How much more horsepower?
Thread Starter
Heel & Toe
Joined: Feb 2008
Posts: 18
Likes: 0
How much more horsepower?
Hi, everyone
I am debating on getting a header, tune, and exhaust. I have a 07 C6 with Vararam cold intake. How much more rwhp am I expecting with the mod. Right now, it is 353rwhp & 354lb torque. Thanks for your help.
I am debating on getting a header, tune, and exhaust. I have a 07 C6 with Vararam cold intake. How much more rwhp am I expecting with the mod. Right now, it is 353rwhp & 354lb torque. Thanks for your help.
Intermediate
Joined: Jan 2008
Posts: 28
Likes: 0
From: Prosper Texas
I have an '08 MN6 and added the Vararam, LG Long Tubes w/high flow cats and the 3" Borla Touring Exhaust.
Stock - 389/383 RW HP/TQ
Post Mods - 425/432 RW HP/TQ
I don't think the Vararam added anything on the dyno so all of the gain came from the headers, exhaust and tune.
Stock - 389/383 RW HP/TQ
Post Mods - 425/432 RW HP/TQ
I don't think the Vararam added anything on the dyno so all of the gain came from the headers, exhaust and tune.
Safety Car
Joined: Dec 2005
Posts: 4,157
Likes: 37
From: North Carolina
St. Jude Donor '07-'08-'09-'11-'12
Forget the HP numbers....Add those mods and you will convert your car to a beast you won't recognize, and then fun factor will be much more rewarding than the dyno sheet. Good luck!
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Header tune is a good move. You might want to consider getting the Intake Manifold and Throttle body ported for about 1/4 the price of the lglt's. Then get a pro tune. Look for about 387 Rwhp/tq. Good luck with your mods.
Race Director
Joined: Apr 2008
Posts: 17,373
Likes: 6
From: Chatsworth California
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Drifting
Joined: Apr 2008
Posts: 1,955
Likes: 22
From: Lehigh Valley Pennsylvania
Best first mods period, expect 20-30 hp and tq. My LS2 is kind of freaky and made 365 on a Mustang Dyno stock. I made 405/385 on a Dynojet with Vararam, Headers, no cats, ported Intake/TB, and descreened MAF.
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Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
He tuned mine and added a PORTED FAST 412 / 408 at the wheels at
keiyhs Pitstop.
Drifting
Joined: Apr 2008
Posts: 1,955
Likes: 22
From: Lehigh Valley Pennsylvania
Absolutely Man, he did all the tuning on my GTO when I had it. It's a PITA drive from Allentown, especially because I hate driving it on 78, but worth it in the end. It's a much easier drive from Reading though, straight out 222 and not many big rigs.
Last edited by NormWild; May 22, 2008 at 04:59 PM.
Advanced
Joined: Nov 2002
Posts: 69
Likes: 2
From: BROOMALL PA
I just got a tune on a mustang dyno 364rwhp/371 torque.
ARP headers , breathless cai,ported trottle body.corsa sport.
I don't know what stock would have been. They say the mustang dyno read a little low?
ARP headers , breathless cai,ported trottle body.corsa sport.
I don't know what stock would have been. They say the mustang dyno read a little low?
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Safety Car
Joined: May 2005
Posts: 3,990
Likes: 1
From: Corpus Christi Texas
My 05 C6 mn6 made 378rwhp/358rwt SAE on a dynojet. This particular dyno was known for giving low torque readings...it did so with my 03 Cobra as well. Anyway, I had a Halltech Stinger CAI, Kooks 1 3/4" long-tubes, Corsa cat-back and tune.
Melting Slicks
Joined: May 2005
Posts: 2,363
Likes: 1
From: Frisco TX
I agree those are the best first mods. You think your LS2 is freaky, mine made 381 rwhp on a Mustang with the same mods as yours. (Kooks headers, catless X-pipe, Callaway Honker, ported TB/intake and tuned.)
Burning Brakes
Joined: Jan 2008
Posts: 1,021
Likes: 2
From: Lake Havasu City, AZ
St. Jude Donor '08-'09-'11-'12
I did the Vararam CAI, 1`60 Tstat and Chuck COW tune and LOVE it in my 05 A4 Vert....I have a complete set of Z06 exhaust that is going on soon and that will be it. I decided that even that won't be enough for me so I gave the wife the 05 and bought an 08 Z06! 
Race Director
Joined: Oct 2005
Posts: 14,555
Likes: 1,255
From: Saint Albans, WV
Intermediate
Joined: Nov 2005
Posts: 36
Likes: 0
From: fresno ca
I have an '08 MN6 and added the Vararam, LG Long Tubes w/high flow cats and the 3" Borla Touring Exhaust.
Stock - 389/383 RW HP/TQ
Post Mods - 425/432 RW HP/TQ
I don't think the Vararam added anything on the dyno so all of the gain came from the headers, exhaust and tune.
Stock - 389/383 RW HP/TQ
Post Mods - 425/432 RW HP/TQ
I don't think the Vararam added anything on the dyno so all of the gain came from the headers, exhaust and tune.
