H Pipe vs X Pipe vs Y Pipe

[GregO]

My buddy put a set of corsa LT's, cat delete, x-pipe, corsa axle back on his 2015 S550 MT82, 3.31 gears. Same 28" rears as me. All he managed to do was slow it down for the most part.

Your running OEM headers w/o the you know what’s ? What crossover are you using ?

Maybe your buddy should ditch the X for a size on size or minus one pipe diameter H, then possibly try a choke after the wideband 02 being this is a Catless setup ?

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[WildHorse]

Your running OEM headers w/o the you know what’s ? What crossover are you using ?

Yep. OEM headers, free flowing exhaust, h-pipe. No need for 4 into 1 LT's.

 

[Intrepid175]

This was a stock ‘18 M6 pull before and after Steeda H-pipe install. You can definitely see the torque increases down low. I do believe the after install pulls were also down a little due to the higher DA and the fact that the car was more heat soaked than It was for the morning pulls.

So from 2300 to 3600 rpm, it's showing an average torque increase of 12.6 ft/lbs. That's not earth shattering but at least it's something. I averaged all the data at or above 9 ft/lbs. All the rest of the data averaged an increase 0.72 ft/lbs. That's hardly going to be noticeable on a car the size and weight of a modern Mustang. Looks to me like the only reason to do the resonator delete alone is for sound reasons because the performance gains don't look to be worth the trouble, but to each their own!

 

[RichardC]

Which one is your favorite? What are the pros and cons to them?

I often see off-road use warnings on exhaust modification ads. Any problem with the law running x or h pipes on the street?

 

[Super-Genius]

I often see off-road use warnings on exhaust modification ads. Any problem with the law running x or h pipes on the street?

I've never had an issue ...

 

[WildHorse]

the only reason to do the resonator delete alone is for sound reasons because the performance gains don't look to be worth the trouble, but to each their own!

Also the h-pipe is half the weight of the suitcase. My axlebacks are half the weight of the stock mufflers, all adds up to performance increase.

 

[Super-Genius]

Also the h-pipe is half the weight of the suitcase

If I remember right, I think mine saved about 12 lbs ... the shop weighed both of them for me

 

[WildHorse]

If I remember right, I think mine saved about 12 lbs ... the shop weighed both of them for me

I guess it depends on who's h-pipe. Safe to say at the bare minimum 10 lbs savings.

 

[TRM99]

I guess it depends on who's h-pipe. Safe to say at the bare minimum 10 lbs savings.

Sent ya a PM Wildhorse.

 

[mnm4ever]

My 2015 GT with stock exhaust but an H pipe resonator delete sounded perfect. It’s what Ford should have offered from the factory.

 

[dman]

Meanest lawnmower in town

Ever heard the Ford GTs on track? Quite a lawnmower…

 

[Elvis67]

Originally I did the x pipe then did the corsa Double X pipe..sounds and performs better with my rough axle backs.

 

[GregO]

No need for 4 into 1 LT's.

I’m wondering how @Flyhalf made out switching to LT’s on his track car.

 

[Flyhalf]

I’m wondering how @Flyhalf made out switching to LT’s on his track car.

long tubes?
still waiting to install them

 

[Flyhalf]

ps. a catback 3" is 14whp worth

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