oem ek9 exhaust system?

[andy:]

Are ek9 exhaust systems really that restrictive compared to a, tanabe smr,spoon n1 etc i guess what i'm trying to say, is there going to be any noticable power gains from a full system, compared to stock on an ek9?

 

[_JT]

Probably the rear muffler and the cat will be the most restrictive.

 

[iceman]

ek9 system is fantastic, you dont need to upgrade on stock car and MASSIVE bonus of being quiet so hear engine rather than exhaust

 

[andy:]

the reason i asked, i'm being offered a tanabe medallion, and i would only consider swapping if there was an increase in power that you would notice, i didn't think the oem set-up was that restrictive with a de-cat anyway, thanks for the replys so far

 

[_JT]

Isn't the stock rear muffler baffled? = restrictive.

 

[lumek4]

its only the backbox that is restrictive also the cat. the oem b pipe is very good

 

[donzo]

ek9 system is fantastic, you dont need to upgrade on stock car and MASSIVE bonus of being quiet so hear engine rather than exhaust

I agree with this, with the less restrictive exhausts fuel usuage goes up a fair bit, torque is decreased and it only feels faster because of the noise. Only really works changing the system with a mappable ECU. In my experience anyway.

 

[OEMwh0r3]

keep the muffler and get a t1r b-pipe? I believe that it utilizes the donut flanges and spring bolts.. unlike Tanabe which uses those flat gaskets and just straight bolts= leak city

 

[andy:]

I agree with this, with the less restrictive exhausts fuel usuage goes up a fair bit, torque is decreased and it only feels faster because of the noise. Only really works changing the system with a mappable ECU. In my experience anyway.

so would a plug and play ecu not pick up on a less restrictive system?

 

[donzo]

so would a plug and play ecu not pick up on a less restrictive system?

spoon ecu might compensate a bit, but to get the most from any modification a true map has to be tailored to suit...

 

[andy:]

thanks for the info