shortstar acceleration video

[Custom88]

now that is what I like to see! I think the 8 sounds much nicer though. lol. the acceleration is also a LOT faster it looks like from that video. Reminds me of the good old says.. I timed it from here and your 0-60 is very low 7's, almost in the high 6 range.

EDIT: I watched mine again and your'e right, it's a very similar sound with the V8 sounding just a tad deeper. in the High RPM's the 8 definately sounds more powerful. (as it should . the crappy digital camera probably has a lot to do with why the sound is different. I think I'm going to go the camcorder/video in card on my computer. lol. ;D

[stevensolds]

Yeah, I think the 2nd gen was what, 200 lbs lighter than the boat classic. My 60 time was 7 and a half i timed several times on way to Carlisle.

dropping in 2nd and even my old half-throttle to get up and going, then floor technique didnt even help. Oh well. 60-80 is the best though for me and 70-110 in only 9 seconds.

[Aurora40]

custom88 said:

I'd rather not go the nitrous route. I'd rather have the power there all the time rather than only when I punch a button. . How much did that Corsa exhaust cost you if you don't mind? I like the stock tips fine, so I'd only really change the mufflers probably. Was the stock exhaust really that restrictive?

The problem with having the power all there all the time, unless you are talking smaller increases like from a freer exhaust, is that it will hurt economy all the time. There's less/no trade-off if you have a small shot of nitrous as most of the time you wouldn't use it. I understand, though, I wouldn't be interested in it either.

The Corsa system including shipping was $1,020 and they had custom fit it for my car. However, I ended up having them ship me a small extra lenght, and also going there for some final fitment, which they did for free. When I cut my system according to their instructions, it ended up being too short, each pipe didn't overlap by very much.

You could buy an STS system for probably less. You might be able to find one on eBay or maybe a shop for closer to $800. I suspect if you lay it all out beforehand carefully, you could fit it yourself if you can cut stainless steel (which I had to do by hand, was a nightmare!) Or you could probably have them fit it for you for free if you bought direct from them. You can't buy just the mufflers, or at least you never could before. Maybe they have some laying around from returns or something, it's worth calling about. Or maybe posting up on a Caddy board to see if someone's got one you could salvage mufflers from.

The system is really straight-through. You can look right through each piece. The stock system is not at all, and it has some places it necks down and such. In fact, even the resonator is not totally straight-through stock. There is like an offset sleeve in there that is a bit narrower than the overall pipe. You can look through it, but there is clearly more restriction than an open 2.5" pipe.

However, I would say, purchase it because you feel the sound is worth the money. It is very hard to guess the performance or economy gains from it on your car. It made a decent power gain for me, for sure. But we have different engines exhaling through the same exhaust. Perhaps it's not as restrictive on your car. I have no idea.

What I do know, is that the sound is awesome. And the cruise note is silent. As great as the car sounds inside with the windows up, it sounds better with them down. And as great as that sounds, it sounds even better if you are in another car following it. The sound from outside is just incredible, in my opinion. Maybe Steven or Dan or Amanda can weigh in with a more impartial opinion as they both got to hear the car a good bit.

The Corsa is definitely not a bang-for-the-buck choice. If there is a decent restriction in your car, you could get some improvement with similar sound for less. And you could get little to no restriction with probably a lot of sound for less. I think what it would be hard to get is the straight-through flow improvement while retaining a stock-noise-level idle and cruise.

Honestly, I like it enough that the availability of a Corsa system on a car is at least one factor in my "do I want that car?" calculation... Of course, a Corsa system is available for the 'vette... I'm definitely thinking of headers and Corsas, but want to enjoy the stock sound a bit more first.

[95mushroom]

Yes, go to ebay and look up Corsa exhausts kits for like Tahoe's and vettes. Then ask the sellers if they would be able to get the 98-03 Cadillac STS exhaust. I did this and my best offer was $899 shipped.

[Custom88]

what's everybody think of Borla? They sounded awesome on the Riviera. I hate to get rid of the stock pipes since they're higher quality SS. Most shops don't do SS around here. I think best bang for the buck mod would be a reprogrammed PCM still. hmm.

[95mushroom]

I kinda think of them as overpriced Magnaflow...

[Letitroll98]

custom88 said:

what's everybody think of Borla? They sounded awesome on the Riviera. I hate to get rid of the stock pipes since they're higher quality SS. Most shops don't do SS around here. I think best bang for the buck mod would be a reprogrammed PCM still. hmm.

The Borla XL line was rated as one of the best hp gain units around, tied with Magnaflow, on a test using the 4.6L Ford Mustang engine. This is an engine not all that different from ours. Note that Borla makes several different models and this test only applied to the XL. Not cheap, but a quality product.

[stevensolds]

4.6 aint that much different than ours??? its got massive low-end torque.

[Letitroll98]

The engine architecture is similair with overhead cams and four valves per cylinder. Therefore gains realized in one would probably translate well to the other, ergo the Borla and Magnaflow results from the Ford 4.6L could be considered valid on the Premium 4.0L regardless of their relative torque ratings.

P.S. I'm a bit late on this reply, but your torque steer problem is most likely related to the alignment you are currently running.