hacker-pschorr

You have an H-pipe.
Still better than stock, but proven not to be the same gains as the Louie Ott designed X-Pipe which is what the boys in Utah produce and sell.

Louie put a lot of time and R&D into the exact angle of his X pipe.

Jadz928

Hacker,
The one that 928MS sells is not the same as Louis' design. Fundamentally, yes - in form/execution, no.
Dave assumed the Ott design and then furthered it thru his own means of design, testing, etc.
Look thru historical dyno data "(I have some I can post if requested) and you will see a difference in the Ott and the 928MS x-pipe. Difference being even better gains!

hacker-pschorr

Sounds good, wasn't aware of that. I just remember when Dave Lomas was basically taking the torch from Louie to carry on the X-Pipe product.

IMO that makes it an even better value for the price they are asking.

jorj7

They looked like this:



The T-bolt clamps that came with the X-pipe didn't seem to hold the cats
connected to the stock exhaust pipe. One came loose on the first test drive.
I still use these to hold the cat to the X-pipe:

rligeti

here's the pipe i'm installing...

Imo000

That's an H not an X pipe. Have the same one on mine but the crossover is a little more dowstream.

Mike Frye

I see you've got the air injection still hooked up in front of the high flow cats. I don't think that's necessary or even wise. Not sure if it does anything but the new cats don't need it to be clean enough to pass emissions inspection.

Clamping might not be an issue though. You've got the pipe sections behind the cats where the 928MS (Lomas) pipes end before the cats.

Speedtoys

True..but if I go that route, it'll be all mandrel, and thats gonna suck up a week of evenings by my fabricator..its not easy...even when I do all of the final welding after he spends forever tacking, adjusting, etc....

Hulk no like crush bent pipe!

Imo000

Just because the pipes are there it doesn't mean there is a hole in the exhaust pipe. On my H-pipe the injection pipes went to a dead end...... didn't know this till I decided to cut them off. But it saved me from welding up the hole.

Speedtoys

I dont think anyone would complain if you reposted the dyno data, and where to buy it.



I would not!

Hilton

They're not 928MS pipes. (sorry, the pedant in me had to post this )

928 Motorsports only resell them, they didn't design nor produce the popular X-pipe that several of our vendors resell.

Dave Lomas works at "Motorsports SLC", and Dave further improved Louie's design. Motorsports SLC also designed and produce the cat-back system that Roger recently announced.

Anyway.. carry on..

Hilton

You can buy it from Motorsports SLC, or 928srus, or 928 Motorsports - don't think 928 Specialists or 928 Intl sell it, but I could be wrong

ROG100

Hilton is correct of course.
Only one X pipe available in the US.
Made by Dave Lomas of Motorsports SLC.
928sRus is a reseller of the Lomas X pipe.

Aluminised X pipe is $420.
SS X pipe $575.
Cats are $305 for the pair.
Instal kit $30 to $45.