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I have an R32 GTS25. I have fabricated a 2.5 exhaust to go from the exhaust manifold all the way to the end. At the moment it is just straight pipe. Obviously it will be too loud as is.

I am thinking about having one Coby Resonator in the middle. Then a RPS Cannon muffler at the back.

My question is wil this muffle the sound a fair amount? and will it reduce the sound of the ugly fart cannon sound N/A skylines have?

Also do the angles of the pipes make much difference to the sound? Because there is a skyline who lives around me and he has the same system i described and i want it to sound the same as that. But i dont want to have to get his car to compare and have exactly the same laugh.gif

Any help will be appreciated :D Maybe someone who has done a 2.5 exhaust on there car and knows what is sounds like.

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my exhasut from japan is all sorts for a N/A, 2 1/4 inch to 2 1/2 then a 3inch part then back to 2 1/2 inch

Havent bothered to dhange it and i dont get any drone at all, actually sounds nice. a bit loud yes but thats how i like it.

i theres only only way to find out, just intall it and make changes after you hear it ect.

Angle of the tip makes absolutely f**k ALL difference, screw your head on..

Get two good oval mufflers from your local exhaust shop, ANY cannon on ANY n/a skyline will sound heinous, with an N/A you want quieter, or else you will be back on here making a new thread asking why your car makes a rasping noise at 3000rpm or so.

Cheers for the help. Im going to go source me two nice 'hot dog' mufflers to point in the system. Have you had hands one experience with the sound?

I have actually got a GOOD quality exhaust tip on the standred exhaust system atm. Sounds great. No raspy sound at 3k

I'm running 2.5" mild steel with a small muffler mid way through, then from the diff back I'm running 3" straight bit of stainless and on top of that I'm running a decat pipe too.

Sounds bloody awesome, couldn't be happier.

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