Question about CUTOUTS
Thread Starter
Teching In
Joined: Aug 2005
Posts: 20
Likes: 0
From: chitown
Question about CUTOUTS I currently have a stock Camaro Z/28, an LS1. it had a muffler and nice tips put in before i bought it but thats just not enough. For those of you with cutouts....... How and Where and such? Where are they put, before the cats, after the cats? 1 cutout or 2? will it be as loud as open headers/manifolds? improve mileage and/or power? how big the diameter? how much? electric or vacuum or those plates u change? and anythign else you have experiences with you would like to share or personal opinions.
THANKS IN ADVANCE
-Adam
THANKS IN ADVANCE
-Adam
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
One 3" cutout in the I-pipe, in the niche under the passenger seat is all you need.
Dual cutouts in the Y-pipe really mess up your ground clearance.
I've had both setups. 1 is good for both power and sound.
Elect. motors control the butterfly valves in the elec. cutouts sold by QTP---->.
Look at their wbesite.
Manual cutouts involve reaching under your car and uncapping a plate with 3 wing nuts.
Dual cutouts in the Y-pipe really mess up your ground clearance.
I've had both setups. 1 is good for both power and sound.
Elect. motors control the butterfly valves in the elec. cutouts sold by QTP---->.
Look at their wbesite.
Manual cutouts involve reaching under your car and uncapping a plate with 3 wing nuts.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by skymarauder
what about the mileage and loudness, what do u mean by passenger side niche? thanks
Manual and elect. cutouts are the same by the way. The only thing that makes the elect. ones elect. are the device that caps the cutout.
Loudness - very.
Mileage - I don't see how this affects your MPG.
Also, cutouts sound like *** at part throttle. Only sound good at idle or at Wide Open Throttle.
Also, open cutouts push your tq peak up in the rev range. They make your "feel" slower when accelerating from a low rpm. They infact open up the exhauast and make more hp and tq as a result, but their advantage is best put to use for high rpm use.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
$45 for a cutout, I paid $20 for the weld-in. It's a quick cut and weld. I've heard of guys clamping them on with success, but I wouldn't do that.
For a near stock daily driver, it will free up a few hp and produce a ton of noise when open. It's up to you if that's something that you want.
For a near stock daily driver, it will free up a few hp and produce a ton of noise when open. It's up to you if that's something that you want.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I have the QTP 3in. elec. cutout behind the Y-pipe, you really only need one, sounds mean as hell, improves power in the upper rpm's, it will run you about 140 to 160 for a good one, try www.ws6store.com, they have good prices.