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Thoughts on if its possible to twin turbo the viggen... was toying with the idea and was wondering if its possible and also if its a good idea or not
 

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If you stay with smaller turbos, it'd be easier to fit them, as well as keeping lag at bay. You'd need custom oil lines, custom coolant lines, custom exhaust manifold or custom "Y" piping, custom down pipes, custom oil return, custom intercooler hoses, custom support bracket as it'd be too heavy for the manifold to carry the extra weight by itself, and custom intake-to-turbo inlet piping, or even better dual air filters run right off the compressor housing. With T25's, they have 2 bolts holding the pipe to the housing, so if you got 2 stock aluminum pipes and cut them right after the 90 degree, you could probably fit round filters to that and bolt the pipe up. Would also need to tune the ECM for optimal performance.
 

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Probably easier, cheaper and result in more performance if you bought 2 turbo's that worked well in a sequential setup first and then found a car they would fit in.
 
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