Maserati Forum banner

1 - 16 of 16 Posts

·
Registered
Joined
·
109 Posts
Discussion Starter #1
I’m ordering some super sprint secondary cat delete pipes today and was also thinking about getting the X pipe as well. then I thought of 2 alternatives. I’m guessing that the resonator is full of fiberglass material? If so, I wonder what the sound would be like if it was all removed? Another option seems that a decent exhaust shop could just cut the resonator out and weld in straight pipe. The Larini H pipes seem to keep the exhaust separated so I suppose this would be similar?
 

·
Performance Specialist
Joined
·
4,713 Posts
The H Pipe is really a different design then the resonator, think of the resonator as a 3rd muffler that helps reduce crackle / pop and keep the overall volume lower. Most X-Pipe designs will remove this resonator.

The Larini H-Pipe is to start off a balanced H-Design which sounds a bit different than the X, it also is a full flow part but has some cancellation of specific frequencies in the design to create a smoother sound. The straight through X pipe is the louder, higher pitched more raw sounding part and the H-Pipe is louder than stock but not as aggressive as the X in terms of volume. The tone of the H-Pipe is also a bit smoother more of a gentleman's sport center section compared to the X-Pipe.

As to the Decats, Larini makes a great set as well, it retains full ground clearance, sounds amazing and the fitment is spot on.

For what it's worth, we have these parts in stock and have some discounts running right now, if you're interested, please reach out to us by phone or email.

Best Regards,
 

·
Registered
Joined
·
109 Posts
Discussion Starter #3
I saw you all had a Larini sale right now. I might jump for the X-pipe. The Supersprint dealers price for the secondary delete pipes was too good to pass up so I went that way in those. Maybe they are getting discontinued?
 

·
Premium Member
Joined
·
1,248 Posts
@FormulaDynamics have you cut a resonator open to see what’s it there? Typical resonator junk?
I have.

The resonator does not restrict any flow, as is the case with a cat or muffler. There are two open channels with a dual wall, the closest to the channel being porous. What it does is eliminate certain frequencies, typically the harsh ones, while retaining the more audible ones, like the trumpeting tones.

I had the benefit of driving my completely straight piped QP with and without the resonator. This allowed me to compare the effect without any influence of additional exhaust components. As with many Youtube vids you will see on V12 lambos, I preferred using the resonator with the cat delete. It took away the rough, harsh sound and turned it into a smooth trumpeting.
 

·
Registered
Joined
·
596 Posts
Can you post some sound pics of the Super Sprint when you have it all installed? I have the Larini decats, stock Gransport X pipe and aftermarket Tubi’s...she screams!!!!

Kindly,
Stephen
 

·
Registered
Joined
·
109 Posts
Discussion Starter #7
Will do. Your set up probably sounds awesome!
 

·
Registered
Joined
·
109 Posts
Discussion Starter #8
My Supersprint decat pipes arrived today. Although they are not as good looking as the Larini pipes I scored these for incredibly cheap. I plan to order an external mic soon and will try to record some before and after sound. I’m not expecting a huge increase since the rest is all stock.

Next piece will probably be an X pipe unless I decide to chop the resonator out and have straight pipe fitted. I sort of like the idea of keeping the stock resonator around for resale; though I really hope to keep this car around for quite a while!

I’m also going to see if I can find a cheap camera/scope so I can check out the condition of the primaries when I switch these out.
 

Attachments

·
Registered
Joined
·
74 Posts
My Supersprint decat pipes arrived today. Although they are not as good looking as the Larini pipes I scored these for incredibly cheap. I plan to order an external mic soon and will try to record some before and after sound. I’m not expecting a huge increase since the rest is all stock.

Next piece will probably be an X pipe unless I decide to chop the resonator out and have straight pipe fitted. I sort of like the idea of keeping the stock resonator around for resale; though I really hope to keep this car around for quite a while!

I’m also going to see if I can find a cheap camera/scope so I can check out the condition of the primaries when I switch these out.
Hi fjman if you want to clean up those welds get some pickeling paste it will take off all the black around the weld.
Cheers Chris.
 

·
Registered
Joined
·
596 Posts
I think those look pretty good. No one will see them honestly. If you are going for the “loud” factor you would most definitely need to get rid of the center resonator especially if you have “stock” tear boxes on your sled.

Kindly,
Stephen
 

·
Registered
Joined
·
109 Posts
Discussion Starter #12
I have to do a new thermostat and a few small things next . Then debate if I X pipe, mod my resonator, or leave it be and do a muffler delete or aftermarket mufflers. The impression I have is that doing it all might get too loud so leaning towards either de-resonate the center or just do the cans...
 

·
Registered
Joined
·
596 Posts
Makes sense to me...so many different scenarios based on sound and performance. If you don’t mind me asking, why are you changing your thermostat...?

Kindly,
Stephen
 

·
Registered
Joined
·
109 Posts
Discussion Starter #14
It’s been running on the cool side when I’m up to speed (140-160 ish) And it seems to get a little over 200 degrees when it’s idling occasionally. I heard that the cooler highway temp was probably the thermostat sticking open?
 

·
Registered
Joined
·
109 Posts
Discussion Starter #16
Yeah. Really not too bad. It’s not the usual 12 dollar thermostat but... maybe $125 with a new temp sender and gaskets
 
1 - 16 of 16 Posts
Top