Corsa cat back kit

Generally speaking, a cat back system alone will not gain much if anything other than sound.  Downpipes on the other hand, even with stock exhaust, will pick up a tenth or two. 
 
I was told LMS got 12hp from this kit being it's 2 1/4 inch compared to the stock 2 1/8 and it also deletes the 3rd cat. I wanna hear from guys who have this kit that have raced.
 
On the LME website (few months ago now) I remember seeing the Corsa cat back being rated at 5-6 hp...combined with the dpipes I could see the extra power.

Rich

 
The Corsa cat back is a straight thru eliminating the 3rd muffler and converter,every vendor,retailer have there own set of numbers for sale,promotional purposes,but a while back the dyno showed 10-15 whp,some may differ.
 
ZSHO said:
The Corsa cat back is a straight thru eliminating the 3rd muffler and converter,every vendor,retailer have there own set of numbers for sale,promotional purposes,but a while back the dyno showed 10-15 whp,some may differ.
Was that dyno with or without dpipes ZSHO?

Rich

 
SHOnUup said:
ZSHO said:
The Corsa cat back is a straight thru eliminating the 3rd muffler and converter,every vendor,retailer have there own set of numbers for sale,promotional purposes,but a while back the dyno showed 10-15 whp,some may differ.
Was that dyno with or without dpipes ZSHO?

Rich
Recall 10-15whp without DP'S,combo of both with tune 30-35whp.
 
I wasn't at a track..
But I definitely felt a difference when I did my LMS corsa cat back. Actually felt bigger difference with cat back then when I did the downpipes..


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BMC10SEC50 said:
I have a guy on FB telling me he had no gains at the track compared to the stock set up.
For the small gains with just adding cat back, few degrees warmer with some extra humidity could be the cause of a  lack in improved times.

Rich

 
BMC10SEC50 said:
I have a guy on FB telling me he had no gains at the track compared to the stock set up.
Bill to answer your question,have appt this fri at dealer to install some new rubber,lets schedule a time so we can meet at the track,hopefully this time i can make it. ;)
 
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