08 is350 mods
Mar 12, 2019 | 10:58 PM
Thread Starter
Joined: Feb 2019
Posts: 44
Likes: 1
From: Illinois
08 is350 mods
any performance mods i can do for increase in power besides headers? im about to get a muffler delete
Mar 13, 2019 | 03:22 AM
Joined: Aug 2014
Posts: 1,912
Likes: 224
From: RVA
The oh so famous muffler delete. That won’t really net you any gains. Look into the performance thread and you will find plenty of answers. Ppe headers is a great start.
Mar 13, 2019 | 05:02 AM
Joined: Feb 2016
Posts: 1,358
Likes: 129
From: ON, Canada
forget all the bolt ons and just grab the RR Racing supercharger!!!
Mar 15, 2019 | 02:08 PM
Joined: Mar 2011
Posts: 11,576
Likes: 444
From: South Carolina
RR Racing tuned ECU, plus the usual "suck and blow" mods.
Mar 15, 2019 | 04:02 PM
Joined: Feb 2013
Posts: 921
Likes: 42
From: Ontario, Canada
I've got the RR racing tune and its fabulous.
Mar 16, 2019 | 06:06 AM
Joined: May 2008
Posts: 2,686
Likes: 19
From: carbon F, Fl
plus get some light weight wheels and you will feel a difference.
Mar 16, 2019 | 12:33 PM
Thread Starter
Joined: Feb 2019
Posts: 44
Likes: 1
From: Illinois
does the 7200rpm tune increase power? and if so by how much
Mar 17, 2019 | 03:13 AM
Joined: Aug 2014
Posts: 1,912
Likes: 224
From: RVA
Yes. It increases power. They have dyno results on their page.
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Mar 17, 2019 | 06:41 AM
Joined: Feb 2016
Posts: 1,358
Likes: 129
From: ON, Canada
for the IS350... +15 whp/wtq iirc
Mar 18, 2019 | 12:54 AM
Thread Starter
Joined: Feb 2019
Posts: 44
Likes: 1
From: Illinois
i just got my muffler delete done recently and its getting some low backfires through the lower gears when i accelerate and let off. if i got aftermarket resonators or midpipes will it increase the backfires??
Mar 18, 2019 | 05:22 AM
Joined: May 2015
Posts: 444
Likes: 69
I would recommend a catless 2.5" midpipe and tune before headers. I was able to notice a difference with a tune, I did not notice gains from headers.
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