will there be any power increase (bhp/torque) if one were to replace the stock E4 GSR downpipe with E6 downpipe?! do they measure the same?! anyone who have done such a swap before and gain any good result?!
The exhaust on the evo 5 is virtulally identical to that of the E4 apart from the heat protector and high temp sensor also the E5 has an indent to get over the front cross member.This shouldn't be any problem at all.Can't see why the E6 down pipe would not fit as using the same turbo ,would be rediculous if they had changed the flange fitting just to accomodate a new down pipe.
If some one could agree that the E5 exhaust is the same as the E6 then no problem.
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