Just bought new akrapovic header for 2020 ZX14r. Instructions show header flanges being installed first to the engine and springs attach to their upper flanges.

But! No header flanges were included in the new box!! So how and where dies tge upper spring hook up?

I think w header flanges are misding. Instruction sheet shows them being installed, but they did not come in tge box!

No phone number to call to talk to someone for help.

Any ideas?

NW

---

Who did you purchase the header from? If it was a shop, they can get them. If it was a private party, go on the Akra website and contact them, or find a dealer who can order them.

---

Did you get a parts list, is anything else missing?

You should get 4 flanges, 4 spigots that go between the head and flange, springs, and the pipes/can(s).

See the 1st pic in this link

http://zx14ninjaforum.com/messages.cfm?threadid=ED67932D-1B78-59F6-02FACC5F21AB21DC&page=1&searchTerm=exhaust#1

From the left - 4 head pipes, 4 spigots, 4 flanges, bag of springs

* Last updated by: C14 on 11/14/2020 @ 10:32 AM *

Has anyone done the full Akra system without a flash? I imagine you need the flash just checking to see if anyone has tried without flash.

---

Mark, we had a member who asked if he could just run the header alone. I gave him the go being it's FI, and he came back saying it was too loud for him, not; Hub you cork soaker, I seized my engine because of you.

Go for it. What are the dangers:
1. A bottom end loss in [you'll find out] yeah, that range.
2. A speed even occurred. You opened the spigot up on air flow so there might be a loss of fresh fuel being pulled out via cam-overlap. It's a-straight-shot-out, not zig-zag to slow down the pules out.
3. A physical fatigue sets in with loud noise with extended riding.
4. A little smile kicks in with the slight gain in HP and oh shit did the cop [who went by] hear that?

---

I already have the Akra slip-ons. I was just wondering if I added the header would I also need a flash?

---

Go for it. What are the dangers:
1. A bottom end loss in [you'll find out] yeah, that range.
2. A speed even occurred. You opened the spigot up on air flow so there might be a loss of fresh fuel being pulled out via cam-overlap. It's a-straight-shot-out, not zig-zag to slow down the pules out.
3. A physical fatigue sets in with loud noise with extended riding.
4. A little smile kicks in with the slight gain in HP and oh shit did the cop [who went by] hear that?

1. Bottom end loss, you slip the clutch more if you want to take off like a bullet. They use this system for drag racing right? No big bottom end loss I noticed with my Tsukigi full system. I was worried too but I couldn't really tell any definite bottom end loss. Maybe I ride too fast. 3000 rpm and over, I definitely noticed no loss in power.

2. You get a tune and your AFR is better than it was with OEM. OEM mappping with OEM exhaust isn't perfect.

3. You wear ear plugs from now on which you should do anyway even if your exhaust is quiet.

4. Yeah you'll make some noise. Tell you the truth, I can't feel a definite gain in hp by the seat of my pants either. The bike is fast as hell with stock exhaust. Will you feel another 15 hp? Probably not but it adds a little character to the bike.

I already have the Akra slip-ons. I was just wondering if I added the header would I also need a flash?

To be safe, you should have it flashed or a good PC5 map. You might have some lean spots with the stock fueling. I tuned mine with Autotune and I can't tell any big change from any of the three maps I used before that. A custom tune will be smoothest and no guesswork about a safe AFR.

---