X Pipe Question?
Thread Starter
Instructor
Joined: Jan 2004
Posts: 175
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From: Loughborough, UK
X Pipe Question?
Relates to a 1993 LT1 Stock exhaust sytem.
I have just cut the stock system to replace the standard mufflers with Magnaflows.....WOW!, Love em!
Now I want to replace the rest of the standard system with stainless and elliminate the cats.
Does an X pipe replace the resonator on the standard system or will I still need one in place??
I have just cut the stock system to replace the standard mufflers with Magnaflows.....WOW!, Love em!
Now I want to replace the rest of the standard system with stainless and elliminate the cats.
Does an X pipe replace the resonator on the standard system or will I still need one in place??
Burning Brakes
Joined: Feb 2002
Posts: 1,232
Likes: 10
From: Montrose Colorado
On my ZR1 I removed the resonator and had my muffler shop build a 3" x-pipe. I installed it right behind the long tube Aspaugh headers. I used 3" pipe from the x-pipe to the Flowmaster Force II mufflers. NO CATS. The system is mellow if you drive it easy with little resonance at "normal highway speeds," however when you run it to the nut it shakes the local Police out of the coffee shops. You will definately gain some sound and hp with the x-pipe. Way more if running long tube headers with no cats. Later 84 CF 91 ZR1
Race Director
Joined: Nov 2002
Posts: 19,149
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From: First to Sign Grumpy's Hat Only 53 miles from Hell
St. Jude Donor '06-'09-'10-'11
On my 93 I removed the resonator and replaced it with the x-pipe from magnaflow which is almost the same lenght. If you remove the cats you will have to have a test pipe placed in there.
Burning Brakes
Joined: Feb 2002
Posts: 1,232
Likes: 10
From: Montrose Colorado
Originally Posted by WZDADS
On my 93 I removed the resonator and replaced it with the x-pipe from magnaflow which is almost the same lenght. If you remove the cats you will have to have a test pipe placed in there.
header to X to muff's 
Race Director
Joined: Nov 2002
Posts: 19,149
Likes: 2
From: First to Sign Grumpy's Hat Only 53 miles from Hell
St. Jude Donor '06-'09-'10-'11
Originally Posted by corvettecentral
Relates to a 1993 LT1 Stock exhaust sytem.
I have just cut the stock system to replace the standard mufflers with Magnaflows.....WOW!, Love em!
Now I want to replace the rest of the standard system with stainless and elliminate the cats.
Does an X pipe replace the resonator on the standard system or will I still need one in place??
I have just cut the stock system to replace the standard mufflers with Magnaflows.....WOW!, Love em!
Now I want to replace the rest of the standard system with stainless and elliminate the cats.
Does an X pipe replace the resonator on the standard system or will I still need one in place??
Why do you want to off the cats??? HP gains is not all that much, especially if the motor is stock. Plus you won't have to worry about emission testing later down the road.
Just my 2 cents.
Thread Starter
Instructor
Joined: Jan 2004
Posts: 175
Likes: 0
From: Loughborough, UK
Originally Posted by WZDADS
Original pipe are stainless and have smooth mandrel bends. You can save $$$ by just cutting off the resonator and mufflers. Just make sure you go to a good muffler shop for the welding. I even had the LT1 tips welded on so it looks practically stock.
Why do you want to off the cats??? HP gains is not all that much, especially if the motor is stock. Plus you won't have to worry about emission testing later down the road.
Just my 2 cents.
Why do you want to off the cats??? HP gains is not all that much, especially if the motor is stock. Plus you won't have to worry about emission testing later down the road.
Just my 2 cents.
Here in the UK the emissions testing equipment is not geared up to read my engine, so my garage doesn't bother to test it. If they are not going to test me for emissions I am most certainly going to do away with the cats!!!!!, why else are they there??
