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Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

11-06-2013, 07:24 PM

Replies: 131

How much HP 2.5 exhaust?

Views: 14,939

Posted By Iam Broke

Glad you saw some gains from it. I think i'll...

Glad you saw some gains from it. I think i'll pulley down to 3.2" instead though. The drone on mine with a full 3" was just too unbearable. ;)

Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

11-06-2013, 05:09 PM

Replies: 131

How much HP 2.5 exhaust?

Views: 14,939

Posted By Iam Broke

3.2% gain on the second pull. Too bad we don't...

3.2% gain on the second pull. Too bad we don't know the da on both days.

Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

11-03-2013, 03:49 PM

Replies: 131

How much HP 2.5 exhaust?

Views: 14,939

Posted By Iam Broke

...and a blower cam...and a Melling oil pump...

...and a blower cam...and a Melling oil pump ..and new chain & sprockets...then I'd need forged pistons...a clutch...axles...diff..squash...and so on and so on. lol.

Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

11-03-2013, 10:06 AM

Replies: 131

How much HP 2.5 exhaust?

Views: 14,939

Posted By Iam Broke

I log almost every cruise & pull, as DA changes I...

I log almost every cruise & pull, as DA changes I may lose a tenth or two but MAF freq remained the same at 10,050 peak, boost remained the same with just the exhaust swap. Not saying ~5 whp may have...

Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

11-03-2013, 06:48 AM

Replies: 131

How much HP 2.5 exhaust?

Views: 14,939

Posted By Iam Broke

I went from a 3" MBRP (no bottleneck at the...

I went from a 3" MBRP (no bottleneck at the headers, custom full 3") back down to a 2.5" Solo Mach XL to eliminate the deafening drone. While no dyno was done, my 60-100 mph time remained the same at...

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