Corsa Exhaust

[LGAFF]

Why want to trade?

[-=Jeff=-]

Originally Posted by LGAFF

Why want to trade?

Sent you a PM

[sammy]

i also thought the corsa might be restrictive. it was on my car when i got it. the car came with the factory exhaust which i cobbled together removing the resonator and the mufflers . i put in a 3in xpipe and 3 in super turbo mufflers with dual outlets to keep the stock look. i found that i dropped 3tenths and gained almost 2mph over the corsa . dont get me wrong the corsa is a nicely thought out system. i really wasnt looking to replace it when i did the other exhaust till i found it made a pretty decent increase in pwer and was as quiet if not quieter than the corsa . so i sold the corsa .

[Paul Workman]

Originally Posted by sammy

i also thought the corsa might be restrictive. it was on my car when i got it. the car came with the factory exhaust which i cobbled together removing the resonator and the mufflers . i put in a 3in xpipe and 3 in super turbo mufflers with dual outlets to keep the stock look. i found that i dropped 3tenths and gained almost 2mph over the corsa . dont get me wrong the corsa is a nicely thought out system. i really wasnt looking to replace it when i did the other exhaust till i found it made a pretty decent increase in pwer and was as quiet if not quieter than the corsa . so i sold the corsa .

I'm making a note of this - cuz my setup is similar except for the muffs (mine being Magnaflow twin outlets). Quiet it ain't, and there's some resonance at the usual RPMs. Just how much HP/performance the Corsa muff were costing you is a little fuzzy, considering all the mods as a whole, I recon. But, that is a nice improvement to be sure!!

Question: Are the outlet tubes on your tubo muffs long enough to insert a vacuum actuated (e.g., C6-type) flapper? I believe the flapper tube section is approx. 2 to 2-1/2 inches long.)

Nuther Question: Did you replace just the Corsa muffs or was the entire cat-back exhaust a Corsa system?

One more Q: Resonance?

Thanks for posting. (You might guess I've got a hybrid system too; mostly SW and 3" exclusively except for the inlet to the muffs = 2-1/2")

P.

[XfireZ51]

Lee,

Hans still has the Corsa on his 90. I don't recall that his outlet was blocked.

[LGAFF]

Maybe 2.5 gets it done, would be interesting to take 1 car and just swap the exhaust between Dyno runs.

[sammy]

whar i did was to use the stk pipingafyer th headers and plum in a 3in spipe from summit (the narrow one in the cat) and then continuing the stk piping to the 3 in super turbo mufflers with dual exits ,cut off the dual tips from the stk exhaust and put them on so it looks stk . i used the super turbo muffler after talking with an exhaust guy, saying that the turbo style mufflers dont give that drone we hate . i am going to try 21.2 in super turbo mufflers to see if i can quiet it down just a little more . from what i have read the 21/2 in openings in the mufflers might not cause any performance loss as they are so far back. hopefully i can get to it this week and try it next weekend when i go to the strip at sacramento on sat

[sammy]

opps sorry for the typos,just woke up should read after and xpipe

[Polo-1]

Talk with Marc H. about this.

http://www.zr1specialist.com/HAT%20W...20vs%20b&b.htm

[Demps]

I've read Marc's notes. My yellow car had his top end package with a Corsa and hogged out h- pipe. I changed it to a b&b with x-pipe-- hit the rev limiter twice. It rev'd faster!