Cut out cat, welded in 2.5 straight pipe purchased from Auto pats store.

Less than 10 bucks

 

"321 is the goods, but pricy. I can check this type as an option, but the overall goal is to keep the cost down.
If 304 is good enough for LR it's good enough for me. "

I just checked the Lindsey Racing website, and they don't use 304, or even stainless steel, they use "Aluminized Exhaust Pipe" which I assume to be mild steel. Honestly, tho, I think I just found my exhaust system... $759.00 for a complete 3" exhaust that is thermal coated, including wastegate tie-in and a flowmaster muffler. That is a HECK of a deal, in my opinion.

Regards,

 

Look 1 link up from the Aluminized Exhaust Pipe

http://lindseyracing.com/944eng15.htm

Aluminized Exhaust Pipe is aluminized stainless, good stuff for exhuast, slightly less resistant to corrosion.

 

I'm confused...where did you find the $795 complete system? Lindsey's site shows that the cat-back only section is $795.

 

Look under the "new products".

And to quote directly from their site:

"Until now, the only complete systems available are stainless steel and polished to boot. We all know there is no performance gain from the stainless steel. We all know there is no performance gain from the polish. This is a case where only size and shape matters. So what did we do?

Lindsey racing put together the most affordable production exhaust system anywhere for the 951. A system so inexpensive, you no longer have an excuse not to buy one. You can purchase this exhaust, a wastegate and intercooler for the price of a polished stainless system.

This exhaust is made from alumized exhaust tubing and a full 3" in diamater. Formed with mandrel bends making it free flowing throughout without pinch points and collapsed tubing like the factory system. It performs as good as ANY 3" system on the market yet it starts at 1/3 the price. It's also lighter weight then stainless steel for those looking for save a few extra pounds."

Like I said, I think I found my solution!

Regards,

 

Scott - I can give you a personal review in a week or so. I've got one that's getting installed as soon as the clutch parts come in. Exact setup you're talking about, thermal coated with the flowmaster.

Unfortunately, they seem to be having a problem with SPEC who makes the clutch I ordered so until that shows up, I've got nothing going on.

 

Which clutch did you go with, and have you figured out why your car goes through so many clutches?. This is the fourth one on your car, right?

I will be very interested in hearing what your opinion of the exhaust is, please keep me posted. Its funny how I keep wanting to do the same things to my car that you are already investigating!

Best regards,

 

Hugh-

Call me when it's done. I want to tag along for a ride

 

As far as 2.5% SS cat bypass, B & B makes one. I think I remember it available at Performance Products. I think you have to call for price, but it's not cheap.

 

Well I talked to my guy and the price is workable for the tubing fabrication, I still need to source the flanges, and I think thats the part thats going to kill the low price if I have to get them fabricated.

So far I think it would be priced around $375-$400, which is higher than I would have like to be able to offer them at, but we'll see.

Does anyone know if the flanges are a standard size that can be bought somewhere?
Thanks
Jason

 

bump, on the flanges??

 

Actually, this is the car's third clutch. The second clutch went in on warranty at 12K for the original owner. So this clutch has about 65K on it. I'm guessing the dealer didn't replace the pilot bearing at that 12K replacement which is what has died this time at 78K. Otherwise, the clutch has been perfectly fine with light effort.

But anyhow, I went with a SPEC stg2 clutch ordered through Lindsey. I can't say that SPEC is leaving me with warm fuzzy feelings as they're shipping department leaves a lot to be desired but Lindsey has been great to deal with. I also picked up a fidanza lw flywheel.

I'm hoping these bits and pieces add up to something that pleases me or this is a lot of pain to go through for a $150 bearing.

Simpson, you're tops on the "get a ride" list.

Scott, it IS funny how we're always looking into the same things. If you've been thinking about Tivo, handheld GPS or universal laptop power supplies, I've got some ideas.

 

It might be a moot point but...........

Stainless is about 1/3 lighter then aluminized mild steel. Mild steel conducts 200% more heat then stainless which means it will radiate heat to surrounding components.

A chambered muffler like the Flowmaster is the last type of muffler you want on a turbo car.Anything in the path of the exhaust will decrease the performance.Why do you think Porsche use a straight through muffler on the 951?

 

Not a moot point at all, Tim. I saw the comment on the Lindsey page about the weight of the system, and was wondering about that myself, as I was of the opinion that aluminized mild steel was heavier than SS. So either their exhaust is "aluminized something else", I am wrong about the weight difference(which would mean you are too, and I would trust that you do know, as you fab these things), or else someone made a mistake in their ad copy.

As to the Flowmaster being the wrong choice of muffler, I will say that I have first hand experience running one on my 951, and without a cat in place, I didn't notice any difference in performance between the Flowmaster and a Borla, which I swapped back and forth with a buddy over a couple of weeks. I decided to stay with the Flowmaster, and have been running it for three years without ill effect. I didn't dyno the car, either, tho... so its all just SOTP opinion on that issue, and I think I will revisit it when I go to a 3" system.

Thanks for responding to this thread. I have seen your work and have a high regard for it, and altho I am looking for something less expensive, I am guessing you will have no shortage of customers for your exhaust systems.

Regards,

 

I agree that the quality of workmanship on Tim's exhausts is first rate.