x51 header installation

[lmritter]

Greetings:

I have just installed x51 headers on my 2006 C2S. I am convinced that the car runs and sounds smoother. They are an exact replacement for stock. There are six bolts that hold each header to the block. The bolts were removed easily. The only snag I had on installation was some difficulty with the aft most bolt...it was not lining up correctly. I simply loosened the cat clamp to the muffler and the bracket clamp on the cat.....whala...Do yourself a favor and lossen the cat brackets and clamps first..the bolts will easily line up for you.

Have fun

chromedome

[Nick_USA]

Greetings:

I have just installed x51 headers on my 2006 C2S. I am convinced that the car runs and sounds smoother. They are an exact replacement for stock. There are six bolts that hold each header to the block. The bolts were removed easily. The only snag I had on installation was some difficulty with the aft most bolt...it was not lining up correctly. I simply loosened the cat clamp to the muffler and the bracket clamp on the cat.....whala...Do yourself a favor and lossen the cat brackets and clamps first..the bolts will easily line up for you.

Have fun

chromedome

Any pics of old and new?

[lmritter]

Greetings:

I have just installed x51 headers on my 2006 C2S. I am convinced that the car runs and sounds smoother. They are an exact replacement for stock. There are six bolts that hold each header to the block. The bolts were removed easily. The only snag I had on installation was some difficulty with the aft most bolt...it was not lining up correctly. I simply loosened the cat clamp to the muffler and the bracket clamp on the cat.....whala...Do yourself a favor and lossen the cat brackets and clamps first..the bolts will easily line up for you.

Have fun

chromedome

Any pics of old and new?

Hi,

No, sorry...if you go to the Europipe website you can see the x51 headers there...they claim the x51s are as good or better than anything you can buy so.... rather than making their own, they use the X51's

Chromedome

[keninirvine]

Greetings:

I have just installed x51 headers on my 2006 C2S. I am convinced that the car runs and sounds smoother. They are an exact replacement for stock. There are six bolts that hold each header to the block. The bolts were removed easily. The only snag I had on installation was some difficulty with the aft most bolt...it was not lining up correctly. I simply loosened the cat clamp to the muffler and the bracket clamp on the cat.....whala...Do yourself a favor and lossen the cat brackets and clamps first..the bolts will easily line up for you.

Have fun

chromedome

Any pics of old and new?

Hi,

No, sorry...if you go to the Europipe website you can see the x51 headers there...they claim the x51s are as good or better than anything you can buy so.... rather than making their own, they use the X51's

Chromedome

I changed mine out this past weekend too. They were quite easy on my Targa4S, although I wish I had a hoist! I had to loosen a hose clamp to get access to the rear manifold bolt on the passenger side header, and had no problems restarting the bolts. Biggest challenge was getting the new manifold gasket in position during installation of the new manifold. I've got photos that I'll send later this week. I haven't noticed any difference in the headers, but to me the X51 headers just look better (big deal eh?). I also put a PSE system on at the same time, so the main improvement is ability to add noise on demand.

[larrytrk]

I found exhaust note to be a bit deeper with PSE on, through the X51 headers.... I love it, plus the burble!!

[keninirvine]

I found exhaust note to be a bit deeper with PSE on, through the X51 headers.... I love it, plus the burble!!

I didn't try the PSE with my old headers, so don't know what the X51 headers may be contributing to the great sound. But it is deeper than I expected, to my (pleasant) surprise.

Previous poster wanted photos. I've attached one showing the stock manifold and the X51 manifold.

[Gundo]

What a fantastic photo! the difference is amazing.

I'm having X51 headers and AWE 200 cell cats + softtronic installed tuesday and can't wait!

Thanks for the photo and driver reports

[keninirvine]

What a fantastic photo! the difference is amazing.

I'm having X51 headers and AWE 200 cell cats + softtronic installed tuesday and can't wait!

Thanks for the photo and driver reports

Please give some feedback after your installations. I think any difference in power will be due to the 200 cell cats and softronic. Of course, by doing everything at once you won't know where the benefit may be coming from.

[Stefan]

Is Scott doing (I guess done at this point) the Softtronic install? I'd be curious as to what he thinks the power/torque difference will be. I'm sure he has dynoed this or similar installations.

You should have a BBQ and invite people over to hear the difference. :P

I'm having X51 headers and AWE 200 cell cats + softtronic installed tuesday and can't wait!

[JeTexas]

Aside from the torque/power increases, have you noticed any mpg increase?

[lmritter]

Aside from the torque/power increases, have you noticed any mpg increase?

Sir:

With just the headers, I didn't expect any " power " increase,.... does sound a little " throatier " though. I am running about 94 octane here, mixing 100 octane racing fuel and 91 octane crap gas from Union 76 .. 94 octane net really makes a difference. I plan on adding AWE cats and mufflers next month or two.. will keep all informed. The sound has change though and it seems a little smoother overall...

Chromedome

2006 C2s Carrara White...coupe... my dream car