GTM C14 H-pipe & Header Info/Instructions

[GTM®]

I pulled this from the cracking exhaust parts here in this section to highlight info on my crack-proof GTM C14 H-pipe as sold HERE. It also serves as an outline/instructions on how and where to cut.

I am now also offering all-new GTM headers and mid-pipe connectors HERE to mate to the GTM H-pipe then onto your (our our) mufflers, for those who don't want to cut their stock headers. The new mid-pipe will use your front heat shield, and can be used with your stock or aftermarket mufflers and rear heat shield.

GTM H-pipe:

GTM California 1400 H-pipe

GTM® Crack-Proof H-Pipe for your California 1400 100% Made in SoCal USA. Our ALL NEW cut-and-fit two-piece H-pipe. Works on stock or aftermarket mufflers. Replace it before it breaks. Guaranteed for life. Q&A and INSTALL how-To HERE

gtmotocycles.com

GTM Headers and mid-pipe connectors;

GTM California 1400 Full Stainless Header System

GTM™ Full Stainless Steel Headers for your California 1400 100% Made in SoCal USA. Dealing with a cracked H-pipe connector or heat shield studs? Our full stainless performance stepped-header system mates to stock or aftermarket (including OUR GTM™) mufflers. Comes with mid-pipes that use your...

gtmotocycles.com

Connector pipe is squarely cut just forward of the connecter brace:


This is what you have left, to be re-installed:


Install new H-pipe shown, slide onto cut headers with the angle beehive flex joints facing up and outwards:


Questions? Post below.

 

[Mario A]

Todd, since I own a limited number of tools for metal I want to ask; On the GTM C14 H, After cutting the pipe, do I need to weld any section or modify pipe diameters in any way?

Thanks,
Mario.

 

[GTM®]

Todd, since I own a limited number of tools for metal I want to ask; On the GTM C14 H, After cutting the pipe, do I need to weld any section or modify pipe diameters in any way?

Thanks,
Mario.

Hi Mario, no, plug and play from the post above.

 

[countryguz]

I pulled this from the cracking exhaust parts here in this section to highlight info on my crack-proof GTM C14 H-pipe as sold HERE or click on top pic below. It also serves as an outline/instructions on how and where to cut.

I am now also offering all-new GTM headers and mid-pipe connectors HERE (or second pic below)to mate to the GTM H-pipe then onto your (our our) mufflers, for those who don't want to cut their stock headers. The new mid-pipe will use your front heat shield, and can be used with your stock or aftermarket mufflers and rear heat shield.

GTM H-pipe:

GTM California 1400 H-pipe

GTM® Crack-Proof H-Pipe for your California 1400 100% Made in SoCal USA. Our ALL NEW cut-and-fit two-piece H-pipe. Works on stock or aftermarket mufflers. Replace it before it breaks. Guaranteed for life. Q&A and INSTALL how-To HERE

gtmotocycles.com

GTM Headers and mid-pipe connectors;

GTM California 1400 Full Stainless Header System

GTM™ Full Stainless Steel Headers for your California 1400 100% Made in SoCal USA. Dealing with a cracked H-pipe connector or heat shield studs? Our full stainless performance stepped-header system mates to stock or aftermarket (including OUR GTM™) mufflers. Comes with mid-pipes that use your...

gtmotocycles.com

Connector pipe is squarely cut just forward of the connecter brace:
View attachment 12970

This is what you have left, to be re-installed:
View attachment 12971

Install new H-pipe shown, slide onto cut headers with the angle beehive flex joints facing up and outwards:
View attachment 12972

Questions? Post below.

I just purchased a 2014 CA 1400 w/2086 miles. Owned a 2003 CA EV1100 for 20 years and have some familiarity with MG. Searching the forums to get up to speed on the 1400 and came across this H pipe concern. Is there something I should look at on my exhaust to see if I have a failing part? Should I tap on it or remove now and do a visual or ??? Is there something about the pipe material that will show metal fatigue to look for?

thx….

 

[GTM®]

Is there something I should look at on my exhaust to see if I have a failing part? Should I tap on it or remove now and do a visual or ??? Is there something about the pipe material that will show metal fatigue to look for?

A visual check and inspection is all you can do. You may see cracks, or not. Also pull the front heat shields to inspect the front bungs that are welded on.