Gransport cat pipes

[Spartacus]

Does anyone have, or know where I can have made some Gransport (2 bolt flange) squish pipe and secondary cat delete pipes ?

 

[GeoffCapes]

http://www.fastroadconversions.co.uk

They did the ones on my 4200.

The good ones, not the half arsed bodge job.

 

[Felonious Crud]

Didn't @Mattp post details of a fabricator near Brightlingsea? I'll search, hold on.

here you go: https://www.sportsmaserati.com/index.php?threads/custom-exhaust-manufacturer.27547/

and http://iwsdevelopments.co.uk/

 

[Spartacus]

Actually Mark the guy who bodged yours is now alright. He invested in all the proper bending and welding equipment . Has some very nice work on his site now . He was just dabbling in it when we had our first ones done , and just knocked up what he could . I wanted a cheap H pipe and thats what I got . It was £150 fitted .

 

[FIFTY]

He bodged mine too I am going to get it taken apart and put back together properly by a metalsmith near me who is ex army the guy has serious welding skills.

If I knew then what i do now I would have gone with a franchise like powerflow or top gear which can be held to account if they do a bad job at it... Not a guy with a lift and MIG welder

 

[GeoffCapes]

Actually Mark the guy who bodged yours is now very good . He invested in all the proper bending and welding equipment . Has some very nice work on his site now . He was just dabbling in it when we had our first ones done . I might give him another go .

Ask him if I can have a refund then!

 

[Oneball]

Actually Mark the guy who bodged yours is now alright. He invested in all the proper bending and welding equipment . Has some very nice work on his site now . He was just dabbling in it when we had our first ones done , and just knocked up what he could . I wanted a cheap H pipe and thats what I got . It was £150 fitted .


View attachment 53464

The join 3rd from the top is rougher than a badger’s bottom.

 

[TimR]

Am I right in thinking a GS secondary cat/squish delete ( assuming US spec headers) is the same as a for a 4200..?
Interested to see what they come up with and why it's different to the Larini design..? I want to do this mod too...!

 

[TimR]

The join 3rd from the top is rougher than a badger’s bottom.

ha ha..it is, too....!

 

[2b1ask1]

Am I right in thinking a GS secondary cat/squish delete ( assuming US spec headers) is the same as a for a 4200..?
Interested to see what they come up with and why it's different to the Larini design..? I want to do this mod too...!

Yes, it is all dependent on the headers, it seems all GS had US type as stock.

 

[GeoffCapes]

This is what I had done to fix the bodge job.

 

[Spartacus]

Still looks a bit bodgy ;P

 

[MAF260]

Yes, it is all dependent on the headers, it seems all GS had US type as stock.

There are definitely some GranSports with Euro-spec headers. Mine now has them, but at great expense!

 

[Spartacus]

Yes but you changes those Marky

 

[redsonnylee]

If you do get cats made up and you are happy let me know as I’ve got the Euro-spec on mine.

 

[Spartacus]

Mine are two bolt flange which is US spec is nt it ? Primarys are in the manifold.

 

[Zep]

My GS had (has) Euro spec. As I recall it was a bit of pot luck as to what you ended up with.

 

[jasst]

Does anyone have, or know where I can have made some Gransport (2 bolt flange) squish pipe and secondary cat delete pipes ?

Larini !!!

 

[2b1ask1]

US spec is primaries in the manifolds yes; they need to go on mine soon!

 

[jayblue]

I have Supersprint decat pipes on my GS. Quality is good, fit very well and price was reasonable at the time I purchased them a few years ago. Would recommend as an alternative to Larini if you prefer off the shelf to a custom solution.