Performance Exhaust and Header for Boxster

[delubozparts]

Originally Posted by RandallNeighbour

In a most amazing fashion, my rear trunk is now so cool that I can put most anything back there and it does not boil or melt due to the heat the stock muffler was giving off.

DelubozParts' sport exhaust not only sounds great, it's SUBSTANTIALLY cooler than the stock muffler. I knew it was smaller and had two chambers, but I didn't expect such a dramatic drop in trunk temps.

Last year, I drove the Boxster to California and I actually melted a tennis shoe lace into the sole of the tennis shoe because it rode in the rear trunk of the Boxster in summer weather.

This weekend, I drove to central Texas (4.5 hours) and as I unpacked the car I realized that the trunk wasn't hot enough to deliver pizzas any longer.

:dance:

Che, you need to advertise this about the mufflers you sell. It's worth something to those that have melted ice cream on the way home from the store, etc.!

Hi Randall,

Wow this exhaust didn't turn your trunk to oven,definitely a Interesting update. Unfortunately I don't have these exhaust & header back in days when I had my Boxster, everything for Porsche cost arm & leg.

Member Darin & kwu just order the exhaust today, I even marked the 2 Holes for drill guide. They should receive the package in next 3-4 days, alsow Darin will Post a update sound clip (ie stock sound / After Exhaust installed sound).

The sale is slowly, I'm very Happy with 986forum.com members are ordering due to the fact of the Performance & Quality + Pricing.

After all I can't make it without your help in the first place, always my Buddy in Houston.

Keep in touch !



Best Regards,

Che

[racer_troy]

OK...well...I've only a few minutes here so I'll be as brief and to the point as possible (which is sometimes difficult for me...)

The header install went well. As noted below, I've an o2 sensor issue to work out that is as of yet, unresolved. I will be reviewing the PET's once again and looking to see if any of the MY01 and later sensors have longer leads to allow plugging in pre and post primary cat. I'm scheduled to do this on Monday the 30th and then back on the dyno for the final numbers Nov 2.

So....having said that...I do have some informaiton from a baseline pull and Che's 2.7L header system.

Here's the baseline:

178.3bhp @ 6265rpm
157.8lbft @ 5178rpm

This shows appx 17.8% drive train loss assuming the car was producing all 217bhp as reported by the factory.


Che's headers:

184.6bhp @ 6386rpm or net +6.3bhp
155.4lbft @ 5700rpm or net -2.4lbft

This is not bad on the HP side and as expected with the torque. I've some theroies and more photos to share later.

Unfortunately, due to the o2 location issues on the MY00, we used some of our alotted time to problem solving and less evaluation. I'll try to get the full on test report soon.

Feel free to start the questions.

--troy

[edevlin]

Interesting numbers for the baseline pull on the 2.7L. Does anyone else have baseline dyno numbers for a 2.7L? I had some mods done on my 2000 Boxster before I found a dyno, so I lack a baseline (really kicking myself on that one).

I have been assuming a 15% loss in the powertrain. I believe the numbers racertroy got, but a 17.8% loss seems high to me. Any ideas why there would be that much drivetrain loss?

Ed

[Gary Gaukler]

Originally Posted by edevlin

I have been assuming a 15% loss in the powertrain. I believe the numbers racertroy got, but a 17.8% loss seems high to me. Any ideas why there would be that much drivetrain loss?

Mustang dynos typically report lower numbers than, say, a dynojet.

racer_troy, do you have the full HP and torque vs rpm graphs?

[racer_troy]

Gary,

I wish I did as I was very very curious about the change in power curve.

This is all I was given.

--ts

[unklekraker]

Hi y'all! I'm about to purchase an exhaust from Che and would like to know if anyone here (from San Jose, CA.) knows or would recommend a shop that would install the exhaust i'm getting from Che...

I made a decision to get the exhaust to Che after spending a good an hour and a half reading the thread :dance:

[Darin]

I just wanted to let everyone know that I received my exhaust from Che today. He received my payment on Monday and shipped out the next day. Very quick response. Further, Che replied to my questions very quickly and kept me informed of my order. It certainly is comforting to know there are quality people to do business with.

The exhaust came well packaged and no damage. As noted earlier, Che even marked where the holes needed to be drilled on the mounting. Hopefully this weekend I will get it installed. I plan on making some before and after sound clips to share.

Darin

Go Cards!

[jeffsquire]

Originally Posted by unklekraker

Hi y'all! I'm about to purchase an exhaust from Che and would like to know if anyone here (from San Jose, CA.) knows or would recommend a shop that would install the exhaust i'm getting from Che...

I made a decision to get the exhaust to Che after spending a good an hour and a half reading the thread :dance:

_____________________________________

Unless he's made them recently, Che only makes these for 97-99 Boxsters.

[ChrisZang]

I have a general question for delubozpart:

I looked at the picture of the exhaust on eBay and to my it looks, well let's say "very similar" to a GHL (which I have on my Boxster), with a few significant differences:

The differences I notice are:
* The GHL uses the original mounting bracket for the stock exhaust (the one which goes on top of the exhaust). The advantage of that is that the two mounts on top of the exhaust are rubber mounted while your exhaust bolts on directly, so I'd expect that vibrations are not dampened.
* the stock exhaust (Boxster S) is mounted at 6 different locations: the mounting bracket (on top), two mounting brackets to the cats, a center mount (don't remember where it's connected - differential?) and of course the two connection tubes to the cats. The GHL uses all these mount points with exception of the center mount, but well you still have 5 mount points
* Your exhaust only seems to be mounted "on top" and then bolted on to the cats via the connection tubes. meaning 3 mount points.

This would make me a bit worried that the whole construction is not sturdy enough and will suffer metal fatigue much sooner than the GHL or the stock exhaust.

Am I missing something here?

Chris

[delubozparts]

Originally Posted by ChrisZang

I have a general question for delubozpart:

I looked at the picture of the exhaust on eBay and to my it looks, well let's say "very similar" to a GHL (which I have on my Boxster), with a few significant differences:

The differences I notice are:
* The GHL uses the original mounting bracket for the stock exhaust (the one which goes on top of the exhaust). The advantage of that is that the two mounts on top of the exhaust are rubber mounted while your exhaust bolts on directly, so I'd expect that vibrations are not dampened.
* the stock exhaust (Boxster S) is mounted at 6 different locations: the mounting bracket (on top), two mounting brackets to the cats, a center mount (don't remember where it's connected - differential?) and of course the two connection tubes to the cats. The GHL uses all these mount points with exception of the center mount, but well you still have 5 mount points
* Your exhaust only seems to be mounted "on top" and then bolted on to the cats via the connection tubes. meaning 3 mount points.

This would make me a bit worried that the whole construction is not sturdy enough and will suffer metal fatigue much sooner than the GHL or the stock exhaust.

Am I missing something here?

Chris

Hi Chris,

The Exhaust I'm selling are designed with 3 mounting point, with this design will cover all the Boxster model & years.

If this exhaust were made with stock Mounting location like GHL, than the R&D cost will end up higher. Which I would have to make this exhaust in 2 different applications.

With the 3 mounting location is sturdy, as the center top rubber mount absorbs the vibrations from driving which eliminate the metal fatique or stress on the welding or piping.

Please keep in mind I do offer 3 years unlimited miles warranty on these Exhausts & Headers, if any had metal or cracked flange or welding are entitle for new replacement.

Hope I answer your questions. Thank you !



Che