I am very close to ordering the Dynatech longtubes with the high flow cats. Just wondering what i should expect?...noticeable torque increase?...will it make my Corsa's louder?...is the install three hours like they claim?...Any tips on install would be appreciated.

 

It will be very loud and its worth 20 to 30 horses to the rear wheels.

 

The 20 to 30 extra horses sounds good !..but the very loud concerns me a bit.....

 

If you using cats it shouldn't be too bad, but I'm not the one to advise you cause I don't have dynatechs(yet). I do know cats soak up a lot of sound especially harsh sounds. The X-pipe sound help keep idle and cruise noises in check but it might be a lil raspy. Don't be scurred.[sm=smokin.gif]Plus you have Corsas so if they are as good a advertised you shouln't be horribly loud.

 

Do you think getting the headers will effect my tune?...

 

They will put a huge grin on your face!!

The sound is different, but it's not that much louder. You will feel the HP, that is certain.

I'm not sure that a tune is required or not, but I'd definatley get one. Talk to whoever you bought your tuner from, they'd probably be able to Email you an updated tune file.


The install is EASY, though it is time consuming. It took me about 6 hours to do it with air tools and a floor jack (no lift), though I was going at a liesurely pace. At least one other guy here did it in 3 hours, but he had a proper lift.

If you you are going to do this yourself, there are two tools that are worth their weight in gold. Make sure that you have them:

1. A 5 mm socket, 1/4" drive. This is for removing the factory exhaust studs.

2. A 13mm "gear wrench", preferably the flex-head kind. This is a MAJOR time saver for removing/installing the header nuts/bolts.

Other than that, everything else you need is common shop stuff.

 

What exactly is a "gear wrench"? Sounds like a pipe wrench or "bear claw".

 

I suppose it is technically called a "ratcheting box-end wrench". However, "Gear Wrench" is the most common (only?) brand name. Type "Gear Wrench" into google and you will find out.



[IMG]local://upfiles/32957/5790C183EB744FDC8CF46953E6201570.jpg[/IMG]

 

Oh, those thing are awesome! I use them everyday on the job. We refer to them as "dogbones" Lots of companies make them Snap On, Craftsman, etc.. but be ready to spend $50-$70 for good set. They save tons of time, especially for people like me with grape ape hands that are about as nimble as a brick.

 

Yeah, they are great. I got my set, exactly as pictured, from the Snap-On truck; I bought my standard (fractional) set at Sears. Though, Snap-on doesn't make 'em, they just sell them. I'm fairly sure the brand is "Gear Wrench" but they are sold at various places.

Beware though, there are two types: one that is basically the same as an ordinary combination wrench (except for the ratchet feature, of course), and those that I pictured, which are flexible. The flexible kind is very handy, and those are what I suggest. Even if you have to buy a whole set for this one job, trust me it is WELL WORTH IT.