GTM C14 H-pipe & Header Info/Instructions

[GTM®]

I pulled this from the cracking exhaust parts thread 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 below.

Our (soon ending) limited production GTM headers and mid-pipe connectors are linked 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. Our mid-pipes will use your front heat shield, and can be used with your stock or aftermarket mufflers and rear heat shields.

GTM H-pipe:

GTM California 1400 H-pipe

GTM® Crack-Proof H-Pipe for your California 1400 CLOSEOUT - WE WILL LIKELY NO LONGER OFFER THESE ONCE SOLD OUT 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. For ALL Q&A and INSTALLATION...

gtmotocycles.com

GTM Headers and mid-pipe connectors;

GTM California 1400 Full Stainless Header System

GTM® Full Stainless Steel Headers for your California 1400 BUILT-TO-ORDER ONLY - ALLOW 4- 6 WEEKS+ BASED ON FINISH REQUEST. CONTACT US TO ORDER. 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...

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.

 

[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 CLOSEOUT - WE WILL LIKELY NO LONGER OFFER THESE ONCE SOLD OUT 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. For ALL Q&A and INSTALLATION...

gtmotocycles.com

GTM Headers and mid-pipe connectors;

GTM California 1400 Full Stainless Header System

GTM® Full Stainless Steel Headers for your California 1400 BUILT-TO-ORDER ONLY - ALLOW 4- 6 WEEKS+ BASED ON FINISH REQUEST. CONTACT US TO ORDER. 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...

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.

 

[scott_m]

Well, I’m jumping in the pool - mostly !

I have the new PC/AT fueling on the way, a new airbox lid to modify, Mistral cans (I just love the sound of my Mistral pipes), and this morning I ordered GTM’s polished headers. I just cannot bring myself to cut up stock pipes with only 2,600 miles on them. That’s just sacrilege to me.

I intend to keep and ride my Eldorado until I am dead (many years from now I hope ) and I don’t want broken exhaust issues, so, thank you GTM .

I’ll report back on my experience when I get her setup and get to ride her in the spring.

 

[William H.]

Received my H pipe today ( Very nicely made ) but have a question, I didn't see a clamp for the crossover or is one not required?

 

[GTM®]

Received my mid pipes today ( Very nicely made ) but have a question, I didn't see a clamp for the crossover or is one not required?

By design, no clamp needed, else it would’ve been on it.
That is the last one we’ll do.
Full header system only from here on out. We’re no longer making these, so Q&A is complete here.