Bf Typhoon Exhaust

[Moose]

Hi all,

Sorry to be a bother with another thread, but I had a search and found a few answers to my questions, but obviously being an XR6T site, most of the answers related to the XR6T and I just want to make sure I get things right.

I want to upgrade the exhaust on the F6, I want it to be a little bit louder than stock, but dont want it overly stupidly loud, but I want a noticeable performance upgrade as well. My thoughts were a 4" dump pipe, high flow 4" in cat, then 3.5" cat back with probably two mufflers, then out the back twin 3" pipes.

Question is, if I upgrade the exhaust, am I going to need to do anything else, such as injectors, re-tune it etc etc? Or if I do that exhaust, will it run fine? My end plans are to do the injectors, flashtune, bigger fmic etc, but doing it one bit at a time.

Thanks it advance

[blueboost]

do the exhaust when you do the injectors. it will over boost.

if you want noise for now, remove the centre mufler, that gives you noise, without messing up the tune, or power.

David

[Benny-4000]

  Moose said:

Hi all,

Sorry to be a bother with another thread, but I had a search and found a few answers to my questions, but obviously being an XR6T site, most of the answers related to the XR6T and I just want to make sure I get things right.

I want to upgrade the exhaust on the F6, I want it to be a little bit louder than stock, but dont want it overly stupidly loud, but I want a noticeable performance upgrade as well. My thoughts were a 4" dump pipe, high flow 4" in cat, then 3.5" cat back with probably two mufflers, then out the back twin 3" pipes.

Question is, if I upgrade the exhaust, am I going to need to do anything else, such as injectors, re-tune it etc etc? Or if I do that exhaust, will it run fine? My end plans are to do the injectors, flashtune, bigger fmic etc, but doing it one bit at a time.

Thanks it advance

Hey there,

I am in a similar situation to you. I have a BFII typhoon. My first mod was to pull the factory cap off my exhaust underneath the car. This at least lets my engine use both 2.25" pipes instead of only one. Then I bought 60Lb/Hr siemens injectors and and capa flasher box with a generic tune to suit the siemens injectors from intune motorsport for $945. I installed the injectors myself, uploaded the 98 tune and boy did that make a difference. It now spins the wheels up in second gear more vigorously than it used to in first gear. The factory boost gauge now reaches the stop at approx 3500RPM instead of never passing the half way point. As for the next stages, they all require retunes, so in one go I am fitting an larger intercooler, bigger fuel pump, plenum & xforce exhaust and then I am going to drive it very gently to Nizpro for a custom tune and some internal turbo modifications including the flapper valve and actuator. This should give me up to 385rwkw.

[Buf-Phoon]

have you had the car on the dyno to check the tune ,afrs etc ?? not bad insurance just to make sure everything is spot on

[jetute]

so whats better for tuning.... the 4 inch dump or the twin system... I thinks its 3 inch with a seperate wastegate. in the xforce that is!

[Benny-4000]

  Buf-Phoon said:

have you had the car on the dyno to check the tune ,afrs etc ?? not bad insurance just to make sure everything is spot on :holiday:

No not yet. And you are correct, that is what I really should do, but I only need to install a fuel pump and fit a smaller battery and then I can bolt on all the other stuff that I already have and only have to pay for one tune.

[hanra]

  Benny-4000 said:

My first mod was to pull the factory cap off my exhaust underneath the car. This at least lets my engine use both 2.25" pipes instead of only one.

I thought this was only done on the territorys?

[Benny-4000]

  hanra said:

I thought this was only done on the territorys?

I thought so too.

I had my wifes territory turbo de bunged and that involved cutting out the muffler and poking out the thin disc that blocked one of the holes. My typhoon had an exhast that looks like it was common to the GT. One the 2.25" pipes starts to head towards the other side of the car and then it was flared out and had a cap placed over the hole and a clamp fitted that holds the cap in place. All I had to do was remove one screw and the cap and clamp came off easy. The job looked like a factory one and not a home job. Ford told me that this was done to meet the new stricter euro emission std and that the initital loss of power had been compensated for by a different cam profile resulting in a much quieter car with better fuel consumption. Maybe just a typhoon BFII thing or maybe my car is just special. LOL.

[Geeseman]

Have you got any pics of this?

Has anyone else found that their F6 exhaust was bunged?

[bloosted]

yeah I would like some pics too