Bigger isnt always better!! Dont listen to the MTN man

Lol no not mtn, but its still smaller then the 44mm one

Its a proven fact, the best exhaust manifold for the 16V in stock trim, aka no cams etc, is the stock manifold.

Its a proven fact that if you not making ZE power you dont need a branch!! My 7age made 142kw and 189nm with a stock manifold!!

Wheel power yes!! Having cams and shit doesnt justify it as you pointed out?? Are you bi-polar??

Cool but old mani has a leak, between mani and downpipe, and want to keep low down power, I believe that the 20v is better desgined for our motors, so looking to add that, also its just a few mm bigger then stock, changing it also due to a few mods like increase compression and 57mm exhaust and also after market ecu, cold air intake, sooo yes stock mani is good up to 160hp as I read on the net, but if I have something that's better designed and developed then stock shouldn't I use it? Also in terms of after market I think they sick with a viper at 2k and sooo on, maybe over time I will change the down pipe to duel 50mm and the exhaust to 57mm into 63mm but that's when I have more work on the motor

Seems like you have your mind made up already,so fit the mani & see what diff it makes,then report back on your findings...

With the 20v .. I made more power with the stock branch! i lost 8wbhp with a after market branch! I had cams coupled with head work and compression! Odd but thats what happen in my case.. You asked for advice.. in our opinion we rekon stick with the stock branch.. if it has a leak and u want to go this 20v route u should will be nice to see what happens.. then we will know for sure if its better or worse! I always thought 16v has bigger ports than 20v the exhaust ports i know for sure are bigger!!

@rxi bud I have a spare 16v head here, that's how I meassured things, but remember I have the ser3 small port head not ther big port t-vis head, maybe that's why u think its bigger then the 20v, my ser3 ports are small even on the branch, the 20v mani had bigger ports

Yes will fit and give results

Possibly yes forgot big port and small port lol.. i am 1 track 20v minded. lol busy with a 20v build actully cams head work the usual durban spice

@ worx 142kw on the wheels 16v? 83mm bore? race fuel? what u rev it till and did the 7a rods and crank hold up? did you have the crank dowelled for the flywheel ?

Lol cool bud no stress, when you done must let me know, I'll come check the cab out,

Durban owes are secretive so this convo never happened

Hahahahaha bust yo,

Sidez FTW .. 83MM cr must have been high pump fuel would have killed it.. woulda been a beast with METH!!! Must have sounded damm sweet.. If only we could get a cheaper option for a stroked 4age crank!!