Zip34

I was looking at getting the Bassani x pipe with cats and catback system. If you get high flow cats with the x pipe it is so much more $$$!

I just wanted to know if high flow cats are worth all the extra cash over regular cats. If the importance is significant then I can rationalize the extra expense. I am also looking at future mods (like headers/intake), so take that into consideration.

I considered just going to a straight pipe, but I would rather remain legal... for now.

Justin

sodaman

Well as stated in many threads about the bassani system. It is supposed to give you 20 hp without a tune, and about 40 hp with a tune. This is with the competition cats, xpipe, and axle backs. It is an awesome system. Sounds great. Good luck. Oh yah no check engine light either without tune.

stkdidy

does this system bolt straight up to the stock headers?

i was dead set on long tubes, but price/performance and work involved didn seem worth it right now, so im interested in this if its bolt up

38special

Exhaust only gave me 10 hp. But you realize much more top end power.

Torrence

How much are the Bassani's? I am going to go with Magnaflow TRU X-pipe with the high flow cats for 395.00 delivered to my door. Then it will be time to hook them up to the FLOWMASTERS in back.....

1trickpony

I have a magazine article that featured the bassani cats, x pipe and mufflers. Peak HP was up around 8 rwhp and torque make be 10. The average imcrease from 3800 rpm to 6200 rpm was 10rwhp and 12 rwtq. Points of interest, torque was up 16 at 3800 rpm.

sodaman

Really ! I have been told several times on this forum by others, that there was an article in MM&FF that had tested the system, and had shown higher numbers than that. I really love the set up.

1trickpony

The magazine was June 5.0 Mustang. They showed two sets of numbers, just exhaust and exhaust with tune. They ran the engine to 6600 rpms to get the 40+ HP gain with tune. Just exhaust +7HP and 12 TQ. With tune +16 HP and 13 TQ. At 6000 rpm +18 HP. The big gains came from tuning the A/F ratio at high rpms. Just looking at the numbers, I'm guessing the high flow cats are only 3-4 HP. The mufflers should get you 6-8 HP and the x-pipe 3-4 HP. That doesn't leave a lot for the cats.

OBleedingMe

Doesn't Bassani offer an offroad x-pipe that bolts to the header iwth NO CATS? Hmm.. I wonder what the numbers will look like with an off-road x-pipe.

emperorjordan

wait.... so are you guys saying that I could get the comp cats and X pipe, bolt em up, and not need a predator or Xcal or any other tune?!?

vppreacher

Does "offroad" mean not street legal?

1trickpony

According to the article, yes you don't need the tune. The tune will get the most out of your upgrade. According to Magnaflow, the difference between hi-flow cats and no cats is only 2-3 HP. I'm assuming that's on a stock engine so you'd get more with some serious mods.

Zip34

With the Bassani x pipe, high flow cats and catback, I would hope to have at least 15 hp. Especially if you get all stainless you are looking at around $1000.

I looked at the Corsa stainless catback (which alone is $700) and according to a chassis dyno you get 13 hp and 9 lb/ft of torque.

So I'm looking at it like this: $1000 for entire Bassani system getting me approx. 15 hp vs. $700 for just Corsa catback getting me 13 hp.

BUT...I'm also trying to look towards future mods. So my next question is if I don't use the Bassani x pipe/high flow cats and catback, and I just go with the stock pipe/cats and Corsa catback, is it going to hinder the effectiveness of my future mods (i.e. headers and intake)?

If I need to eventually replace the stock cats and pipe anyway, then I'll probably just go with the Bassani setup (it sounds soooo good anyway).

Justin

1trickpony

I thought they were pretty weak gains for over $1000. I think you'll get most of those gains with just the thru-type mufflers. I haven't seen any gains posted for chamber-type mufflers. I noticed 16 pounds of torque around 3800 rpm. I'm guessing most of that is from the x-pipe. Most muffler don't seem to make big gains until 4000 rpm, so I don't think its the mufflers making the torque. It didn't last long so I wonder if its worth $300 for 5lbs of torque for 300 rpms. I know Livernois and Corsa claim 13 HP, but most independent sources usually show 8 or so HP for a thru-type muffler. Just putting it out there.

Kluski

I have not heard of anyone getting any additional HP out of just exhaust. I have heard most of the gains come from the X-pipe (and any tune added)


<!--QuoteBegin-vppreacher@July 9, 2005, 10:50 PM
Does "offroad" mean not street legal?

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Ha Ha!! If it were street legal, they would call it On Road, not off road. I think you can get away with it if you do not live where you have to get emissions testing.

Another advantage is a weight reduction of about 30 lbs. I read some posts of people that have noticed a significant weight difference between stock and hi-flow

1trickpony

There's a couple of posts on this site for Bassani showing 6-8 HP and There's a magazine article for Magnaflow showing 9 HP. I mean straight thru type mufflers like Bassani/SLP/Magnaflow. I've never seen an improvements from chamber type mufflers like JBA. I went to the Dr. Gas website and read about the x-pipe. It only made about 5 more HP on a NASCAR engine or .5 percent more power. I understand the NASCAR engine started out very efficient. I read even Magnaflow said there hi-flow cats and x-pipe was 5-7 rwhp. If the cats are 2-3, there's not much left for the x-pipe. It looked like the x-pipe bumped up mid range torque briefly. I curious if someone put an x-pipe on a otherwise stock car. Install some Bassani mufflers first and dyno, then install their "stock cats x-pipe" and dyno again.

Zip34

Hmmm... that is a bit confusing to me. If you are not able to gain actual HP out of the exhaust, how can Corsa claim a 13 hp difference with nothing more then the catback? :scratch:

Anyway, I think I've decided to go with the Bassani catback for the amazing sound it provides. Next I'll save up and get a CAI, x pipe, headers, and then a tune to get the most out of my mods.

sodaman

You will love it zip 34, and yes my system bolted straight up, no tune. Car runs awesome, and what a beautiful sound. I definitely recommend the whole set up. Get compliments and fingers up all the time. Gorgeous.

vppreacher

Sodaman,
would you have a link to the Bassani system you bought?

38special

I have said this before, but the x-pipe from Bassani is much lighter than stock. So you gain an awsome sound, lighter car, more top end power, and about 10 additional hp overall. I love it. My 4th gear loves it as well. The C&L tune and CAI work with it flawlessly also.

Fit and finish was pretty good, but good luck getting your o2 sensors free from the stock cats if you do it yourself.

Interior car noise is similar to just the catback. I can still hear my stereo, mostly.

Interior temp is down greatly. Stock cats are five times as large and generate five times the heat.