ek1 vs ek4 muffler

[-MuGen PoWer-]

Hey guys whats the main difference between a ek1 exhaust (muffler part in particular) compared to the ek4?
Is the piping the same diameter?

Would the ek1 axle back bolt onto the ek4 stock exhaust system??

[jdm_kid]

i think the EK1 has a pee shooter exhaust tip while the EK4 ones had the more sporty short med tip ..

and i dont see why it shouldnt bolt up to a EK4 stock system ...

[Limbo]

it bolts straight up

[Mugen_B16B]

the ek4 is 2inch piping and ek1 is 1 1/2, good bang for bucks for ek1's, i have compared this and a ek1 stock with ek4 exhaust system all the way from cat til catback vs ek1 with stock ek1 b pipe with xforce twin loop muffler running off xforce headers and CAI [i think, jimmy ur gonna have to confirm:S] but the ek1 with the ek4 ehxaust proved it was faster and responsed much quicker to the throttle

[-MuGen PoWer-]

thanks for feedback, if any more info or experiences please post

[bennjamin]

ek4 is slightly bigger inlet + internals + tip. ITs made for a 118kw engine where the EK1 is made for like 88kw

Thats it really.

[unl3a5h]

sorry to revive this thread but just wanted to ask. my civic had a b18c swap done not too long ago and im still using my ek1 exhaust will i expect a large gain from a set of xforce extractors and 2.5 inch system the whole way? is an integra vtir exhaust same 2 inch as ek4?