the stock manifolds one and make sure to use all the std heat shielding.

[nismo z-tune]

righto mate thanks for the advice. i'm thinking bout leaving the stock manifolds and getting HKS dump pipes.

leave the stock manifolds one and make sure to use all the std heat shielding.

[XRATED]

I've run over 400rwkw with bone standard exh manifolds.. Id highly recomend port matching them and ceramic coating, as well as the standard heat shields. If you really want to get serious, 34 N1 exhaust manifolds are a better casting, better material and slightly larger than stock GTR manifolds.

As for dumps- I've allways used the trust dump and down pipe set for low mounts.

For -7's, just clean up your stock ones or a set of r34 ones- with a decent set of down pipes that merge nicely.

J.

[Beer Baron]

the HKS dumps and HKS copies are not all that good. far too small pipes and very short merge anyway. got for a nice big bell mouth style dump. the tomei ones are the best. if you can't afford them, get some 34 GTR dumps which are a small improvement over the stock 32/33 gear.

seriously with what you were going to spend on x force dumps and JJR manifolds I would just spend that whole budget on a set of good dumps (tomei) and re-use the factory manifolds. if you really want manifolds the tomei ones are excellent but of course you pay for it.... 90% of the others are not worth buying at all and most will eventually start leaking etc. all of them radiate out more heat than the stock ones which is not good either.

so keep stock manifolds, buy tomei dumps. problem solved.

[nismo z-tune]

righto thanks guys. i'm only chasing 450ish horsepower at the wheels. stock manifolds & dumps should be right

where and how much to do port machining and ceramic coating

[TiTAN]

for the ceramic coating talk to craved coatings.

http://cravedcoatings.com/index.html

[XRATED]

you can match port the mani's yourself quite easily.... or your mechanic can do it.

J.

[SiR_RB]

anyone used HPI dump pipes? look very similar to the tomei expreme, but are afew hundred $$ cheaper?