So I've been looking around and it looks like the best option to go with is The ETS 3.5" Catback exhaust, with a Megan Racing O2 housing. Hopefully should put me up to about 430+ to the wheels . If anyone has this set up what were your approximate or exact hp/tq gains with or without retune?

 

Pointless; Buschur tested 3" vs. 3.5" exhaust on a 700+ WHP Evo and it made very little difference other than being heavier and louder.

 

you could just get a cut-out if you want the extra flow.

 

I own the ETS 3.5 and its very very loud.

For no performance gains id stick to 3"

 

We usually don't recommend the 3.5" until your over 750whp. The 3.0" exhaust will support any power under that. If your looking for a loud exhaust then I would go for the 3.5" We run it on our race car and to me it sounds amazing. Several other users on the forum have the exhaust as well. But if your looking for something mild with a bit of a kick at WOT, the 3.0" does the job just fine

Thanks!

Michael

 

^^ nailed it!


The 3.5 sounds bad as hell but isnt needed lol