Pontiac G8 GT Dyno pull, Pypes Headers + Solo axleback exhaust

2009 G8 GT getting some tuning on the dyno.
Only mods are rotofab intake, Pypes longtube headers and solo axleback non mufflers! 350/371 @ 5000 rpm

[@d7r2u4m9m3er]

can you fully explain what you've done to your g8? my buddy has an 08 gt and has been shopping around different exhausts

[@ride446]

Robert Harris This car now has cam, stall and supporting mods. I am happy with it for now.

[@ReLoAdzGameplay]

Dude that sounds so good, really debating what kind of headers to get for my mine

[@pontiacmaniac7772]

Pypes has good stainless ones that are only $444. They are full length and hook up to the stock exhaust. I’m getting those ASAP

[@alexgrasso1643]

How much Horsepower did you gain ?

[@ride446]

Alex Grasso long tube headers should add around 30-50 hp at the wheels depending on your tune and the dyno. Most hp you can get for the money.

[@alexgrasso1643]

Wes Bracken what were the numbers you got with just solo axleback and pypes headers ?

[@ride446]

Alex Grasso 350/370

[@alexgrasso1643]

that's at wheel right

[@ride446]

Alex Grasso correct. Stock should be around 300whp

[@247ukfan]

Does that exhaust set up drone much?

[@ride446]

247ukfan it did not. I recommend turning DOD off with a tune and I actually removed the solo's and went to hooker maxflow mufflers for less noise. The long tubes with solos were a bit too loud under heavy throttle.

[@247ukfan]

I'm kinda looking for loudness at WOT as long as idle isnt too loud and highway cruising doesn't drone

[@247ukfan]

and whenever I get a tune, I'm going to turn dod off

[@ride446]

247ukfan longtube headers are the best money spent for power on these cars. Get a quality air intake, long tubes and a tune from a reputable tuner the car should make around 350 rwhp. 50hp gain over stock

[@247ukfan]

What kind of tuner do/did you have on yours