Author Topic: Best after market exhaust for 3.2  (Read 2046 times)

0 Members and 1 Guest are viewing this topic.

GTV6SA

  • Jr. Member
  • **
  • Posts: 54
Best after market exhaust for 3.2
« on: November 02, 2018, 02:50:29 PM »
What is the best aftermarket exhaust for 3.2 Ti,anyone put Autodelta end boxes compared to Regazzon,wizard or Novitec

Stu159

  • Jr. Member
  • **
  • Posts: 31
    • MotorMode
Re: Best after market exhaust for 3.2
« Reply #1 on: November 12, 2018, 12:15:28 PM »
Hi GTV6SA,

I have no idea, but I'd also be interested to know  :)

It used to claim an increase in horsepower on the Auto Delta description on their webpage, but it doesn't any longer.

Cheers
Stu
Now: 159 V6 Q4 (2006)
Past: Alfetta GTV 2000L (1980) chrome

V AR 164

  • Hero Member
  • *****
  • Posts: 625
  • AROCA Member #: 5003
Re: Best after market exhaust for 3.2
« Reply #2 on: November 28, 2018, 01:50:06 PM »
Someone I know who has a 159 V6 just got custom muffler deletes made up with larger chrome tips fitted.

He came on a club run a few months back and I was astounded how good it sounded. A deep sounding note with no annoying rasp.
He did mention there was a little bit of drone, but I assume that could be solved by putting in place a small hot dog resonator instead of a straight pipe.
Personally I wouldn't spend heaps of cash on brand name mufflers alone if you just want some extra sound. No real gains are to be had unless you go for a full cat back system or header back system.
Best bet would be to go down to your local exhaust shop and get them to try out different mufflers and cater it to your taste.

Andrew.
Present:
-1992 164Q
-1993 Hilux Surf

Past:
-2006 159 2.4 Ti

GTV6SA

  • Jr. Member
  • **
  • Posts: 54
Re: Best after market exhaust for 3.2
« Reply #3 on: September 14, 2019, 02:08:47 PM »
Anyone put a mille miglia exhaust system on their 159 3.2 , costs and results?

Stu159

  • Jr. Member
  • **
  • Posts: 31
    • MotorMode
Re: Best after market exhaust for 3.2
« Reply #4 on: November 09, 2019, 11:15:18 PM »
Hi SA,

I went to Lambros in Darlinghurst in Sydney, considered to be one of the better exhaust places, known in Italian communities for his expertise on exotics, and his recommendation to me for my 159, was that headers would be a waste of money. He said he would do away with the OEM cats and fit a straight through, legal system, with mufflers at the rear only. He said the difference would be more than just noticeable and anything extra headers might add, wouldn't be worth the expense.

cheers
Stuart
Now: 159 V6 Q4 (2006)
Past: Alfetta GTV 2000L (1980) chrome

GTV6SA

  • Jr. Member
  • **
  • Posts: 54
Re: Best after market exhaust for 3.2
« Reply #5 on: November 10, 2019, 11:21:18 AM »
Ended getting Lambros to build a SS catback exhaust system with 2 new mufflers and 4" tips, now sounds what a V6 Alfa should be with a deep low growl.

Stu159

  • Jr. Member
  • **
  • Posts: 31
    • MotorMode
Re: Best after market exhaust for 3.2
« Reply #6 on: January 23, 2020, 07:22:08 PM »
Hello SA,

Thought I might add to this thread, as I've now read on x 2 different UK forums that the most restrictive cat's in the 159 system, are the ones at the manifolds. I'm no mechanic, not even close, but thought I should pass this on as it slightly contradicts what I wrote earlier, from information I'd been given. Downside is that fitting headers is an engine out job apparently, so this would be where the "cost of doing so" advice would apply  :)

Wizard are looking to have headers available for the V6 in their summer, this year. Hopefully they'll be a more realistic price than the ones on offer from AutoDelta

Cheers
Stu
Now: 159 V6 Q4 (2006)
Past: Alfetta GTV 2000L (1980) chrome

GTV6SA

  • Jr. Member
  • **
  • Posts: 54
Re: Best after market exhaust for 3.2
« Reply #7 on: January 24, 2020, 09:39:57 AM »
I have been following the comments on A.O forum as well and speaking with the local Aus
 Autodelta rep, I was also told that the biggest gains for HP is the catless header manifolds.Fom muboen experience in forced induction, it is really important for efficient exhaust scavenging to get rid of gasses, this can be done by equal length headers that are cc'd to make sure the volume is equal, ceramic coated headers also improve efficiency and even  the joint where the headers merge into 1 pipe.One problem with a transverse V6 ,it is very difficult   to have equal length headers on each bank due to the engine configuration without major redisign of the whole exhaust.