C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

LG Longtube Header Question

Thread Tools
 
Search this Thread
 
Old Apr 29, 2006 | 11:30 AM
  #1  
vettejockey's Avatar
vettejockey
Thread Starter
Racer
Supporting Lifetime
10 Year Member
 
Joined: Feb 2006
Posts: 349
Likes: 0
Default LG Longtube Header Question

Hey Guys

Just bought a set of LG Pro Series Longtube Headers with Highflow cats for my 03 with A4. I am wondering how much additional RWHP I should expect. Currently I am generating 310RWHP with the following Mods.

Corsa Tiger Shark Pace Care Catback System
Blackwing cold air intake
Hi-Flow Air Bridge with smooth coupler
Dyno Tune
Reply
Old Apr 29, 2006 | 12:23 PM
  #2  
Mike04's Avatar
Mike04
Safety Car
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2004
Posts: 4,353
Likes: 22
From: Bella Vista Ca
Default

Same set up except a Vararam and 3.42s gave me 335Hp and 366Tq after dyno tune
Reply
Old Apr 29, 2006 | 03:42 PM
  #3  
Black 00 Coup's Avatar
Black 00 Coup
Burning Brakes
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2001
Posts: 812
Likes: 13
From: Houston TX
Default

expect about 340hp and don't forget to retune .
I am at 364hp with same set up .
Reply
Old May 1, 2006 | 06:50 AM
  #4  
BudgetPlan1's Avatar
BudgetPlan1
Le Mans Master
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Aug 2004
Posts: 6,723
Likes: 1,089
From: NE OH
St. Jude Donor '09-'10
Default

2004 a4 w/ 2:73
Blackwing, LG Pros, cats, GHL Bullets and tune = 346hp/369tq
Reply
Old May 1, 2006 | 04:45 PM
  #5  
fdxpilot's Avatar
fdxpilot
Safety Car
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 4,661
Likes: 67
From: Ocean Springs MS
Default

Blackwing, LG Pros w/ cats, and stock cat-back (tuned by LG) = 340rwhp/354 rwtq. Had 310/326 before.
Now have a GHL Bullet cat-back but have not re-dynoed. LG said a good cat-back would probably be worth 5 hp.
Reply

Get notified of new replies

To LG Longtube Header Question





All times are GMT -4. The time now is 02:35 PM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE