I need you guys advice!!
Thread Starter
Pro
Joined: Oct 2004
Posts: 644
Likes: 15
From: Clarksville Tennessee
I need you guys advice!!
I've finally purchased a mini ram for my 85 383. 
My exhaust system has TPIS LT headers, 3" front Y pipe, random tech cat and flow master40's mufflers. I have not replace the stock rear Y pipe. What I need to know is ....Is it necessary to up grade my rear Y pipe? Or should I leave it as is because it won't make much of a difference in terms of noticeable HP/TQ. 
Thanks!!
My exhaust system has TPIS LT headers, 3" front Y pipe, random tech cat and flow master40's mufflers. I have not replace the stock rear Y pipe. What I need to know is ....Is it necessary to up grade my rear Y pipe? Or should I leave it as is because it won't make much of a difference in terms of noticeable HP/TQ. Thanks!!
Team Owner
Joined: Dec 2007
Posts: 20,974
Likes: 261
well if you are pushing like 350-400 hp yes or it is a restriction, that is why they have sizes of inlets and outles of mufflers even, I would stay with 3in all the way through now if you have 3in in front. I think for loke 400hp you need 3in to flow it all out, plus you have long tubes, and now you will be pumping more air with the mini.
IMHO
IMHO
