DIY 4200 sports cats

[Chrisbassett]

Posted this before, it explains the different types of manifolds & exhausts quite well

http://www.maseratilife.com/forums/...ing-usa-header-euro-maserati_4200_exhaust.pdf

 

[mjheathcote]

Posted this before, it explains the different types of manifolds & exhausts quite well

http://www.maseratilife.com/forums/...ing-usa-header-euro-maserati_4200_exhaust.pdf

Yes it does, tried to upload the pdf to the forum earlier but was too big a file size.

 

[MAF260]

You are better off getting your back boxes modified like mine as you get to keep your valves and the tail-pipes look standard. Let me know if you do, and I'll help you get them done.

Thanks, mate. I'm going to stick with the Larinis for now. I have the valved versions, so can go into stealth mode when required!

 

[MAF260]

Posted this before, it explains the different types of manifolds & exhausts quite well

http://www.maseratilife.com/forums/...ing-usa-header-euro-maserati_4200_exhaust.pdf

That must be where I've got some of my info from. Seems that I can do what I'd planned - swap to UK-spec manifolds and then make it up as I go along from there. The pictures really bring home just how sh!t the US/Canada manifolds are. Big, ugly and inefficient - like a lot of America!!

 

[ecarca]

Just posted this:
http://www.sportsmaserati.com/showthread.php/12907-My-custom-cat-bypass-job-and-a-couple-of-videos

Check the pictures, I posted the link. I wanted to do the same (which basically is the Larini design) but the shop I went to did not have high flow cats. They also did not have the machine to make proper (thicker) squashed part so I sticked to the OEM design and part. I guess Maserati engineers made their flow calculations

 

[rviscont]

HI guys,

I am also very interested in knowking the diameter of the larini dual pipes. I reckon is a 450mm or 500mm at the most.
Do anyone has installed the formuladynamics primary CAT?
Mine is the one with a primary cat bundle with the mainfold and then anothe rpipe wiht the dented pipe and secondary cat.
Thank you in advance

Roberto