LT1-LT4 Modifications 1993-97 Gen II Small Block V8

how much hp for a cutout??

Thread Tools
 
Search this Thread
 
Old Apr 17, 2008 | 01:11 PM
  #1  
96lt1ws6's Avatar
Thread Starter
Teching In
 
Joined: Apr 2008
Posts: 5
Likes: 0
Default how much hp for a cutout??

with an otherwise stock exhaust how much hp gain is there with a cutout in the y-pipe? And is a cutout worth more hp than an aftermarket catback or the same?
Reply
Old Apr 17, 2008 | 01:17 PM
  #2  
chavez885's Avatar
TECH Addict
iTrader: (12)
 
Joined: Dec 2005
Posts: 2,382
Likes: 1
From: Concord, CA
Default

Depending on the catback, i'd say about the same. If you have a catback, a cutout isn't gonna net you much. If you are on stock exhaust, you'll see some better gains, I'd say 10hp at the most for a catback or cutout.
Reply
Old Apr 17, 2008 | 01:19 PM
  #3  
Cas0484's Avatar
Teching In
iTrader: (1)
 
Joined: Oct 2007
Posts: 29
Likes: 0
From: Lake Mary, Florida
Default

Originally Posted by chavez885
Depending on the catback, i'd say about the same. If you have a catback, a cutout isn't gonna net you much. If you are on stock exhaust, you'll see some better gains, I'd say 10hp at the most for a catback or cutout.
I agree. I saw 2rwhp on the dyno from my Borla and open cut out.
Reply
Old Apr 17, 2008 | 01:25 PM
  #4  
gold98Z28's Avatar
TECH Resident
iTrader: (7)
 
Joined: Feb 2008
Posts: 755
Likes: 0
From: south point,OH
Default

i picked up about 8rwhp with dual cutouts off the headers basically open headers, over a hooker cat back, and about .4 at the track...........
Reply
Old Apr 17, 2008 | 03:35 PM
  #5  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

People with big mods will see more power with a cutout. Your stock car might if you have no exhaust mods, but I wouldn't waste the money yet. I've seen people lose 2hp up to gain 7hp, and make 0-10tq with one. Just drop the dough on dual exhaust
Reply
Old Apr 17, 2008 | 04:01 PM
  #6  
nomoneyz's Avatar
TECH Fanatic
15 Year Member
iTrader: (15)
 
Joined: Aug 2006
Posts: 1,458
Likes: 1
From: Apple Valley - So Cal
Default

How many times is this subject going to come up. I gained 10hp and 1tq over my stock exhaust with the cutout.
Reply
Old Apr 17, 2008 | 04:48 PM
  #7  
Formula350's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Oct 2006
Posts: 7,564
Likes: 4
From: Decatur, TN (N-W of Athens)
Default

How many times does ANY subject re-come up? At least a million times.
Reply




All times are GMT -5. The time now is 10:37 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE