2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Exhaust help and suggestions!!!

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Old Apr 5, 2007 | 11:44 PM
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Exhaust help and suggestions!!!

I can have a local shop fabricate me an exhaust in any size piping from headers back for a total of 150 dlls. What do you guys recommend? Catless or high flow cat, What size exhaust should I get? my mods are the 2.7 inch pulley with the 60 lbs. and poly mounts. Is this a good price? what should i do?

Last edited by hg_5; Apr 5, 2007 at 11:45 PM. Reason: Automerged Doublepost
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Old Apr 6, 2007 | 12:01 AM
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If you going 2.5 don't bother changing from the whole cat-back. The SS/SC has a mandrel bent exhaust all the way back until it goes over the rear axle where in reduces down to 2.25. If you replace that section you will have a perfect 2.5 inch cat-back with out all the extra cost. Put a magnaflow muffler part #12256 for about $60 and use your stock tip. My total set up is going to cost $110 after tax. If anyone wants the info of the place on the internet that has it for $60 shipped let me know and I will post it.
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Old Apr 6, 2007 | 12:09 PM
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Please post it.
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Old Apr 6, 2007 | 12:27 PM
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2.5" on the stock catback is sorta untrue even before the axle. At the flange before the resonator, the openning is actually 2 1/8 inches. Also, where the stock exhaust is welded, it also goes down to about 2 1/8 and then 2.25 inches. I believe its best if you replace the whole thing. Plus, the stock resonator is restrictive, and can be replaced by a straightflow glasspack resonator for extra flow.
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Old Apr 6, 2007 | 12:39 PM
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Originally Posted by hg_5
I can have a local shop fabricate me an exhaust in any size piping from headers back for a total of 150 dlls. What do you guys recommend? Catless or high flow cat, What size exhaust should I get? my mods are the 2.7 inch pulley with the 60 lbs. and poly mounts. Is this a good price? what should i do?
dude you live in tx , theres one mandre bender in tx and its in houston , not in eagle pass, its gonna be *********CRUSH********** bent and in my opinion its gonna be a HUGE waste of money

a crush bent 3in exhaust is only as big as about a 2.34 -2.4 mandrel bent exhaust maybe even smaller

Last edited by Red2.4SS/SC; Apr 6, 2007 at 12:39 PM. Reason: Automerged Doublepost
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Old Apr 6, 2007 | 01:12 PM
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What makes you so sure is not mandrel bent?
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Old Apr 6, 2007 | 04:35 PM
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no where did I see it go all the way down 2 1/8". I measured with the exhaust on and off the car and there was nothing close to 2 1/8. The stock resonator isn't really restrictive because it is really just a straight through muffler. The muffler is the true weak spot in the exhaust.
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Old Apr 6, 2007 | 09:29 PM
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maybe my 2.0 S/C has a different exhaust then. it is mainly 2.25", but there are tight overlapped spots of 2 1/8 inside the flange and at the weld where the pipe was made to fit inside the 2.25" pipe in the joining sections. Rulers don't lie. i'm talking about inside diameters though, if you're talking about 2.25 outside diameter, then i'm sorry about the miscommunication.

Also, I didn't check, but are you sure that the resonator doesn't have a plug in it also? lots of resonators have straight pipes, but have plugs in that straight pipe to force the air around and in the holes to muffle the sound. i should check mine, but i'm out of town at the moment.
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Old Apr 6, 2007 | 11:04 PM
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Go to www.performancepeddler.com type 12256 in the search box. When you check out type ebaydiscount as the discount code and the the price will drop to $60 and some change. If the price does not go down e-mail him or click on the make and offer and offer $60.

If you add magnaflow muffler #10436 in the place of the resonator you will have the same setup as the magnaflow cat-back system.

Last edited by RBC; Apr 6, 2007 at 11:04 PM. Reason: Automerged Doublepost
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Old Apr 9, 2007 | 08:23 AM
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bump for some help??? how can i tell if an exhaust is mandrel bent?
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Old Apr 9, 2007 | 08:36 AM
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do most shops do mandrel or do you have to specifically ask?
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Old Apr 9, 2007 | 04:16 PM
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most regular muffler shops do crush bends...

performance shops usually do mandrel bends
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Old Apr 25, 2007 | 10:26 PM
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What is the difference in performance? or is it just a sound difference? Can i get a bigger crush bend exhaust to compensate for the smaller madrel bent?
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Old Apr 27, 2007 | 12:16 AM
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yeah, its all about the inner area, i'm sure a bigger crush bent exhaust would allow for good flow. Usually the best thing to do is to buy mandrel bends and straight pipes and weld them together. I'm not sure what shops do what, but i'd think its actually easier to buy pre-bent mandrel bent angled pipes and straight pipes, cut accordingly and weld together.
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Old Apr 27, 2007 | 11:24 PM
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thanks man ia appreciate your help
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