Maybe a carbon surround insert to fill some of the open space around the tip might not be so bad. Just an idea. I definitely like Greddy's Ti muffler more but holy hell is it spendy.

 

If you don't mind what is your baseline with stock manifolds I assume? What are your current mods for reference?

Thx

 

My last dyno was all of 355whp 334 wTq (which is really low for mods, see my post about my dyno tests with novel ecu mod and what I think was happening and why)

I've got

Iss QES exhaust
Rr racing ti intake pipe
Toms super ram intake filter
Novel ecu tune

I'm pretty sure the car is putting out about 20 more hp and torque but lack of ventilation at m dyno shop I believe is causing it to pull power on the dyno.

I ran some 1/4 mile times at drag strip which indicated the car was making more power than suggested by the dyno, but never changed procedure at dyno so results all came back the same.

I would expect to see 400+ Whp and 390+wTq if the headers work as they are supposed to (assuming I can get the right airflow in the dyno to the car)

 

Makes sense, keep us updated when you get those suckers on!

 

I also posted up another vid of it on the pavement.

 

sub'd for updates

 

WOW that sounds amazing!!!!!

 

Damn.... Break my wallet more..

-Josh

 

I got wood Mike.

 

Sounds really nice.

 

Sounds awesome

 

Ok f me running that sounds means as hell. I wasn't sold on the equal length until now for the sound only.

Plus I think that the equal length gains will show themselves with the supercharger.

What's your merge collector like, megaphone/reverse cone?

 

^^^^Like This:

Lou

 

Wonder if a version will be made for those goin short.

Their sound will vary.

Sure glad I went with the long tube headers.

 

Yes there is, they are the RCF shorties and modified to fit the smaller flange outlet for the ISF, can be yours for $2700
http://shopfigs.com/v3/index.php?rou...product_id=325