Open Flash Header - Sound and Performance Comparison

[FR-S Matt]

Originally Posted by zex

Can anyone chime in about any smells from the header?
Ive driven behind a friend with the borla UEL catless, and I got nauseous from it after a little back

That's because your friend has a catless front pipe. Catted ones won't do that.

[Captain Insano]

Thanks for posting. I am running the q300 and will have OFH soon...

[zc06_kisstherain]

great video.

[xlid007]

Awesome vid. That boxer sound is amazing.

[Acree]

Very well done comparison! Thank you for the contribution to the community.

[CajunFRS]

Wish we had some side by sides of header vs non but both cars manual or auto.

Video was really nice. Thanks!

[reardrv]

Thanks for the comparison! I am curious though, is your Nameless mid pipe the version with or without the Helmholtz resonator?

[nlowell]

Originally Posted by reardrv

Thanks for the comparison! I am curious though, is your Nameless mid pipe the version with or without the Helmholtz resonator?

Nameless combo pipe (2.5") with high-flow cat and helmholtz resonator

[Fast_Freddy]

Originally Posted by FR-S Matt

That's because your friend has a catless front pipe. Catted ones won't do that.

I have a HFC front pipe but my exhaust still stinks. Not as bad as it would without any cat but still a lot more than it did stock. There's simply no way that a single 200cpi aftermarket metallic cat is going to clean the exhaust gas as effectively as a pair of oem 300-400cpi ceramic cats.

[Insanity]

Hey guys, im really torn about getting the OFH apposed to a catted header. Current setup is a corsa catback which i love the deep throaty aspect of it and a top speed front pipe, unresonated and catless. Truthfully just worried about it being obnoxiously loud for daily driving. I could put my stock front pipe back on but hate opening up the header only to close the system down the line. I want the best gains and catless is the way to do that but at what cost. So if anyone has a catless header and a catless front pipe what are your thoughts? Thanks all

[Gilwith1l]

The blue car sounded like crap .

[s2d4]

Originally Posted by Gilwith1l

The blue car sounded like crap .

Get the catted uel from another vendor then, no rumble on that one when going WOT.

[fenton]

Is there any tips on getting this installed? I seem to remember someone posting something like that but I can't seem to find it.

Should we be buying new gaskets for installation? Just header or front pipe connection too?

Thanks

[Sojhinn]

Originally Posted by fenton

Is there any tips on getting this installed? I seem to remember someone posting something like that but I can't seem to find it.

Should we be buying new gaskets for installation? Just header or front pipe connection too?

Thanks

Fenton order the grim speed gaskets for all three connections on the header. As for a tip you may need a flex joint to get one of the bolts on or off when connecting the headers. Other then that remove cover, remove bolts, swap in header!