Magnaflow - 12589 or 12259 for 5.3

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

OP
OP
08HoeCD

08HoeCD

Full Access Member
Joined
May 6, 2016
Posts
2,052
Reaction score
1,931
Most people complain about it not being loud enough

Yeah, I know lots of people run SLP Delete with 12589...and I've seen some complain that it's not loud enough, too. That's why I'm wondering more about 12259. If it doesn't really drone with resonator delete then that's likely my pick.
 

Goodinblack

I Like Tacos
Supporting Member
Joined
Oct 27, 2011
Posts
22,295
Reaction score
3,037
Location
Dirty South
Yeah, I know lots of people run SLP Delete with 12589...and I've seen some complain that it's not loud enough, too. That's why I'm wondering more about 12259. If it doesn't really drone with resonator delete then that's likely my pick.
What year is yours?

The older trucks don't have a 3rd cat and kills some sound on the newer ones

I have a 09 and it has a third cat. Well it used to amyway
 
OP
OP
08HoeCD

08HoeCD

Full Access Member
Joined
May 6, 2016
Posts
2,052
Reaction score
1,931
UPDATE:
I installed the Magnaflow 12589 and love it. Might not be loud enough for youngsters who want/need to be heard from 1/2-mile away, but it's perfect for me.
 

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
30,958
Reaction score
45,061
Location
Central Jersey
UPDATE:
I installed the Magnaflow 12589 and love it. Might not be loud enough for youngsters who want/need to be heard from 1/2-mile away, but it's perfect for me.
Can you post a sound clip? Had a Magnaflow on my work van, and it sounded great.
 
OP
OP
08HoeCD

08HoeCD

Full Access Member
Joined
May 6, 2016
Posts
2,052
Reaction score
1,931
Can you post a sound clip? Had a Magnaflow on my work van, and it sounded great.

I will try this weekend. But be warned that the tone is mild.

Actually, here is a representative clip from YouTube with my same setup. My Tahoe is a 2008 with two instead of 3 cats (I understand that there are 3 cats on 2009 and later model years) so my tone might be very slightly deeper/louder, but not by much. Just skip to the 4:00 mark:
 

Forum statistics

Threads
128,797
Posts
1,805,574
Members
91,781
Latest member
amberv96
Top