View Single Post
Old 12-04-2017, 07:36 AM   #185
JANNETTYRACING

 
JANNETTYRACING's Avatar
 
Drives: BLUE CAMARO ZL1 1LE M6
Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,225
Quote:
Originally Posted by John_C View Post
What do you think about the stepped headers in 1-3/4 to 1-7/8? Have you dyno'd any?

This folks say the dyno turned +10hp and 8ftlb over 1-7/8.
We have had several cars come through with stepped headers but could not quantify any notable difference since it was not in any back to back testing.

Same goes for the Tri Y Headers.

There is a lot of Header technology that makes power BUT

When you going through a full exhaust system the fancy headers can not show there true ability.

I know we would see advantages in an open header situation that is a fact.

Ted.
__________________
www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705
email tedj@jannettyracing.com
JANNETTYRACING is offline   Reply With Quote