Exhaust System for 2 litre

SpyderJoe · Post by **SpyderJoe** » Sat Apr 22, 2006 9:48 pm

I am trying to pull from the wealth of knowledge on this site so again I am asking for advice and experience. I am going to be buying a new exhaust for my 79 Spider. I want something that sounds nice and may add a few more HP to her. I will probably want to replace the whole manifold, get rid of the cat, (hangs way too low and no emission issues in NH), has a nice chrome single or dual tip. Any advice, experience is greatly appreciated.

Thanks a bunch.

So Cal Mark · Post by **So Cal Mark** » Sat Apr 22, 2006 11:53 pm

check out my website

mbouse · Post by **mbouse** » Mon Apr 24, 2006 12:29 pm

My experience so far has been fruitful. My '80 has received an ANSA dual tipped "free flow" muffler and replacement exhaust pipe with resonator from VICK AUTO. Ahead of that, I recently replaced the 26 year old cat with a test pipe from BRUCEs.

I truly love the sound now, and the elimination of the cat (last item to be replaced) seemed to do the most performance wise.

Some time soon, I would like to try a 4-2-1 manifold to complete the process.

I am experiencing some exhaust system vibration and rubbing since replacing the cat. I am looking to add an aftermarket bracket to the exhaust pipe.

I think it was most fun to change these parts out one at a time to get a feel of what each one "added" to my driving experience. Had I done it all at once, I don't think I would have known which pipe did what for the overall change I presently enjoy.

chrisg · Post by **chrisg** » Fri Jun 16, 2006 9:09 am

as a very minor point to add in this conversation, I have found that almost invariably the addition of a simple hanger mounted somewhere under the 'rear seat' (basically floor to pipe) does wonders for eliminating chronic/periodic exhaust vibrations & rubbing.

I made my own 2" dia. exhaust for my '74 124 Spider w/ a 2 liter. I use a 4-1 header & the only muffler is a dynomax Ultraflow located in the stock rear muffler location.

-c

Wayne Mausbach · Post by **Wayne Mausbach** » Mon Jun 19, 2006 3:19 pm

The cheapest way is to add a stock 4-2-1 as the 4-1 is very restrictive. The ultimate is the earlier post and I'm saving my $ for a polished set.
Ciao
Wayne

Spyderbuddy · Post by **Spyderbuddy** » Mon Jul 24, 2006 9:51 pm

mark, on the fuel injected 124 would i see a increase in hp with your headers and if so what's the numbers.
i am still looking into gettin the k & n set up for the air box

So Cal Mark · Post by **So Cal Mark** » Mon Jul 24, 2006 10:13 pm

I haven't put a system on an FI car yet, nor have I done dyno comparisons. Seat of the pants evaluation shows substantial mid-range and top end gains in a carbed car, even with the optional catalytic converter. The scavenging effect is so good that rejetting of the carb is a necessity.
Sorry I can't give you firm numbers on the expected increase.

Spyderbuddy · Post by **Spyderbuddy** » Tue Jul 25, 2006 7:53 pm

if it leans out a carbed engine what will happen to a fuel injected car my car runs good i pulled the plugs and replaced them today and they were clean by the chilton plug guild they would be considered normal
i'm going to be getting a header just think i should get the air box first

So Cal Mark · Post by **So Cal Mark** » Tue Jul 25, 2006 8:19 pm

the mixture may have to be richened to get the full gain from the header

Spyderbuddy · Post by **Spyderbuddy** » Tue Jul 25, 2006 9:08 pm

do you get a part to connect the header to the front of the converter or is it just the header and i have to plumb the rest

So Cal Mark · Post by **So Cal Mark** » Tue Jul 25, 2006 9:46 pm

the stock converter won't fit my system. If you buy the complete system, a 2 1/4" cat is an option. The exhaust system consists of all tubing and hangers from the header collector to the rear of the car, including a polished stainless Magnaflow muffler

Exhaust System for 2 litre

Exhaust System for 2 litre

Exhaust for 2 liter