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Gday all after some longggg hunting im thinking of seeing anyone thoughts on modifying a rb30 turbo exhaust manfiold to suit a rb25 as i really want to stay low mount with my rb25/30 not to keen running a external gate on a stock rb25 manifold as i dont think i will hit the 320rwkw mark on lowish boost hence after looking at the rb30 turbo manifolds it looks like it would be perfect to fit a wastegate right on top of the merge collector

just looking to see how much roughly this would cost and if its just a matter of cutting and re welding the flange to suit the rb25 im trying to keep my manifold budget under 450 and cant really find a hks manifold around for this

any help would be great cheers

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you wont have a proper external gate setup for under $450, simple as that.

the hks manifolds can be had for around 600, but as with any aftermarket manifold theres other costs in getting it all together and running.

ive found a few hks manifolds for 400 but they sell before i get a chance to buy them

all i want to know is if i get the exhaust flange on the rb30et manifold changed to a rb25 are all the spacing correct is it only 2 or 3 flanges that need to be changed also will it fit and will it flow better then a stock rb25 manifold

i can get a vl turbo manifold for 100 another 150 to get a wastegate flange welded and the flanges changed

stock rb25s ive been told and after reading a lot of dyno results they hit a brick wall around 280-30rwkw mark im currently aiming for 320rwkw atm then push it to 350rwkw on my rb25/30

i have a highmount but would love to try something different with the rb30 idea

wait your talking about a standard vlt manifold? they flow the same if not worse than a standard 25 manifold. absolute waste of time modifying it to fit.

you cant set it up to handle 350rwkw with a budget of only $450. either use a standard manifold and setlle for less power or keep saving and do it properly

ive seen alot of guys including my mates make well over 320 out of a stock vlt manifold my old hr31 coupe made that out of a rb30

my $450 budget is only for a manifold nothing else

if i cant get 320rwkw out of a low mount manifold

i will keep my highmount and settle with that

but would love a low mount

really on a stock 25 manifold???

all the results ive seen on the rb25/30 thread i couldnt see more then 2 on there

320rwkw is a personal goal im trying to reach i want more then what ive had before ive had a hr31 coupe with 310rwkw a charged 355 with 308rwkw its just something i want

no idea what a r33 with a rb25/30 fitted with a gt3582r with 320rwkw will be like to drive on the road but hey thats the fun part

it just came across my mind i wonder if a rb30 manifold could fit but if it wont its ok ill stay highmount if i cant find anything else

only reason why i like the 30 idea is it looked alot like the hks manifold design

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